{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"The influence of Nb on the coarse grain <span style=\"color:red\">heat-affected</span> <span style=\"color:red\">zone</span> (CGHAZ) microstructure, mechanical property and the transformation kinetics of HSLA steels under different <span style=\"color:red\">heat</span> inputs, has been investigated. When welded at higher <span style=\"color:red\">heat</span> inputs (100~60kJ cm-1), impact toughness values of the steel without Nb are much higher than the steel with Nb, and the lowest span is 153J at 60kJ cm-1. But only a little higher values are observed at lower <span style=\"color:red\">heat</span> inputs (40~30kJ cm-1), and the highest span is 68J at 30kJ cm-1. Dilatation studies indicate continuous cooling transformation start temperatures (Ts) of CGHAZ for the steel with Nb are approximately 15~30°C lower than the steel without Nb at all <span style=\"color:red\">heat</span> inputs. Under higher <span style=\"color:red\">heat</span> inputs Nb in solid solution suppress ferrite transformation and promote the formation of granular bainite which has detrimental effect on impact toughness. Under lower <span style=\"color:red\">heat</span> inputs higher Charpy impact energy values in the steel with Nb are associated with the formation of low carbon self-tempered martensite.","authors":[{"authorName":"ZHANG Ying-qiao ZHANG Han-qian","id":"e9f98a07-d1b7-4302-ab2e-929272463935","originalAuthorName":"ZHANG Ying-qiao ZHANG Han-qian"}],"categoryName":"|","doi":"","fpage":"73","id":"ed74edb6-59b6-4cde-a033-3539fb4cbfa8","issue":"5","journal":{"abbrevTitle":"GTYJXBYWB","coverImgSrc":"journal/img/cover/GTYJXBEN.jpg","id":"1","issnPpub":"1006-706X","publisherId":"GTYJXBYWB","title":"钢铁研究学报(英文版)"},"keywords":[],"language":"en","publisherId":"1006-706X_2009_5_14","title":"Effect of <span style=\"color:red\">Heat</span> Input and Niobium on the Microstructure and Toughness of Coarse Grain <span style=\"color:red\">Heat-Affected</span> <span style=\"color:red\">Zone</span> in HSLA Steels","volume":"16","year":"2009"},{"abstractinfo":"In a compression test for a Zr-based bulk metallic glass, a dominant shear band was preserved before fracture by a cylindrical stopper. A <span style=\"color:red\">heat-affected</span> <span style=\"color:red\">zone</span> (HAZ) similar to 10 mu m thick together with shear band was discovered in the center of the deformed sample by preferential ion milling. By using a low aspect ratio sample for compression, diverse micron-scaled HAZs among multiple shear bands were also revealed. Based on above experimental results and the isothermal source model, it was found that the thickness of shear band and its HAZ increased continuously with the progression of shear deformation.","authors":[],"categoryName":"|","doi":"","fpage":"2133","id":"fe5f7a37-043c-4f54-bdee-6db20e9b258f","issue":"8","journal":{"abbrevTitle":"JOMR","id":"155c387a-c8cb-4083-85f3-6b58aeef4116","issnPpub":"0884-2914","publisherId":"JOMR","title":"Journal of Materials Research"},"keywords":[{"id":"54788df4-b7bc-4516-a9ef-74e270bc1a2c","keyword":"transmission electron-microscopy;amorphous-alloys;plastic-flow;deformation;behavior;fracture;temperature;compression","originalKeyword":"transmission electron-microscopy;amorphous-alloys;plastic-flow;deformation;behavior;fracture;temperature;compression"}],"language":"en","publisherId":"0884-2914_2008_8_2","title":"The more shearing, the thicker shear band and <span style=\"color:red\">heat-affected</span> <span style=\"color:red\">zone</span> in bulk metallic glass","volume":"23","year":"2008"},{"abstractinfo":"The distributions of residual strains and grain boundary microstructures were investigated in the <span style=\"color:red\">heat-affected</span> <span style=\"color:red\">zone</span> (HAZ) of a weld joint between Alloy 690TT (thermally treated) and Alloy 52 Using electron backscatter diffraction (EBSD) and transmission electron microscopy. the distributions of residual strains were examined at the top, middle, and root of the HAZ using EBSD to obtain the grain average misorientation. The weld residual strain increased from the top of the weld to the root while the peak of strain approached the fusion boundary (FB) in the HAZ. The maximum strains and their distances to the FB in the top, middle, and root was 15% and 800 mu m, 17% and 600 mu m, 20% and 200 mu m, respectively. The fraction of Sigma 3 special boundaries was about 40% in the HAZ but With obvious deviations from the structure of ideal boundaries. The HAZ region is considered to sustain the highest susceptibility to SCC at the root of the weld. (C) 2009 Elsevier B.V. All rights reserved.","authors":[],"categoryName":"|","doi":"","fpage":"109","id":"fd1e9cc2-0388-4c8f-90fb-2449328479e7","issue":"42738","journal":{"abbrevTitle":"JONM","id":"4be2270b-0fcc-4d12-b1ed-2de900c491e3","issnPpub":"0022-3115","publisherId":"JONM","title":"Journal of Nuclear Materials"},"keywords":[{"id":"aa962d68-504e-4b28-85ab-40a3a2166746","keyword":"stress-corrosion cracking;temperature distribution;water-reactor;behavior;metal","originalKeyword":"stress-corrosion cracking;temperature distribution;water-reactor;behavior;metal"}],"language":"en","publisherId":"0022-3115_2010_42738_1","title":"Residual strain measurement and grain boundary characterization in the <span style=\"color:red\">heat-affected</span> <span style=\"color:red\">zone</span> of a weld joint between Alloy 690TT and Alloy 52","volume":"397","year":"2010"},{"abstractinfo":"The spatial distribution of carbonitride particles in the simulated coarse-grained <span style=\"color:red\">heat-affected</span> <span style=\"color:red\">zone</span> (HAZ) of Nb-Ti microalloyed thermomechanical control-processed (TMCP) steels was investigated using a scanning transmission electron microscope (STEM). It was found that the particles in quenched coarse-grained HAZ were frequently distributed in a nonuniform way, forming clusters and arrays of particles. This nonhomogeneity is defined by the grouping tendency of particles and described by the closeness of the average number density (the mean particle number per unit area) to the average local number density (the mean particle number per unit area, excluding the examined areas without particles). A high concentration of Nb (0.04 mass pet in this article) promoted the formation of carbonitride particle arrays and clusters because of its high segregation tendency at grain and subgrain boundaries during the cooling of a slab. Some of these particles remain undissolved at the peak temperature of a welding thermocycle and may result in sympathetic nucleation of new particles on them. The effectiveness of the particle groups to restrict grain growth is discussed.","authors":[],"categoryName":"|","doi":"","fpage":"4031","id":"366413b9-c0db-4f3b-8ba1-a206f8344e46","issue":"12","journal":{"abbrevTitle":"MAMTAMAMS","id":"3c00bd0a-9b64-4f42-89c3-0e640883446c","issnPpub":"1073-5623","publisherId":"MAMTAMAMS","title":"Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science"},"keywords":[{"id":"5b15dce7-e076-426b-ba7a-2e128d08fcf0","keyword":"weld thermal cycles;microalloyed steels;hsla steels;growth;nb","originalKeyword":"weld thermal cycles;microalloyed steels;hsla steels;growth;nb"}],"language":"en","publisherId":"1073-5623_1996_12_1","title":"Nonuniform distribution of carbonitride particles and its effect on prior austenite grain size in the simulated coarse-grained <span style=\"color:red\">heat-affected</span> <span style=\"color:red\">zone</span> of thermomechanical control-processed steels","volume":"27","year":"1996"},{"abstractinfo":"Abstract: In this paper, H13 powder is cladded on P20 base during continuous CO2 laser, the influence of processing technologies such as the laser power is analyzed. The 3-D model of synchronous powder feeding is established under Gauss <span style=\"color:red\">heat</span> source, the simulation results are compared with the experimental data. The results show that the temperature field and the size of <span style=\"color:red\">heat</span> <span style=\"color:red\">affected</span> <span style=\"color:red\">zone</span> are <span style=\"color:red\">affected</span> by laser power. In the <span style=\"color:red\">heat</span> <span style=\"color:red\">affected</span> <span style=\"color:red\">zone</span>, experimental sizes are compared with simulative sizes, the average errors in width and in depth are 15% and 4.5%, respectively.","authors":[{"authorName":"LUO Fang","id":"8e701ab2-1194-4a0e-a6aa-2072a6508129","originalAuthorName":"LUO Fang"},{"authorName":"YAO Jianhua","id":"248f01b7-4ece-460e-8b00-2c3fa9c55027","originalAuthorName":"YAO Jianhua"},{"authorName":"HU Xiaxia","id":"273fb6e7-635b-48fe-8c4c-e8abee15f81b","originalAuthorName":"HU Xiaxia"},{"authorName":"CHAI Guozhong","id":"f5320e28-5262-495c-ab90-547eeaa6a1db","originalAuthorName":"CHAI Guozhong"}],"categoryName":"|","doi":"","fpage":"73","id":"d11104ff-0fc2-4897-a7fb-4804c19feb87","issue":"1","journal":{"abbrevTitle":"GTYJXBYWB","coverImgSrc":"journal/img/cover/GTYJXBEN.jpg","id":"1","issnPpub":"1006-706X","publisherId":"GTYJXBYWB","title":"钢铁研究学报(英文版)"},"keywords":[],"language":"en","publisherId":"1006-706X_2011_1_1","title":"Effect of Laser Power on the Cladding Temperature Field and the <span style=\"color:red\">Heat</span> <span style=\"color:red\">Affected</span> <span style=\"color:red\">Zone</span>","volume":"18","year":"2011"},{"abstractinfo":"Electronbeam (EB) welding was used in T250 maraging steel, microstructures of both base material and <span style=\"color:red\">heat</span> <span style=\"color:red\">affected</span> <span style=\"color:red\">zone</span> (HAZ) were investigated by optical microscopy (OM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and microhardness was tested. The results showed that during EB welding, the HAZ of T250 maraging steel exhibited a continuous gradient structure. The microstructure of the entire HAZ, from fusion line, could be divided into four zones: fusion <span style=\"color:red\">zone</span>, overheated <span style=\"color:red\">zone</span>, transition <span style=\"color:red\">zone</span>, and hardened <span style=\"color:red\">zone</span>. The microhardness showed a distinct regularity in each area. The softest region was the fusion <span style=\"color:red\">zone</span>, whereas the hardest was the hardened <span style=\"color:red\">zone</span>. In the overheated <span style=\"color:red\">zone</span>, the hardness increased as the grain size decreased. Furthermore, in the transition <span style=\"color:red\">zone</span>, the hardness level dropped noticeably. The peak temperature during the thermal cycle had a great influence on the formation of reverted austenite and dissolution of the precipitated particles, which contributed a lot to the microstructure and hardness of this material.","authors":[{"authorName":"MO Defeng","id":"d1f38126-dfd0-4f81-a33e-dec8ecec4532","originalAuthorName":"MO Defeng"},{"authorName":"HU Zhengfei","id":"0638673b-e136-41ea-9ef6-120c0dfad320","originalAuthorName":"HU Zhengfei"},{"authorName":"CHEN Shujuan","id":"9e3be66d-4d62-44de-8689-f3f701f1e789","originalAuthorName":"CHEN Shujuan"},{"authorName":"WANG Chunxu","id":"48cb860f-95a4-4d0b-af35-37836653569e","originalAuthorName":"WANG Chunxu"},{"authorName":"HE Guoqiu","id":"1472124e-c85e-40ee-a922-cbb4432cf798","originalAuthorName":"HE Guoqiu"}],"categoryName":"|","doi":"","fpage":"87","id":"15538737-5f8b-40fd-8790-f3070a599c55","issue":"1","journal":{"abbrevTitle":"GTYJXBYWB","coverImgSrc":"journal/img/cover/GTYJXBEN.jpg","id":"1","issnPpub":"1006-706X","publisherId":"GTYJXBYWB","title":"钢铁研究学报(英文版)"},"keywords":[{"id":"0890d0a5-5214-4bc1-9883-f1547a1f1f72","keyword":"T250 maraging steel;electronbeam weld;microstructure;microhardness","originalKeyword":"T250 maraging steel;electronbeam weld;microstructure;microhardness"}],"language":"en","publisherId":"1006-706X_2009_1_3","title":"Microstructure and Hardness of T250 Maraging Steel in <span style=\"color:red\">Heat</span> <span style=\"color:red\">Affected</span> <span style=\"color:red\">Zone</span>","volume":"16","year":"2009"},{"abstractinfo":"Austenite grain sizes in the <span style=\"color:red\">heat</span> <span style=\"color:red\">affected</span> <span style=\"color:red\">zone</span> (HAZ) of a high <span style=\"color:red\">heat</span> input welded Zr-Ti bearing microalloyed steel are measured under different welding conditions simulated by a Gleeble-1500 thermal-mechanical simulator. The austenite grain growth is divided into two regimes in terms of temperature. When the temperature is lower than 1250 ℃ where the pinning effect of precipitates is strong, the austenite grain size increases slowly with increasing peak temperature, but it increases drastically when the temperature is higher than 1250 ℃ where the pinning effect of precipitates is weak. Based on the experimental measurements, an analytical model for predicting the austenite grain size in the <span style=\"color:red\">heat</span> <span style=\"color:red\">affected</span> <span style=\"color:red\">zone</span> is derived. Model predictions indicate that the initial grain size has little effect on the final one, and the grain growth depends mainly on <span style=\"color:red\">heat</span> input and peak temperature as well as growth activation energy and exponent. With the use of the model, the width of coarse grained <span style=\"color:red\">heat</span> <span style=\"color:red\">affected</span> <span style=\"color:red\">zone</span> (CGHAZ) for a thick plate is predicted.","authors":[{"authorName":"ZHENG Lei","id":"9a8423cd-99f6-4725-986f-d8eb85bcf3c2","originalAuthorName":"ZHENG Lei"},{"authorName":"YUAN Ze-xi","id":"8f9755c5-8060-4985-8776-704f88acb647","originalAuthorName":"YUAN Ze-xi"},{"authorName":"SONG Shen-hua","id":"348a982c-d9bd-43ee-a104-f6137229799b","originalAuthorName":"SONG Shen-hua"},{"authorName":"XI Tian-hui","id":"46fe1c22-1f35-4457-9414-42b01f521422","originalAuthorName":"XI Tian-hui"},{"authorName":"WANG Qian","id":"c8a0e25b-af0c-44e0-b7e4-fdc0365d4645","originalAuthorName":"WANG Qian"}],"categoryName":"|","doi":"","fpage":"73","id":"8cd2f506-d7f5-49ba-a2fb-509ff189b5c4","issue":"2","journal":{"abbrevTitle":"GTYJXBYWB","coverImgSrc":"journal/img/cover/GTYJXBEN.jpg","id":"1","issnPpub":"1006-706X","publisherId":"GTYJXBYWB","title":"钢铁研究学报(英文版)"},"keywords":[{"id":"3d0f1c57-9ae3-4e99-a766-0b29a0b9c2e5","keyword":"welding ","originalKeyword":"welding "},{"id":"fafbf16b-7a79-46f9-9f02-9a99d0c1ce5e","keyword":"  high <span style=\"color:red\">heat</span> input ","originalKeyword":"  high heat input "},{"id":"7618c6a5-8c84-4192-8247-e1c1c89ea13b","keyword":"  microstructure","originalKeyword":"  microstructure"}],"language":"en","publisherId":"1006-706X_2012_2_9","title":"Austenite Grain Growth in <span style=\"color:red\">Heat</span> <span style=\"color:red\">Affected</span> <span style=\"color:red\">Zone</span> of Zr-Ti Bearing Microalloyed Steel","volume":"19","year":"2012"},{"abstractinfo":"A model of cleavage fracture in granular bainite was developed. It involves two-dimensional elastic interaction between a main crack and multiple microcracks induced by the existence of martensite-austenite (M-A) particles in front of the main crack. A factor of fracture toughness reduction due to the presence of M-A particles (f(MA)) was introduced to describe the effect of M-A particles on the stress intensity factor at the tip of the main crack. The values of f(MA) can be expressed as the inverse of the amplification coefficient of the stress intensity factor as a result from the interference between microcracks and a main crack in brittle materials. An equation was derived which describes the relationship between fracture toughness and microstructural variables, including the influence of the effective grain size as well as the average width and interspacing of M-A particles. Moreover, simple linear regression equations were used to check the validation of the present model for predicting cleavage fracture toughness in simulated coarse-grained <span style=\"color:red\">heat-affected</span> zones of quenched and tempered high-strength low-alloyed steels.","authors":[],"categoryName":"|","doi":"","fpage":"179","id":"2eab5f71-708d-461b-b103-d938c28f738c","issue":"2","journal":{"abbrevTitle":"JIJSAMAME","id":"51c5f0f5-da97-4a22-87e1-0c136e7b9710","issnPpub":"1340-8046","publisherId":"JIJSAMAME","title":"Jsme International Journal Series a-Solid Mechanics and Material Engineering"},"keywords":[{"id":"436a23c8-3d22-45f4-92b4-8d831ec64a33","keyword":"cleavage fracture;granular bainite;CGHAZ;HSLA steels;martensite-austenite particles;toughness;phase steels;microstructure;deformation;toughness;behavior;metals;welds;crack","originalKeyword":"cleavage fracture;granular bainite;CGHAZ;HSLA steels;martensite-austenite particles;toughness;phase steels;microstructure;deformation;toughness;behavior;metals;welds;crack"}],"language":"en","publisherId":"1340-8046_1997_2_1","title":"Cleavage fracture model for granular bainite in simulated coarse-grained <span style=\"color:red\">heat-affected</span> zones of high-strength low-alloyed steels","volume":"40","year":"1997"},{"abstractinfo":"The structural change in <span style=\"color:red\">heat</span> <span style=\"color:red\">affected</span> <span style=\"color:red\">zone</span>(HAZ)and its influence on properties of welded white cast iron have been investigated by means of thermal cycle simulation technique.The structure of the white cast iron at peak temperature 800℃ was examined as cementite in pearlitic matrix,of which the hardness and impact toughness are the lowest,while the struc- ture after cyclic heating at high peak temperature is mainly cementite together with twin martensite,of which the hardness and impact toughness are rather higher.The phase bounda- ries in the structure of low hardness are smooth and regular as well as with fine precipitates. Both the cleavage and interphase fracture were revealed in the structure of low hardness,while the transgranular fracture was found in those areas of higher hardness.","authors":[{"authorName":"ZOU Zengda WANG Yong REN Dengyi Shandong Polytechnic University","id":"4c377f77-b9cc-4eae-8191-620ae9ef36c4","originalAuthorName":"ZOU Zengda WANG Yong REN Dengyi Shandong Polytechnic University"},{"authorName":"Jinan","id":"0f1df04c-d8a6-468a-9094-60c0e9877b52","originalAuthorName":"Jinan"},{"authorName":"China","id":"51cb6795-cf36-42ba-a6f6-d3d9064bd650","originalAuthorName":"China"}],"categoryName":"|","doi":"","fpage":"191","id":"471d6719-de9d-470a-b0b5-893275a06c0f","issue":"9","journal":{"abbrevTitle":"JSXBYWB","coverImgSrc":"journal/img/cover/amse.jpg","id":"49","issnPpub":"1006-7191","publisherId":"JSXBYWB","title":"金属学报(英文版)"},"keywords":[{"id":"b06f3383-553b-4ee9-bd3f-2b6c280883a5","keyword":"white cast iron","originalKeyword":"white cast iron"},{"id":"2ae96299-5db1-4bfc-bcc4-bfd03cbb5d4e","keyword":"null","originalKeyword":"null"},{"id":"81bc3a58-70ac-4e5c-938c-0108cb820da7","keyword":"null","originalKeyword":"null"}],"language":"en","publisherId":"1006-7191_1991_9_3","title":"STRUCTURAL CHANGE IN <span style=\"color:red\">HEAT</span> <span style=\"color:red\">AFFECTED</span> <span style=\"color:red\">ZONE</span> AND ITS INFLUENCE ON PROPERTIES OF WELDED WHITE CAST IRON","volume":"4","year":"1991"},{"abstractinfo":"The transformation behavior and microstructure development in the <span style=\"color:red\">heat</span> <span style=\"color:red\">affected</span> <span style=\"color:red\">zone</span>\n(HAZ) of 800MPa grade ultra fine structured steel was investigated. It was found that\nthe HAZ has intermediate temperature transformation characteristics in a wide range\nof cooling rates, with the bainite sheaves consisting of bainite ferrite plates without\ncarbide precipitation and retained austenite in the fast cooling regime. At relatively\nhigh cooling rates, which corresponded to low <span style=\"color:red\">heat</span> inputs, the hardness of the simulated\nHAZ was above that of the base metal. When the cooling rate was below 9±C/s, the\nwelding HAZ would have an obvious softening. The analysis of transformation rates\nin continuous cooling processes was completed by numerical differential method. The\nresult indicated that the microstructure transformation rate of the HAZ in 800MPa\ngrade ultra fine structured steel changed sharply to slow speeds when the cooling time\nt8=5 is longer than 7s.","authors":[{"authorName":"J.B. Liu","id":"6f492e51-aaf4-43c0-b240-db6486fc77b8","originalAuthorName":"J.B. Liu"},{"authorName":" L.J. Hu","id":"198fdec7-f071-47a3-9867-486af3df6cd3","originalAuthorName":" L.J. Hu"},{"authorName":" Y.T. Wang","id":"25ee2849-ca19-4544-8c21-07cbf12d4590","originalAuthorName":" Y.T. Wang"},{"authorName":" Z.Q. Liu","id":"c4d3907d-3043-4704-b9c4-bfe16e1b50ff","originalAuthorName":" Z.Q. Liu"},{"authorName":" K. Miao ","id":"cd0fd399-0710-43b9-a391-3fa2cb1694a2","originalAuthorName":" K. Miao "},{"authorName":"  Z.L. Tian","id":"1f22c372-9d92-42e1-ba53-56f2c7de2210","originalAuthorName":"  Z.L. Tian"}],"categoryName":"|","doi":"","fpage":"238","id":"0124eebb-763b-4f88-a735-fc7f2f388c7d","issue":"3","journal":{"abbrevTitle":"JSXBYWB","coverImgSrc":"journal/img/cover/amse.jpg","id":"49","issnPpub":"1006-7191","publisherId":"JSXBYWB","title":"金属学报(英文版)"},"keywords":[{"id":"c09051dc-566f-4d7c-b381-6428da92621a","keyword":"ultra fine structured steel","originalKeyword":"ultra fine structured steel"},{"id":"1e64ae5c-63ec-43f8-9487-852c56e0665b","keyword":"null","originalKeyword":"null"},{"id":"7aec455d-31b2-4558-aeee-4f80161e9499","keyword":"null","originalKeyword":"null"},{"id":"20d17975-b61f-43a0-baec-ed5ea22e5f59","keyword":"null","originalKeyword":"null"},{"id":"0ae9a0b8-9363-4a65-9fc1-8617f5bf8ae3","keyword":"null","originalKeyword":"null"}],"language":"en","publisherId":"1006-7191_2004_3_1","title":"Microstructure Transformation in the Welding <span style=\"color:red\">Heat</span> <span style=\"color:red\">Affected</span> <span style=\"color:red\">Zone</span> of 800MPa Grade Ultra Fine Structured Steel","volume":"17","year":"2004"}],"totalpage":199,"totalrecord":1990}