{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"Gleeble1500 thermo-mechanical simulation machine is considered to be the first grade equipment in materials' research. However, it is seldom used in superplastic research. Perhaps this is because its specimen's heating method is not suitable to get large elongation. Elongation is an important parameter to evaluate <span style=\"color:red\">superplasticity</span>, but some other parameters such as the relationship between stress and strain rate are more important than elongation-it is an  essential property to <span style=\"color:red\">superplasticity</span>. The stress-strain rate relationship can be very easily and very accu-  rately got with Gleeble machine than with some other simlar equipment, and the relationship between microstructure and superplastic deformation is more easily examined with Gleeble. Present authors have got some new achievement in anisotropy, heterogeneity of superplastic   deformation, and first put forward the regulation of dynamic equilibrium in microstructural evolution during superplastic deformation. All of these have been concluded  from the experimental results mainly through Gleeble as well as the microstructural examination.The research work has got the support of National Natural Science Foundation and some international cooperation. Some theoretic and experimental results have been used in the practice of superplastic forming. Obvious effect of reducing cost and  improving quality of formed parts has been achieved.","authors":[{"authorName":"B. Z. Bai X.J.Sun and L.Y.Yang 1) Department of Materials Science and Engineering","id":"79f08051-2e01-4589-b723-a0bb2c8d47f8","originalAuthorName":"B. Z. Bai X.J.Sun and L.Y.Yang 1) Department of Materials Science and Engineering"},{"authorName":" Tsinghua University","id":"42cadf31-eda4-4b94-a575-564faa32ff2c","originalAuthorName":" Tsinghua University"},{"authorName":" Beijing 100084","id":"9fd7316f-0ef8-4410-b514-4b13798d7d46","originalAuthorName":" Beijing 100084"},{"authorName":" China 2) Beijing Research Institute of Mechanical and Electrical Technology","id":"110edc35-acf4-43ef-a8cd-75ea1b997d07","originalAuthorName":" China 2) Beijing Research Institute of Mechanical and Electrical Technology"},{"authorName":" Beijing 100083","id":"dbf39626-af33-4cd4-86ba-92af8e670d48","originalAuthorName":" Beijing 100083"},{"authorName":" China","id":"06cc6bb8-8896-4e5c-89f9-a91932c4d890","originalAuthorName":" China"}],"categoryName":"|","doi":"","fpage":"514","id":"afc4bb96-e5f2-4edf-b6d9-fa3f22472b82","issue":"2","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":"6297f5b0-b59b-4900-a4e6-58e4af1b4cbc","keyword":"thermo-mechanical simulation","originalKeyword":"thermo-mechanical simulation"},{"id":"0e550a64-0fe7-4601-975c-44651037453e","keyword":"null","originalKeyword":"null"}],"language":"en","publisherId":"1006-7191_2000_2_34","title":"APPLICATION OF GLEEBLE 1500 ON <span style=\"color:red\">SUPERPLASTICITY</span>","volume":"13","year":"2000"},{"abstractinfo":"Ti-24Nb-4Zr-8Sn, abbreviated as Ti2448 from its chemical composition in weight percent, is a multifunctional &beta; type titanium alloy with body centered cubic (bcc) crystal structure, and its highly localized plastic deformation behavior contributes significantly to grain refinement during conventional cold processing. In the paper, the nanostructured (NS) alloy with grain size less than 50 nm produced by cold rolling has been used to investigate its superplastic deformation behavior by uniaxial tensile tests at initial strain rates of 1.5&times;10<sup>-2</sup>, 1.5&times;10<sup>-3</sup> and 1.6&times;10<sup>-4</sup> s<sup>-1</sup> and temperatures of 600, 650 and 700&deg;C. The results show that, in comparison with the coarse-grained alloy with size of 50 &sup1;m, the NS alloy has better <span style=\"color:red\">superplasticity</span> with elongation up to ~275% and ultimate strength of 50-100 MPa. Strain rate sensitivity (<em>m</em>) of the NS alloy is 0.21, 0.30 and 0.29 for 600, 650 and 700&deg;C, respectively. These results demonstrate that grain refinement is a valid way to enhance the <span style=\"color:red\">superplasticity</span> of Ti2448 alloy.","authors":[{"authorName":"M.J. Xiao","id":"aea62d26-4fa8-4135-8a6f-da50af8f52ca","originalAuthorName":"M.J. Xiao"}],"categoryName":"|","doi":"","fpage":"1099","id":"9f2a8cc4-0893-4ccc-8f8d-04c1a4d28be4","issue":"12","journal":{"abbrevTitle":"CLKXJSY","coverImgSrc":"journal/img/cover/JMST.jpg","id":"11","issnPpub":"1005-0302 ","publisherId":"CLKXJSY","title":"材料科学技术（英文）"},"keywords":[{"id":"ac4db4f1-8f5c-4064-a49a-ce1d982eb559","keyword":"Titanium alloy","originalKeyword":"Titanium alloy"}],"language":"en","publisherId":"1005-0302_2011_12_9","title":"<span style=\"color:red\">Superplasticity</span> of Ti2448 Alloy with Nanostructured Grains","volume":"27","year":"2011"},{"abstractinfo":"Ti-24Nb-4Zr-8Sn, abbreviated as Ti2448 from its chemical composition in weight percent, is a multifunctional beta type titanium alloy with body centered cubic (bcc) crystal structure, and its highly localized plastic deformation behavior contributes significantly to grain refinement during conventional cold processing. In the paper, the nanostructured (NS) alloy with grain size less than 50 nm produced by cold rolling has been used to investigate its superplastic deformation behavior by uniaxial tensile tests at initial strain rates of 1.5x10(-2), 1.5x10(-3) and 1.6x10(-4) s(-1) and temperatures of 600, 650 and 700 degrees C. The results show that, in comparison with the coarse-grained alloy with size of 50 mu m, the NS alloy has better <span style=\"color:red\">superplasticity</span> with elongation up to,similar to 275% and ultimate strength of 50-100 MPa. Strain rate sensitivity (m) of the NS alloy is 0.21, 0.30 and 0.29 for 600, 650 and 700 degrees C, respectively. These results demonstrate that grain refinement is a valid way to enhance the <span style=\"color:red\">superplasticity</span> of Ti2448 alloy.","authors":[],"categoryName":"|","doi":"","fpage":"1099","id":"aaae15c5-ddbb-4d86-8a52-a16b1ee66e32","issue":"12","journal":{"abbrevTitle":"CLKXJSY","coverImgSrc":"journal/img/cover/JMST.jpg","id":"11","issnPpub":"1005-0302 ","publisherId":"CLKXJSY","title":"材料科学技术（英文）"},"keywords":[{"id":"cf6d5732-5f86-4662-b8d3-74ea37ded36f","keyword":"Titanium alloy;bcc crystal;<span style=\"color:red\">Superplasticity</span>;Nanostructured grain;severe plastic-deformation;ti-6al-4v alloy;titanium-alloy;enhanced;<span style=\"color:red\">superplasticity</span>;phase-transformation;stainless-steel;behavior;evolution;nickel;size","originalKeyword":"Titanium alloy;bcc crystal;Superplasticity;Nanostructured grain;severe plastic-deformation;ti-6al-4v alloy;titanium-alloy;enhanced;superplasticity;phase-transformation;stainless-steel;behavior;evolution;nickel;size"}],"language":"en","publisherId":"1005-0302_2011_12_1","title":"<span style=\"color:red\">Superplasticity</span> of Ti2448 Alloy with Nanostructured Grains","volume":"27","year":"2011"},{"abstractinfo":"The superplastic flow characteristics of hot extruded MB26 Mg alloy under the conditions of tension are studied. The effects of deformation temperature and strain rate on <span style=\"color:red\">superplasticity</span> are analyzed. On the other hand, the superplastic extrusion of MB26 Mg alloy is also studied.","authors":[{"authorName":"Fuxiao CHEN","id":"afdaca43-933e-41b5-92c2-944897f6e18a","originalAuthorName":"Fuxiao CHEN"},{"authorName":" Juanhua SU","id":"d94f0153-1abc-4993-a426-2067c766966f","originalAuthorName":" Juanhua SU"},{"authorName":" Yunlin YANG","id":"ff8375cf-cc91-444b-98f1-aa6bbc20d7b1","originalAuthorName":" Yunlin YANG"},{"authorName":" Hongtao MA","id":"60b04f2a-0271-4195-8240-47f661d3ce9f","originalAuthorName":" Hongtao MA"}],"categoryName":"|","doi":"","fpage":"147","id":"1b5f2b09-7409-4ed8-86f4-2604563fe10d","issue":"1","journal":{"abbrevTitle":"CLKXJSY","coverImgSrc":"journal/img/cover/JMST.jpg","id":"11","issnPpub":"1005-0302 ","publisherId":"CLKXJSY","title":"材料科学技术（英文）"},"keywords":[],"language":"en","publisherId":"1005-0302_2001_1_75","title":"Research on <span style=\"color:red\">superplasticity</span> and superplastic extrusion of MB26 magnesium alloy","volume":"17","year":"2001"},{"abstractinfo":"The <span style=\"color:red\">superplasticity</span> and diffusion bonding of IN718 superalloy were studied in this article. The strain rate sensitivity index m was obtained at different temperatures and various initial strain rates using the tensile speed mutation method; m reached its maximum value 0.53 at an initial strain rate of 1&times;10-4s-1 at 1253K. The diffusion bonding parameters, including the bonding temperature T, pressure p, and time t, affected the mechanism of joints. When the bonded specimen with 25&mu;m thick nickel foil interlayer was tensile at room temperature, the shear fracture of the joints with nickel foil interlayer took place at the IN718 part. Microstructure study was carried out with the bonded samples. The microstructure shows an excellent bonding at the interfaces. The optimum parameters for the diffusion bonding are: T = 1273-1323K, p = 20-30MPa, t = 45-60min.","authors":[{"authorName":"W.B. Han","id":"9fe0b331-cb94-4718-b6c9-3942648e7f1d","originalAuthorName":"W.B. Han"},{"authorName":" K.F. Zhang","id":"95ccf81c-599d-43c5-9a18-cf95d0432c6f","originalAuthorName":" K.F. Zhang"},{"authorName":" B. Wang","id":"6ea82341-ac11-49dc-b1d3-329fa661b42d","originalAuthorName":" B. Wang"},{"authorName":"  D.Z. Wu","id":"9a2b9743-fc5a-406e-a88e-48e43783804f","originalAuthorName":"  D.Z. Wu"}],"categoryName":"|","doi":"","fpage":"307","id":"dfdd462b-7033-4d24-83b0-66b822995cfa","issue":"4","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":"5511b3e6-3a63-4b15-97f8-993aaaa5ae20","keyword":"<span style=\"color:red\">superplasticity</span>","originalKeyword":"superplasticity"},{"id":"a73ed993-0405-4872-8e7f-80b5bc662a5f","keyword":"null","originalKeyword":"null"},{"id":"c2ac2043-f23e-4c69-89d7-44fa0e2c04d2","keyword":"null","originalKeyword":"null"},{"id":"1d0abb96-28e5-4e92-9e37-aabd51c2185c","keyword":"null","originalKeyword":"null"}],"language":"en","publisherId":"1006-7191_2007_4_2","title":"<span style=\"color:red\">Superplasticity</span> and Diffusion Bonding of IN718 Superalloy","volume":"20","year":"2007"},{"abstractinfo":"Commercial 2219Al-T6 alloy plates were friction stir processed (FSPed) at a rotation rate of 400 rpm and a traverse speed of 100 mm/mm n in water and air, producing two fine-grained 2219Al samples with average grain sizes of 1.0 and 2.1 mu m, respectively. The 1.0 and 2.1 mu m-2219Al retained fine-grained microstructure during annealing treatment at temperatures up to 400 and 425 degrees C, respectively, above which abnormal grain growth occurred. <span style=\"color:red\">Superplasticity</span> was observed in 1.0 mu m-2219Al within the medium temperature range of 350-425 degrees C and a maximum ductility of 450% was obtained at 400 degrees C and 3 x 10(-4) s(-1). Increasing the grain size from 1.0 to 2.1 mu m resulted in a slight increase in the thermal stability, but did not enhance the <span style=\"color:red\">superplasticity</span> of the FSP 2219Al. The relatively low <span style=\"color:red\">superplasticity</span> in the FSP fine-grained 2219Al was attributed to unstable grain structure because the pining Al(2)Cu particles were easily coarsened at high temperatures. (C) 2010 Elsevier B.V. All rights reserved.","authors":[],"categoryName":"|","doi":"","fpage":"4191","id":"b707aa23-ecae-49f4-b3c9-aaa76a76ed46","issue":"16-17","journal":{"abbrevTitle":"MSAEAMPMAP","id":"29fa6a83-07f2-4d3a-af3e-fac686227352","issnPpub":"0921-5093","publisherId":"MSAEAMPMAP","title":"Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing"},"keywords":[{"id":"b2d21f3c-2873-4365-bffc-874db93f0eaf","keyword":"<span style=\"color:red\">Superplasticity</span>;Aluminum alloy;Friction stir processing;Grain growth;strain rate <span style=\"color:red\">superplasticity</span>;mg-sc alloy;low-temperature;<span style=\"color:red\">superplasticity</span>;severe plastic-deformation;abnormal grain-growth;zr;alloy;aluminum-alloys;7075al alloy;microstructure;evolution","originalKeyword":"Superplasticity;Aluminum alloy;Friction stir processing;Grain growth;strain rate superplasticity;mg-sc alloy;low-temperature;superplasticity;severe plastic-deformation;abnormal grain-growth;zr;alloy;aluminum-alloys;7075al alloy;microstructure;evolution"}],"language":"en","publisherId":"0921-5093_2010_16-17_2","title":"Investigation of <span style=\"color:red\">superplasticity</span> in friction stir processed 2219Al alloy","volume":"527","year":"2010"},{"abstractinfo":"After exploring the influence of stress,cold-rolling reduction and cooling rate on transforma- tion induced strain,the transformation induced <span style=\"color:red\">superplasticity</span> forming technique of the 18Ni maraging steel(2450 MPa)was developed.Through 14 times γα′ cyclic transformation,the limited elongation of 320% can be obtained in 60% cold-rolled specimen.TEM observation revealed that the morphology of stress induced martensite is massive.","authors":[{"authorName":"YIN Zhongda Harbin Institute of Technology","id":"06dd4b36-d5a0-4f27-b261-691fe3c33c6e","originalAuthorName":"YIN Zhongda Harbin Institute of Technology"},{"authorName":"Harbin","id":"58e0b1a5-b097-4aa6-81b0-f6be881049c4","originalAuthorName":"Harbin"},{"authorName":"ChinaZHOU Yongkang Shanghai Centrifugal Machinery Research Institute","id":"d74cf2b7-2a93-4420-a7df-218fa0b4292b","originalAuthorName":"ChinaZHOU Yongkang Shanghai Centrifugal Machinery Research Institute"},{"authorName":"Shanghai","id":"098575cd-5007-48a3-812f-f449ce993f75","originalAuthorName":"Shanghai"},{"authorName":"China","id":"3e187526-74db-41c7-ac6f-943efd06d903","originalAuthorName":"China"}],"categoryName":"|","doi":"","fpage":"278","id":"2adae069-1f1d-4ff1-8f8e-685fc5c6df38","issue":"4","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":"c01e294c-7343-4fa8-95d3-a9ba09c9cd25","keyword":"maraging steel","originalKeyword":"maraging steel"},{"id":"c4c05f7b-8e67-467a-8b5c-bc0850e310ad","keyword":"null","originalKeyword":"null"},{"id":"f59e383b-e7ce-4f9d-b748-d01966ff1aea","keyword":"null","originalKeyword":"null"}],"language":"en","publisherId":"1006-7191_1992_4_13","title":"TRANSFORMATION INDUCED <span style=\"color:red\">SUPERPLASTICITY</span> IN 18Ni MARAGING STEEL","volume":"5","year":"1992"},{"abstractinfo":"The <span style=\"color:red\">superplasticity</span> of an Al(2)O(3)p/6061Al composite, fabricated by powder metallurgy techniques, has been investigated. Instead of any special thermomechanical processing or hot rolling, simple hot extrusion has been employed to obtain a fine grained structure before superplastic testing. Superplastic tensile tests were performed at strain rates ranging from 10(-2) to 10(-4) s(-1) and at temperatures from 833 to 893 K. A maximum elongation of 200% was achieved at a temperature of 853 K and an initial strain rate of 1.67x10(-3) s(-1). The highest value obtained for the strain rate sensitivity index (m) was 0.32. Differential scanning calorimeter was used to ascertain the possibility of any partial melting in the vicinity of optimum superplastic temperature. These results suggested that no liquid phase existed where maximum elongation was achieved and deformation took place entirely in the solid state.","authors":[{"authorName":"Lihong HAN","id":"20885929-f297-46ca-a2ac-7565a8917f09","originalAuthorName":"Lihong HAN"},{"authorName":" Jitai NIU","id":"e16ad3b1-3db7-484b-b54e-a82bebfc4898","originalAuthorName":" Jitai NIU"},{"authorName":" Darning JIANG","id":"546f404b-fb44-4e19-b4ca-74d3287238eb","originalAuthorName":" Darning JIANG"},{"authorName":" Tsunernichi Imai","id":"e7a52520-6e86-4a8a-9488-328ae4ddbcfd","originalAuthorName":" Tsunernichi Imai"}],"categoryName":"|","doi":"","fpage":"653","id":"cb693615-48ed-4f8d-ac0a-4b2b7b4f94ad","issue":"6","journal":{"abbrevTitle":"CLKXJSY","coverImgSrc":"journal/img/cover/JMST.jpg","id":"11","issnPpub":"1005-0302 ","publisherId":"CLKXJSY","title":"材料科学技术（英文）"},"keywords":[],"language":"en","publisherId":"1005-0302_2001_6_11","title":"<span style=\"color:red\">Superplasticity</span> in an aluminum alloy 6061/Al(2)O(3)p composite","volume":"17","year":"2001"},{"abstractinfo":"Friction stir processing was applied to hot-rolled Mg-Zn-Y-Zr alloy to produce a fine-grained structure 4.5 mu m in size with fine, uniformly distributed Mg(3)Zn(3)Y(2) particles and predominant high-angle grain boundaries (HAGBs) of 91%. A maximum <span style=\"color:red\">superplasticity</span> of 1110% was achieved at a high strain rate of 1 x 10(-2) s(-1) and 450 degrees C. The superior <span style=\"color:red\">superplasticity</span> at this high strain rate is attributed to the excellent thermal stability of the fine-grained structure and the high percentage of HAGBs. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.","authors":[],"categoryName":"|","doi":"","fpage":"335","id":"5deeea79-eb68-41b9-8c00-681603ab9a4e","issue":"4","journal":{"abbrevTitle":"SM","id":"37a994ff-74c6-4c39-a38b-4d9dcf2c8354","issnPpub":"1359-6462","publisherId":"SM","title":"Scripta Materialia"},"keywords":[{"id":"3b8e9aeb-2662-4418-a19b-0ba00a30f4e3","keyword":"<span style=\"color:red\">Superplasticity</span>;Magnesium alloys;Friction stir processing;Microstructure;Grain boundaries;magnesium alloy;microstructural evolution;powder-metallurgy;behavior;deformation;phase;particles","originalKeyword":"Superplasticity;Magnesium alloys;Friction stir processing;Microstructure;Grain boundaries;magnesium alloy;microstructural evolution;powder-metallurgy;behavior;deformation;phase;particles"}],"language":"en","publisherId":"1359-6462_2011_4_3","title":"Achieving high strain rate <span style=\"color:red\">superplasticity</span> in Mg-Zn-Y-Zr alloy produced by friction stir processing","volume":"65","year":"2011"},{"abstractinfo":"Cast 7075Al alloys under as-cast and homogenized conditions were subjected to single-pass friction stir processing (FSP). FSP converted the coarse as-cast structure to the fine-grained structure with a grain size of 2.5-3.2 mu m. A pre-homogenization prior to FSP was beneficial to the generation of a more uniform microstructure in the FSP sample with smaller particles and grains. Both FSP samples exhibited high strain rate <span style=\"color:red\">superplasticity</span> at 1 x 10(-2) s(-1) and 450 A degrees C. Cavitation developed at the particles and the grain triple junctions. The <span style=\"color:red\">superplasticity</span> of the FSP sample was significantly improved by the pre-homogenization prior to FSP, with a maximum <span style=\"color:red\">superplasticity</span> of 890% being observed, due to reduced particle size. The analyses of the superplastic data and scanning electronic microscopic (SEM) examinations indicated that grain boundary sliding is the main deformation mechanism for the FSP 7075Al.","authors":[],"categoryName":"|","doi":"","fpage":"2647","id":"8526910d-b29f-4d26-874f-155f5a602f82","issue":"10","journal":{"abbrevTitle":"JOMS","id":"d451b714-34b6-45ff-beb7-4cb8e1a8bb9d","issnPpub":"0022-2461","publisherId":"JOMS","title":"Journal of Materials Science"},"keywords":[{"id":"5b045d9d-9fed-41d6-8643-9b4e108b2a27","keyword":"low-temperature <span style=\"color:red\">superplasticity</span>;aluminum-alloys;al;deformation;microstructure;visualization;cavitation;fracture;flow","originalKeyword":"low-temperature superplasticity;aluminum-alloys;al;deformation;microstructure;visualization;cavitation;fracture;flow"}],"language":"en","publisherId":"0022-2461_2009_10_1","title":"Achieving high strain rate <span style=\"color:red\">superplasticity</span> in cast 7075Al alloy via friction stir processing","volume":"44","year":"2009"}],"totalpage":11,"totalrecord":104}