{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"Several coatings including RE mere treated by Laser Rapid Solidification Processing (LRSP). The RE content in the melted surface layer and the surface properties modified by RE and laser treatment on steel were studied. The experimental results show that oversaturated RE was dissolved into the steel surface layer and the steel surface treated by combining RE and LRSP has even higher wear resistance and oxidation resistance than that treated by only LRSP.","authors":[],"categoryName":"|","doi":"","fpage":"76","id":"65f6f11d-72af-4086-a433-d092a6bc2611","issue":"4","journal":{"abbrevTitle":"TONMSOC","id":"9449c409-0c62-400e-a51e-429b454dce51","issnPpub":"1003-6326","publisherId":"TONMSOC","title":"Transactions of Nonferrous Metals Society of China"},"keywords":[{"id":"2d21746d-0f56-4c63-a814-dffec60928e4","keyword":"rare earth;laser treatment;surface modification","originalKeyword":"rare earth;laser treatment;surface modification"}],"language":"en","publisherId":"1003-6326_1997_4_1","title":"Surface modification on steel by rare earth and laser treatment","volume":"7","year":"1997"},{"abstractinfo":"By means of surface mechanical attrition (SMA), a nanostructured surface layer was formed on a pure Fe plate. Microstructure features of various sections in the surface layer, from the strain-free matrix to the treated top surface, were systematically characterized by using X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) observations. Based on the experimental observations, a grain refinement mechanism induced by plastic deformation during the SMA treatment in Fe was proposed. It involves formation of dense dislocation walls (DDWs) and dislocation tangles (DTs) in original grains and in the refined cells (under further straining) as well, transformation of DDWs and DTs into subboundaries with small misorientations separating individual cells or subgrains, and evolution of subboundaries to highly misoriented grain boundaries. Experimental evidences and analysis of the grain refinement mechanism indicate that high strains with a high strain rate are necessary for formation of nanocrystallites during plastic deformation of metals. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.","authors":[],"categoryName":"|","doi":"","fpage":"4603","id":"204030be-6bb9-47b4-9cc8-5f78db6924d7","issue":"18","journal":{"abbrevTitle":"AM","id":"473e1d60-024a-4fd2-8f59-9e3ede87721e","issnPpub":"1359-6454","publisherId":"AM","title":"Acta Materialia"},"keywords":[{"id":"19fe2a49-2f69-42b4-b2f9-a2abb7a17271","keyword":"nanocrystalline materials;iron;grain refinement;microstructure;severe plastic-deformation;grain-size;nanostructured materials;iron;evolution;alloys;microstructure;refinement;ductility;steel","originalKeyword":"nanocrystalline materials;iron;grain refinement;microstructure;severe plastic-deformation;grain-size;nanostructured materials;iron;evolution;alloys;microstructure;refinement;ductility;steel"}],"language":"en","publisherId":"1359-6454_2002_18_1","title":"An investigation of surface nanocrystallization mechanism in Fe induced by surface mechanical attrition treatment","volume":"50","year":"2002"},{"abstractinfo":"A 100 similar to 200 mu m thick Al-enriched surface alloyed layer was formed on an AZ91D Mg alloy subjected to surface mechanical attrition treatment and diffusion coating at temperature as low as 400 degrees C. Transmission electron microscopy observations indicated the formation of a large volume fraction of pearlite-like lamellar microstructure within the surface alloyed layer, which was identified to be Mg17Al12 precipitates (gamma phase) in Mg solid solution matrix. The Al-enriched alloyed layer enhanced the wear resistance of the alloy in comparison with the un-treated AZ91D Mg alloy substrate under the same dry sliding wear condition. Examination of the worn surface indicated that the enhanced wear resistance of the alloyed layer was mainly attributed to the strengthening effect of gamma phase. (C) 2008 Elsevier B.V. All rights reserved.","authors":[],"categoryName":"|","doi":"","fpage":"3947","id":"a02ec97d-99c7-404b-ae9e-db1932f4c0a2","issue":"16","journal":{"abbrevTitle":"S&CT","id":"dcdd8961-efc5-4044-81d0-2ea320551b72","issnPpub":"0257-8972","publisherId":"S&CT","title":"Surface & Coatings Technology"},"keywords":[{"id":"eb924095-2cb0-4e0b-a5f4-4bf720c14d3e","keyword":"magnesium alloy;surface alloying;surface mechanical attrition;treatment (SMAT);wear resistance;magnesium alloy;diffusion;precipitation;morphology;corrosion;layer;iron","originalKeyword":"magnesium alloy;surface alloying;surface mechanical attrition;treatment (SMAT);wear resistance;magnesium alloy;diffusion;precipitation;morphology;corrosion;layer;iron"}],"language":"en","publisherId":"0257-8972_2008_16_1","title":"Surface alloying of an Mg alloy subjected to surface mechanical attrition treatment","volume":"202","year":"2008"},{"abstractinfo":"A nanocrystalline surface layer of a Cu-Zn alloy was developed by electropulsing (ECP) surface treatment. The average grain size was about 20 nm on the top surface layer and was gradually augmented with the increase in depth from the top surface. Nanoindentation measurements showed that the hardness was significantly enhanced on the top surface layer compared with the as-annealed Cu-Zn sample. The mechanism for the evolution of this structure and property was related not only to a solid-state phase transformation, but also to the effect of the enhancement of the nucleation rate and the skin effect during the ECP treatment. Therefore, the ECP surface treatment provides a promising method for obtaining surface self-nanocrystallization materials.","authors":[],"categoryName":"|","doi":"","fpage":"1947","id":"3817bf72-42f1-42ac-bd7c-3b704a06a4fc","issue":"7","journal":{"abbrevTitle":"JOMR","id":"155c387a-c8cb-4083-85f3-6b58aeef4116","issnPpub":"0884-2914","publisherId":"JOMR","title":"Journal of Materials Research"},"keywords":[{"id":"cf4fc454-2fd6-40e7-b3b6-b32af2aadfd9","keyword":"low-carbon steel;ultrafine-grained microstructure;layer;al","originalKeyword":"low-carbon steel;ultrafine-grained microstructure;layer;al"}],"language":"en","publisherId":"0884-2914_2007_7_1","title":"Formation of nanocrystalline surface of a Cu-Zn alloy under electropulsing surface treatment","volume":"22","year":"2007"},{"abstractinfo":"An electrochemical surface-treatment method, has been used for modifying surface condition of large diameter CVD SiC (VV core) fibers. The average tensile strength of the fibers was increased obviously from 2270.1 to 3002.9 MPa. X-ray photoelectron spectroscopy (XPS) studies on the treated fiber surface indicate that a silicon-oxide film (primarily alpha-SiO2) has formed, accompanying the precipitation of amorphous carbon as the products of an anode oxidation reaction. In addition, the substantial increase of fiber strength through the electrochemical treatment may be described to the formation of oxide films and elimination of defects on the fiber surface.","authors":[],"categoryName":"|","doi":"","fpage":"83","id":"e3d13445-0cf7-42f4-8dc8-515819942284","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_1998_1_4","title":"Strength improvement of CVD SiC fibers by electrochemical surface treatment","volume":"14","year":"1998"},{"abstractinfo":"A nanostructured surface layer of about 20 mu m in thickness was fabricated on a hot-working tool steel (AISI H13) plate by means of surface mechanical attrition treatment (SMAT). Chromizing behaviors of the SMAT sample were investigated in comparison with its coarse-grained counterpart. Relative to the coarse-grained form, the Cr-diffusion depth was obviously enhanced by SMAT at various chromizing temperatures, with a maximum increment at 600 degrees C. A duplex chromizing treatment at 600 degrees C followed by at a higher temperature led to the formation of a much thicker chromized surface layer (up to 30 mu m in thickness) on the SMAT sample. This might be attributed to the formation of a large amount of nanosized chromium compounds in the surface layer at 600 degrees C, which retarded growth of nano-sized ferrite grains and improved the Cr diffusion at higher temperatures. Gradient distributions of Cr concentration, microstructure and hardness were formed in the chromized surface layer in the SMAT steel after the duplex chromizing treatment, leading to an obvious enhancement in the wear resistance. (C) 2009 Elsevier B.V. All rights reserved.","authors":[],"categoryName":"|","doi":"","fpage":"995","id":"04fc9d93-c608-4759-aa4f-9c762a7a62a8","issue":"42830","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":"4125096e-506a-4638-8451-0e00e6d9792f","keyword":"Nanostructured materials;Surface mechanical attrition treatment;Hot-working tool steel;Duplex chromizing treatment;Diffusion;low-carbon steel;nanostructured materials;duplex treatment;wear-resistance;h13 steel;layer;diffusion;coatings;behavior;copper","originalKeyword":"Nanostructured materials;Surface mechanical attrition treatment;Hot-working tool steel;Duplex chromizing treatment;Diffusion;low-carbon steel;nanostructured materials;duplex treatment;wear-resistance;h13 steel;layer;diffusion;coatings;behavior;copper"}],"language":"en","publisherId":"0921-5093_2010_42830_1","title":"Enhanced chromizing kinetics of tool steel by means of surface mechanical attrition treatment","volume":"527","year":"2010"},{"abstractinfo":"Microstructural evolution and micro-hardness of a directionally solidified Ni-base superalloy subjected to shot-peening during cyclic recovery heat treatment was studied. It was found that gamma' dissolved and dislocation annihilation occurred during heating, while gamma' re-precipitated when temperature dropped. Due to the formation of a stable dislocation network at gamma/gamma' interface, full recovery and therefore complete elimination of the surface recrystallization are difficult by the present cyclic recovery heat treatment.","authors":[],"categoryName":"|","doi":"","fpage":"491","id":"b8753ca8-5e4f-4a87-a01d-ee153d35cb52","issue":"6","journal":{"abbrevTitle":"ZRKXJZGJCLYW","coverImgSrc":"journal/img/cover/ZRKXJZGJCLEN.jpg","id":"426320fa-ff0d-4125-a356-09b45a11376b","issnPpub":"1002-0071","publisherId":"ZRKXJZGJCLYW","title":"自然科学进展﹒国际材料(英文)"},"keywords":[{"id":"6a9c9f09-a90b-4930-8b8c-6a32c979c6e7","keyword":"recrystallization;superalloy;dislocation;recovery heat treatment;nickel-base superalloy;single-crystal;behavior","originalKeyword":"recrystallization;superalloy;dislocation;recovery heat treatment;nickel-base superalloy;single-crystal;behavior"}],"language":"en","publisherId":"1002-0071_2011_6_1","title":"Effect of cyclic recovery heat treatment on surface recrystallization of a directionally solidified superalloy","volume":"21","year":"2011"},{"abstractinfo":"为了改善La-Mg-Ni基贮氢合金的循环稳定性和综合电化学性能, 研究了电镀镍-钴合金对La0.88Mg0.12Ni2.95Mn0.10Co0.55Al0.10贮氢合金粉末表面形貌和电极电化学性能的影响. FESEM表明, 电镀处理后合金粉末表面沉积了球状的镍-钴合金颗粒. 电化学性能测试表明, 贮氢合金电极的放电容量、高倍率放电性能和循环稳定性均得到了显著改善. 200周循环时合金电极的容量保持率从未处理合金电极的60%提高到镀覆镍-钴合金的80%, 在放电电流密度1080mA/g下的高倍率放电性能提高了23%. 线性极化曲线和电化学阻抗分析结果显示, 包覆镍-钴合金后贮氢合金电极表面的电荷转移速率加快, 电催化活性提高.","authors":[{"authorName":"丁慧玲1","id":"d7cb5c52-d931-4bbe-a1ec-29a9da391d62","originalAuthorName":"丁慧玲1"},{"authorName":"2","id":"771c34b4-ca70-4069-ad10-4a64f60982cb","originalAuthorName":"2"},{"authorName":"蒿建生1","id":"2cc4b90a-64cb-4045-8fc4-a35f0ac8af5a","originalAuthorName":"蒿建生1"},{"authorName":"3","id":"5ba0177c-e0b3-42dc-b4a9-2f991c718728","originalAuthorName":"3"},{"authorName":"朱惜林2","id":"afb2aeeb-f540-45d5-88fd-a00d91c91cfa","originalAuthorName":"朱惜林2"},{"authorName":"3","id":"2b395904-76b7-4f52-b9bb-0e94f5e2baaf","originalAuthorName":"3"},{"authorName":"李媛2","id":"dc5d7555-7fd0-40fa-b653-e8c25f65512a","originalAuthorName":"李媛2"},{"authorName":"韩树民1","id":"257c7744-5997-4380-9eba-f7af26857dc7","originalAuthorName":"韩树民1"},{"authorName":"2","id":"85b3e4bf-d722-4e19-9d86-916ad6d6a49a","originalAuthorName":"2"},{"authorName":"张静武1","id":"f719c33d-e146-4d0c-9106-3acf9a60caf0","originalAuthorName":"张静武1"}],"categoryName":"|","doi":"10.3724/SP.J.1077.2010.00647","fpage":"647","id":"e3a3fb1f-931a-4403-beec-dfadf75c2a38","issue":"6","journal":{"abbrevTitle":"WJCLXB","coverImgSrc":"journal/img/cover/WJCLXB.jpg","id":"62","issnPpub":"1000-324X","publisherId":"WJCLXB","title":"无机材料学报"},"keywords":[{"id":"82ea9939-2bf4-451f-b4f2-166600b53054","keyword":"La-Mg-Ni基贮氢合金","originalKeyword":"La-Mg-Ni基贮氢合金"},{"id":"f9fd6c55-c369-4140-8d5d-53e7a08aad7b","keyword":" surface treatment","originalKeyword":" surface treatment"},{"id":"03cac37c-c53f-49b5-973b-53a54c0421dc","keyword":" electroplating","originalKeyword":" electroplating"},{"id":"3ded41bd-7a01-4610-98ff-7c021f8b97ac","keyword":" nickel-cobalt alloy","originalKeyword":" nickel-cobalt alloy"},{"id":"effa5f88-db54-4549-971d-d40a1d574234","keyword":" electrochemical characteristics","originalKeyword":" electrochemical characteristics"}],"language":"zh","publisherId":"1000-324X_2010_6_9","title":"电镀镍-钴合金对La-Mg-Ni基贮氢合金电化学性能的影响","volume":"25","year":"2010"},{"abstractinfo":"采用低温燃烧法制备了Y2Zr2O7∶Eu3+纳米微粒,用XRD和HRTEM对纳米微粒的结构、形貌进行了分析和表征.作为对比,采用高温固相法制备了Y2Zr2O7∶Eu3+体相材料,对其变温发光特性进行了测试和对比研究.结果表明,Y2Zr2O7∶Eu3+纳米晶的606和628nm发射(5D0→7F2)最强,与5D0→7F1磁偶跃迁相对发光强度较体相材料增强60%,且随着温度的降低,Eu3+离子5D0→7FJ(J=1,2,3,4)跃迁发光强度均有变化.另外,采用盐酸“浸蚀”技术对Y2Zr2O7∶Eu3+纳米微粒进行了表面处理,室温发射光谱测试表明:5D0→7F2,3,4电偶跃迁与5D0→7F1磁偶跃迁的相对强度较表面处理前减小约15%.对观测到的结果通过纳米微粒的表面效应和激活离子所处局域环境的变化进行了定性解释和讨论.","authors":[{"authorName":"王殿元","id":"58577c3a-520a-462e-990c-faa22e8d591e","originalAuthorName":"王殿元"},{"authorName":"王庆凯","id":"9d6e14ef-512a-403f-a22d-beaadef2cfbf","originalAuthorName":"王庆凯"},{"authorName":"常章用","id":"ae5eef05-c7de-4b9a-aa10-533a6468f32e","originalAuthorName":"常章用"},{"authorName":"郭艳艳","id":"dfff3914-4eea-40a7-9f8a-5cf594f85c65","originalAuthorName":"郭艳艳"},{"authorName":"吴杏华","id":"4a4843fd-2dc1-4b68-a0ee-4d7cd473371a","originalAuthorName":"吴杏华"}],"categoryName":"|","doi":"10.3724/SP.J.1077.2009.00239","fpage":"239","id":"f84ba8c8-f663-4ab5-9bce-39b94209a395","issue":"2","journal":{"abbrevTitle":"WJCLXB","coverImgSrc":"journal/img/cover/WJCLXB.jpg","id":"62","issnPpub":"1000-324X","publisherId":"WJCLXB","title":"无机材料学报"},"keywords":[{"id":"c4ea6519-efb0-4343-b1ea-081d903fee9f","keyword":"Y2Zr2O7∶Eu3+纳米晶","originalKeyword":"Y2Zr2O7∶Eu3+纳米晶"},{"id":"fa81a69b-0d45-4dc7-a565-57de258040b0","keyword":" combustion synthesis","originalKeyword":" combustion synthesis"},{"id":"300f1d51-4f99-425c-ba0e-a302cc4b3a6b","keyword":" temperature dependent photoluminescence","originalKeyword":" temperature dependent photoluminescence"},{"id":"10afde56-a1f5-4713-901d-24af993ebadc","keyword":" surface treatment","originalKeyword":" surface treatment"}],"language":"zh","publisherId":"1000-324X_2009_2_36","title":"Y2Zr2O7∶Eu3+纳米微粒的合成与变温发光特性研究","volume":"24","year":"2009"},{"abstractinfo":"An electrochemical sudece-treatment method has been used for modifying surface condition of large diameter CVD SiC (W core) fibers. The average tensile strength of the fibers was increased obviously from 2270.1 to 3002.9 MPa. X-ray photoelectron spectroscopy (XPS) studies on the treated fiber sudece indicate that a silicon-oxide film (primarily α-SiO2) has formed,accompanying the precipitation of amorphous carbon as the products of an anode oxidation reaction. In addition, the substantial increase of fiber strength through the electrochemical treatment may be described to the formation of oxide films and elimination of defects on the fiber surface.","authors":[{"authorName":"Xinchun CHANG","id":"add743f3-f930-4622-8054-ba66fc68da76","originalAuthorName":"Xinchun CHANG"},{"authorName":" Jianqiang WANG","id":"910799bc-27a3-4f5c-b305-baf4f4d432a0","originalAuthorName":" Jianqiang WANG"},{"authorName":" Nanlin SHI and Zhuangqi HU (State Key Lab. of RSA","id":"7f18fdb4-2ea6-4d4a-8db8-2dd9c4a660a9","originalAuthorName":" Nanlin SHI and Zhuangqi HU (State Key Lab. of RSA"},{"authorName":" Institute of Metal Research","id":"d37d2700-0d20-4abb-a619-1ee15697704c","originalAuthorName":" Institute of Metal Research"},{"authorName":" Chinese Academy of Sciences","id":"d3b5e694-c1b1-4ff3-9479-0b2b7e2e996f","originalAuthorName":" Chinese Academy of Sciences"},{"authorName":" Shenyang 110015","id":"2e69241a-6082-418f-ae28-f83c2937b6c2","originalAuthorName":" Shenyang 110015"},{"authorName":" China)Yijun DU","id":"f8065678-867e-4344-b059-6a82af37d175","originalAuthorName":" China)Yijun DU"},{"authorName":"(Manufacturing Engineering Dept.","id":"bc9f089d-1bb1-419b-ae05-7c74d67625d2","originalAuthorName":"(Manufacturing Engineering Dept."},{"authorName":" City University of Hong Kong","id":"00213e4a-b9ce-40a0-b0db-a513585ca4ae","originalAuthorName":" City University of Hong Kong"},{"authorName":" Kowloon","id":"f3d12e6c-9c9e-478c-9092-aee1fc675d8f","originalAuthorName":" Kowloon"},{"authorName":" Hong Kong)","id":"92bc9068-a186-4bc8-9297-481ac651e417","originalAuthorName":" Hong Kong)"}],"categoryName":"|","doi":"","fpage":"83","id":"1b370798-8c5a-4710-83e1-cc09d3e6b944","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_1998_1_13","title":"Strength Improvement of CVD SiC Fibers by Electrochemical Surface Treatment","volume":"14","year":"1998"}],"totalpage":390,"totalrecord":3892}