| Effects of extrusion on chromium precipitation in Cu-Cr alloy |
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| 作者姓名： | 范志康 杨红旺 梁淑华 肖鹏 |
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| 作者单位： | School of Materials Science and Engineering，Xi′an University of Technology，School of Materials Science and Engineering，Xi′an University of Technology，School of Materials Science and Engineering，Xi′an University of Technology，School of Materials Science and Engineering，Xi′an University of Technology Xi′an 710048，China，Xi′an 710048，China，Xi′an 710048，China，Xi′an 710048，China |
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| 基金项目： | Project ( 2 0 0 0C3 0 )supportedbytheNaturalScienceFoundationofShaanxiProvince，China |
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| 摘 要： | 1 INTRODUCTIONChromiummaycrystallizeasashortbarorden driteduringsolidificationofCu Cralloy13] .AllkindsofCrparticlesmaydissolveintocoppermatrixduringsolutiontreatmentat 980℃ .Duringthesub sequentaging ,thechromiumdissolvedincopperma trixwillprecipitate4 6 ] .Theprecipitatedchromiumparticleshavegreateffectsonmechanicalandelectri calpropertiesofCu Cralloyaccordingtotheirsize ,shapeanddistribution79] .Someworksfocusedoneffectofalloyingadditionsonthesizeofchromiumparticleandpropertyof…
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Effects of extrusion on chromium precipitation in Cu-Cr alloy |
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| FAN Zhi kang,YANG Hong wang,LIANG Shu hua,XIAO Peng.Effects of extrusion on chromium precipitation in Cu-Cr alloy[J].Transactions of Nonferrous Metals Society of China,2003,13(2). |
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| Authors: | FAN Zhi kang YANG Hong wang LIANG Shu hua XIAO Peng |
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| Abstract: | Cu-Cr alloys containing Cr from 0.14% to 2.0% in mass were prepared as foils for TEM observation before and after being extruded. The results show that before extrusion, the spheroid or short bar chromium disperse in copper matrix of the Cu-Cr alloy, and the relationship between Cu and Cr follows the Nishiyama-Wasserman (NW) relationship, I.e. 110]Cu∥001]Cr. After the Cu-Cr alloy was extruded at 860℃, dark field image along (224)Cu clearly shows that there are precipitated chromium particles in copper matrix. However, the SADP comprises only (112)Cu zone. |
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| Keywords: | Cu Cr alloy chromium precipitation extrusion |
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