| 机械合金化制备Cu-Cr合金时效强化特性的研究 |
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| 引用本文： | 王德宝,吴玉程,王文芳,宗跃,黄新民.机械合金化制备Cu-Cr合金时效强化特性的研究[J].热处理,2009,24(1):30-33. |
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| 作者姓名： | 王德宝 吴玉程 王文芳 宗跃 黄新民 |
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| 作者单位： | 1. 合肥工业大学材料科学与工程学院,安徽,合肥,230009
2. 合肥工业大学复合材料公司,安徽,合肥,230009 |
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| 基金项目： | 安徽省二期科技攻关项目，合肥市重点科技攻关项目，安徽省自然科学基金 |
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| 摘 要： | 采用机械合金化工艺制成Cu—Cr合金粉末，然后热压成形制备铜铬合金。采用XRD、TEM分析机械合金化过程中Cu-Cr合金粉末的显微组织和晶粒大小，测试了热压成形后Cu—Cr合金的力学和电学性能，探讨了材料的强化机制和热压温度对组织性能的影响。结果表明，Cu—Cr合金粉末可通过机械合金化获得过饱和固溶体，热压成形后，组织细小均匀，具有优良的综合性能。该合金经840℃热压并保温2h后，其强度达最大值，显微硬度为205．3HV，抗拉强度633．5MPa，电导率为80．4％IACS。合金中过饱和的Cr原子的作用是使合金沉淀强化。
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| 关 键 词： | Cu-Cr合金 机械合金化 热压成形 时效强化 |
Study on Age Hardening Characteristics of Cu-Cr Alloy Prepared by Mechanical Alloying |
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| WANG De-bao,WU Yu-cheng,WANG Wen-fang,ZONG Yue,HUANG Xin-min.Study on Age Hardening Characteristics of Cu-Cr Alloy Prepared by Mechanical Alloying[J].Heat Treatment,2009,24(1):30-33. |
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| Authors: | WANG De-bao WU Yu-cheng WANG Wen-fang ZONG Yue HUANG Xin-min |
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| Affiliation: | 1.School of Materials Science and Engineering;Hefei University of Technology;Hefei 230009;Anhui;2.Composite Co.;Anhui |
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| Abstract: | Cu-Cr alloy powders were fabricated by a mechanical alloying and then became Cu-Cr alloy through a hot pressing method.The microstructure and the grain size of Cu-Cr powders during the mechanical alloying process were investigated by means of XRD and TEM.The mechanical and electric properties of Cu-Cr alloy were studied after the hot-pressing and sintering processes.The strengthening mechanism and the effect of hot-pressing temperature on the microstructure and property were discussed regarding Cu-Cr alloy.... |
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| Keywords: | Cu-Cr alloy mechanical alloying hot pressing age hardening |
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