铬的真实固溶含量对铜铬合金硬度的影响
Effect of True Content of Cr in Solid Solution on Hardness of Cu-Cr Alloys
摘 要
采用真空吸铸法制备了不同铬含量的铜铬合金铸锭, 研究了铬的真实固溶含量对其晶格常数与显微硬度的影响。结果表明: 铜铬合金铬固溶含量低于其固溶度时, 晶格常数与铬固溶含量、显微硬度与铬固溶含量、晶格常数和显微硬度间均呈良好线性关系; 铬固溶含量超过其固溶度后, 合金的晶格常数、显微硬度随铬含量变化不大。
固溶度
晶格常数
Vegard定律
Cu-Cr alloy
solid solubility
lattice parameter
Vegard′s law
Abstract
Cu-Cr alloys with different contents were fabricated by vacuum suction casting method. The effects of true contents of Cr in solid solution on lattice parameter and Vickers hardness of Cu-Cr alloys were studied. Results show that the relationships between the lattice parameter and the content of Cr in solid solution, between the microhardness and the Cr content and between the lattice parameter and the microhardness were all linear, when the Cr content in solid solution was lower than its solid solubility. When the Cr content in solid solution was higher than its solid solubility, the lattice parameter and microhardness of the alloy did not varied obviously with the increase of Cr content.
中图分类号 TG14
所属栏目 材料性能及其应用
基金项目 国家自然科学基金资助项目(50704006); 河南省教育厅基金资助项目(12A430009)
收稿日期 2012/2/24
修改稿日期 2012/9/30
网络出版日期
作者单位点击查看
备注陈春玲(1979-), 女, 河南焦作人, 讲师, 硕士。
引用该论文: CHEN Chun-ling,LI Qiang. Effect of True Content of Cr in Solid Solution on Hardness of Cu-Cr Alloys[J]. Materials for mechancial engineering, 2013, 37(3): 80～82
陈春玲,李强. 铬的真实固溶含量对铜铬合金硬度的影响[J]. 机械工程材料, 2013, 37(3): 80～82
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【3】XU C Z, WANG Q J, ZHENG M S, et al. Microstructure and properties of ultra-fine grain Cu-Cr alloyprepared by equal-channel angular pressing［J］.Materials Science and Engineering A, 2007, 459: 303-308.
【4】SU J H, LIU P, DONG Q M, et al. Aging study of rapidly solidified and solid-solution Cu-Cr-Sn-Zn alloy［J］.Journal of Materials Processing Technology, 2007, 184(11): 1-6.
【5】王永, 米绪军, 谢水生, 等.热处理形变对Cu-0.40Cr-0.15Zr合金性能的影响［J］.稀有金属, 2006, 30(6): 881-883.
【6】董企铭, 苏娟华, 刘平, 等.Cu-0.7Cr-0.13Zr合金时效强化行为的研究［J］.材料科学与工艺, 2004, 12(6): 630-632.
【7】MU S G, GUO F A, TANG Y Q, et al. Study on microstructure and properties of aged Cu-Cr-Zr-Mg-Re alloy［J］.Materials Science and Engineering A, 2008, 475(1/2): 235-240.
【8】SCHUBERT T, TRINDADE B, WEISSGARBER T, et al. Interfacial design of Cu-based composites prepared by powder metallurgy for heat sink applications［J］.Materials Science and Engineering A, 2008, 475(1/2): 39-44.
【9】WATANABE C, MONZEN R, TAZAKI K.Mechanical properties of Cu-Cr system alloys with and without Zr and Ag［J］. Journal of Materials Science, 2008, 43(3): 813-819.
【10】KITAGAWA K, AKITA T, KITA K, et al. Structure and mechanical properties of severely deformed Cu-Cr-Zr alloys produced by accumulative roll-bonding process［J］.Materials Science Forum, 2008, 584/586: 791-796.
【11】虞觉奇, 易文质, 陈邦迪.二元合金相图［M］ .上海: 上海科技出版社, 1987: 704.
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