欢迎登录材料期刊网

材料期刊网

高级检索

研究了不同时效工艺对Cu-0.7Cr-0.13Zr合金硬度、强度和导电率性能的影响,利用透射电镜分析合金时效后的微观形态和析出相.结果表明:在500℃时效30min析出相为Cu5Zr,硬度和导电率可达116.7HV和47%IACS.500℃时效6h后,硬度和导电率为140HV和76%LACS,强度达到峰值430MPa,弥散共格的析出相Cr是强度提高的重要原因,强化效应与采用共格强化机理计算的结果非常接近.合金在500℃时效8h硬度和强度仍具有135.6HV和410MPa,导电率为77%IACS,析出相仍较细小但与基体失去共格关系.

参考文献

[1] Davis J W;Kalinin G M .Material properties and design requirements for copper alloys used in ITER[J].Journal of Nuclear Materials,1998,258-263:323-328.
[2] Femee H;Naim J .Precipitation hardening of Cu-Fe-Cr alloys[J].Journal of Materials Science,2001,36:2711-2719.
[3] Choi H I;Lee K Y;Kwun S L .Fabrication of high conductivity copper alloys by rod milling[J].Journal of Materials Science Letters,1997,16:1600-1602.
[4] Tu J P .effect of aging treatment on the electrical sliding wear behavior of Cu-Cr-Zr alloy[J].Wear,2002,249:1021-1027.
[5] 齐卫笑,涂江平,杨友志,耐艳,张家涛,王甘国友,刘芙,张孝彬,刘茂森.时效处理对低溶质Cu-Cr-Zr合金力学和电滑动磨损性能的影响[J].摩擦学学报,2001(06):405-409.
[6] Kang BX;Cao XG;Huang JL;Yen B;Gu HC;Liu P .Aging precipitation and recrystallization of rapidly solidified Cu-Cr-Zr-Mg alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1999(1/2):262-267.
[7] 廖素三,尹志民,蒋牵,姜锋,宋练鹏,汪明朴.热处理对Cu-Cr(-Zr)合金力学性能和导电性能的影响[J].中国有色金属学报,2000(05):684.
[8] Holzwarth U.;Stamm H. .The precipitation behaviour of ITER-grade Cu-Cr-Zr alloy after simulating the thermal cycle of hot isostatic pressing[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2000(1):31-45.
[9] Batawi E;Morris D G;Morris M A .effect of small alloying additions on behavior of rapidly solidified Cu-Cr alloys[J].Materials Science and Technology,1990,6:892-899.
[10] Tang N Y .Precipitation and aging in high-conductivity Cu-Cr alloys with additions of zirconium and magnesium[J].Materials Science and Technology,1985,1:270-270.
[11] Huang Fuxiang;Ma Jusheng;Ning Honglong;Geng Zhiting;Lu Chao;Guop Shumei;Yu Xuetao;Wang Tao;Li Hong;Lou Huafen .Analysis of phases in a Cu-Cr-Zr alloy[J].Scripta materialia,2003(1):97-102.
[12] Zeng K J .Phase relationships in Cu-rich corner of the Cu-Cr-Zr phase diagram[J].Scripta Metallurgica et Materialia,1995,32(12):2009-2014.
[13] 刘平;康布熙 .快速凝固Cu-Cr合金时效析出的共格强化效应[J].金属学报,1999,35(06):561-564.
[14] 张家涛 .高性能Cu-Cr(Zr、Mg)自生复合材料研究及其应用[D].昆明理工大学,2001.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%