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中國有色金屬學(xué)報

ZHONGGUO YOUSEJINSHU XUEBAO

第10卷第5期總第38期 2000年10月

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文章編號：1004-0609(2000)05-0684-04

熱處理對CuCr(Zr)合金力學(xué)性能和導(dǎo)電性能的影響

廖素三，尹志民，蔣牽，姜鋒，宋練鵬，汪明樸

(中南工業(yè)大學(xué) 材料科學(xué)與工程系，長沙 410083)

摘要: 制備了CuCr和CuCrZr二種合金板材，研究了不同熱處理工藝對合金的顯微組織、力學(xué)性能和導(dǎo)電性能的影響。結(jié)果表明，在本實驗條件下， Cu0.5Cr合金經(jīng)960 ℃, 1 h固溶和450 ℃, 20 h時效后，抗拉強度為363 MPa，屈服強度為274 MPa，延伸率為22%，電導(dǎo)率達81%IACS；添加微量Zr到Cu0.5Cr合金中，在不降低合金延伸率情況下，合金強度可提高50 MPa，但電導(dǎo)率降低約10%IACS。

關(guān)鍵字: CuCr合金； CuCrZr合金；熱處理；顯微組織

Effect of heat treatment on mechanical properties and electrical conductivity of CuCr(Zr) alloy

LIAO Susan, YIN Zhimin, JIANG Qian, JIANG Feng, SONG Lianpeng, WANG Mingpu

（Department of Materials Science and Engineering, Central South University of Technology, Changsha 410083, P.R.China）

Abstract:Cu0.5Cr and Cu0.5Cr0.2Zr alloy plates were prepared. The effects of heat treatment on microstructure, mechanical properties and electrical conductivity have been studied. The results show that under 960 ℃, 1h solution treating and 450 ℃, 20 h aging condition, the tensile strength, yield strength, elongation and electrical conductivity of Cu0.5Cr alloy can reach 363 MPa, 274 MPa, 22% and 81%IACS respectively. Adding 0.2%Zr to Cu0.5Cr alloy, the tensile strength and yield strength of the alloy increase by about 50 MPa. However, under this condition the electrical conductivity of the alloy decreases by 10%IACS.

Key words: CuCr alloy; CuCrZr alloy; heat treatments; microstructures

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW