Effects of High Pressure Heat Treatment on Microstructure and Micro-Mechanical Properties of Cu77.96Al22.04 Alloy

被引：19

作者：

Wu, Lailei ^{[1
]}

Liu, Lin ^{[2
]}

Liu, Jianhua ^{[1
]}

Zhang, Ruijun ^{[1
]}

机构：

[1] Yan Shan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao, Peoples R China

[2] Tangshan Vocat Technol Coll, Dept Basic Med, Tangshan, Peoples R China

来源：

MATERIALS TRANSACTIONS | 2012年 / 53卷 / 03期

关键词：

Cu77.96Al22.04; alloy; high pressure heat treatment; nanoindentation; microstructure; mechanical property; AL-GE; HARDNESS; ZN;

D O I：

10.2320/matertrans.M2011296

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The hardness, elastic modulus, and friction coefficient of the Cu77.96Al22.04 alloy before and after treatment at 750 degrees C and 5 GPa for 15 min were measured by nanoindenter. Effects of high pressure heat treatment on its micromechanical properties were discussed. The results show that high pressure heat treatment can refine the microstructures of the Cu77.96Al22.04 alloy, increase its hardness and elastic recovery rate, and decrease its friction coefficient. It also shows that high pressure treatment has little effect on the elastic modulus. As a result, the deformation resistance and the anti-indentation creep of the alloy are improved effectively. [doi:10.2320/matertrans.M2011296]

引用

页码：504 / 507

页数：4

共 16 条

[1] FCC SOLID-SOLUTIONS IN AL-GE AND AL-SI ALLOYS UNDER HIGH-PRESSURE [J].

DEGTYAREVA, VF ;

CHIPENKO, GV ;

BELASH, IT ;

BARKALOV, OI ;

PONYATOVSKII, EG .

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1985, 89 (02) :K127-K131

[2]

Fan GJ, 2007, J MATER RES, V22, P1235, DOI 10.1557/JMR.2007.0147

[3]

[金国 JIN Guo], 2006, [材料热处理学报, Transactions of materials and heat treatment], V27, P71

[4] Effect of high pressure on the solid-liquid phase change of a nickel base superalloy during hot isostatic pressing [J].

Kim, Min Tae ;

Oh, One Young .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 477 (1-2) :224-232

[5] An investigation of thermal aging effects on the mechanical properties of a Ni3Al-based alloy by nanoindentation [J].

Lee, Dongyun .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 480 (02) :347-350

[6]

Li Rong-de, 2009, Chinese Journal of Nonferrous Metals, V19, P1570

[7] Orowan strengthening effect on the nanoindentation hardness of the ferrite matrix in microalloyed steels [J].

Moon, Joonoh ;

Kim, Sanghoon ;

Jang, Jae-il ;

Lee, Jongbong ;

Lee, Changhee .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 487 (1-2) :552-557

[8] Formation of nanograined structure and decomposition of supersaturated solid solution during high pressure torsion of Al-Zn and Al-Mg alloys [J].

Straumal, BB ;

Baretzky, B ;

Mazilkin, AA ;

Phillipp, F ;

Kogtenkova, OA ;

Volkov, MN ;

Valiev, RZ .

ACTA MATERIALIA, 2004, 52 (15) :4469-4478

[9]

[孙淑华 SUN ShuHua], 2008, [高压物理学报, Chinese Journal of High Pressure Physics], V22, P434

[10]

Wang HY, 2009, CHINESE PHYS LETT, V26, DOI 10.1088/0256-307X/26/10/106201

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