Study on microstructure and properties of aged Cu-Ti-Zr-RE alloy

机译：时效Cu-Ti-Zr-RE合金的组织与性能研究

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Electrical conductivity, tensile strength and micro-hardness of Cu-3.5wt.%Ti-0.1wt.%Zr-RE alloy were investigated after optimizing technics of plastic deformation and the heat treatment. The results show that good combination of the physical and mechanical properties, such as tensile strength 1160 MPa, micro-hardness 335 Hv and electrical conductivity 15 IACS% can be obtained on peak aging at 420℃ for 7 h. Maximum strength was associated with the precipitation of metastable, ordered and coherent β (Cu4Ti) phase on peak aging. Then the strength decreased due to the precipitation of β (Cu3Ti) phase in alloys overaged.

机译：通过优化塑性变形和热处理工艺，研究了Cu-3.5wt。％Ti-0.1wt。％Zr-RE合金的电导率，拉伸强度和显微硬度。结果表明，在420℃时效7 h时，可获得良好的物理机械性能，如抗拉强度1160 MPa，显微硬度335 Hv和电导率15 IACS％。最大强度与峰值时效时亚稳相，有序相干β（Cu4Ti）相的析出有关。然后，由于过时效合金中β（Cu3Ti）相的析出，强度降低。

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来源
《International conference on multi-functional materials and structures》|2009年|p.1687-1690|共4页
会议地点 Qingdao(CN)
作者
Cao Xingmin; Zhu Yubin; Guo Fuan; Xiang Chaojian;
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作者单位

Shanghai University Shanghai 2323444 China Suzhou Institute of Non-ferrous Metal Processing Research Suzhou 215026 China;

Shanghai University Shanghai 2323444 China;

Suzhou Institute of Non-ferrous Metal Processing Research Suzhou 215026 China;

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关键词
Cu-Ti alloy; Age-hardening; Ultra-high strength; Precipitation;

机译：铜钛合金;时效性超高强度；沉淀;

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Study on microstructure and properties of aged Cu-Ti-Zr-RE alloy

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