CHEN Rongzhen ZHANG Hanxing ZHENG Jianxuan Guangxi University
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Nanning
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ChinaHE Hanping Guangxi Research Institute of Nonferrous Metals and Geology
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Nanning
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China CHEN Rongzhen
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Professor
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Department of Physics of Guangxi University
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Nanning
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Guangxi 530004
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China
金属学报(英文版)
The 410℃ isothermal section of the phase diagram of Al-Cu-Sb ternary system has been de- termined by means of X-ray powder diffraction method and electron probe microanalysis. The section determined consists of 12 single-phase regions,21 bi-phase regions and 10 tri-phase regions.
关键词:
Al-Cu-Sb ternary system
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null
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null
ZHUANG Yinghong Guangxi University
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Nanning
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China ZHUANG Yinghong Department of Physics
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Guangxi University
,
Nanning
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China
金属学报(英文版)
The major phases in the Cu-rich alloys containing Co,Cr and Si are α-Cu(a solid solution of Co,Cr and Si in Cu),χ-phase(Co_5Cr_3Si_2)and Co_2Si.In comparison with reference sample,it has been detected that the crystal structure of Co_5Cr_3Si_2 is cubic,α-Mn type with a=0.8694 nm.The melting temperature of χ-phase and the alloy are higher than that of the pure Cu,namely,1535 and 1389 K respectively.During ageing treatment,the Co_2Si phase precipitates out from α-Cu and χ-phase simultaneously,but the hardening effect is mainly contributed by the precipitation from α-Cu.
关键词:
Cu-rich alloy
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null
LI Dexuan ZHENG Jianxuan Guangxi University
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Nanning
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China
金属学报(英文版)
The room temperature section of Cu-Dy(≤35wt-%)-Ni phase diagram has been determined by means of X-ray diffraction technique.The results are as follows.four single-phase regions (α,Dy_2Ni_(17),DyNi_5 and DyCu_5),five two-phase regions(α+Dy_2N_(17),Dy_2Ni_(17)+DyNi_5, DyCu_5+DyNi_5,α+DyNi_5 and DyCu_5+α)and two three-phase regions (α+Dy_2Ni_(17)+DyNi_5 and α+DyNi_5+DyCu_5)exist in the seetion.No any new phase was ob- servered.The solubility of Dy in α-phase is up to 2 wt-%.
关键词:
Cu-Dy-Ni system
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null
