For a 40wt%Sn – 60wt%Pb alloy at roomtemperature, Calculate the relative amount of each phase present in term of massfraction;
A. Wα=60%; Wβ=40%
B. Wα=38.8%; Wβ=61.2%
C. Wα=61.2%; Wβ=38.8%
D. Wα=40%; Wβ=60%
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下列说法正确的是
A. 面心立方的单位位错是
B. 体心立方的单位位错是
C. 密排六方的单位位错是
D. 以上均不正确
面心立方结构的密排面和密排方向是
A. {110},
B. {111},
C. {100},
D. {111},
求截距为1,∞,∞晶面的指数为
A. (100)
C. (011)
D. (101)