应用金相及X射线分析法研究了钨-钼-锆三元系1200℃恒温截面。确定在这个截面上存在三个极窄的单相区:钨-钼固溶体α、锆固溶体β、三元中间相ε和两个广阔的两相区:(α+ε)与(ε+β)。α相和β相具有体心立方结构;ε相则具有MgCu_2结构的三元Laves相Zr(W,Mo)_2。ε相的点阵常数由ZrW_2到ZrMo_2呈线性变化。合金硬度测量结果与金相及X射线分析结果相符。
The isothermal section at 1200℃ of the ternary system W-Mo-Zr has been determined by metallographic and X-ray diffraction methods. Two terminal b.c.c, solid solutions based on W(Mo) and Zr respectively and an intermetallic compound Zr(W, Mo)_2 isomorphous with MgCu_2 structure have been identified. The lattice parameter of Zr(W, Mo)_2 varies linearly from 7.619 (?) for ZrW_2 to 7.589A for ZrMo_2. Vicker's hardness measurements support the metallographic and X-ray diffraction results.
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