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Solidified Microstructures of Al-Ge Alloy Under High Pressure
Author(s): 
Pages: 28-30
Year: Issue:  1
Journal: HEAT TREATMENT OF METALS

Keyword:  高压Al-Ge合金形核率组织细化;
Abstract: 通过对高压(5.0GPa)条件下Al-Ge合金凝固组织形貌的观察和X射线衍射分析,研究了压力对合金组织形貌及相组成的影响,并与常压条件下合金组织形貌进行了比较.结果表明,在5.0GPa条件下凝固的Al-Ge合金无新相出现;常压条件下树枝状的共晶组织在高压凝固时消失;常压条件下由块状的初生β(Ge)和层片共晶组织(α+β)组成的过共晶合金在高压凝固时出现大量的初生α(Al)相,表明高压条件下凝固时Al-Ge合金共晶点明显右移(Ge方向);高压共晶形态以α(Al)为核心呈放射状.
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