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On the Existence of Declared 9R Phase in Fe-Ni Invar Alloy

机译:Fe-Ni因瓦合金中9R声明相的存在

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摘要

An analysis of recently reported electron diffraction patterns suggests that metastable austenitic Fe-32Ni alloy subjected to alpha -> gamma transformation upon slow heating does not exhibit any signs of formation of the 9R phase; the conventional nanocrystalline gamma phase with an fcc lattice is formed instead. Extended lamellae with a layered structure, erroneously identified as a new phase of the (3R + 9R) type in Fe-32Ni alloy, are conventional twinning (midrib) regions of each initial alpha crystal, in which gamma-phase twin nanolamellae are formed upon heating.
机译:对最近报道的电子衍射图谱的分析表明,亚稳奥氏体Fe-32Ni合金在缓慢加热时经历α→γ相转变并没有形成9R相的迹象。代替地,形成具有fcc晶格的常规纳米晶γ相。 Fe-32Ni合金中错误地识别为(3R + 9R)型新相的分层结构的扩展片层是每个初始α晶体的常规孪晶(中肋)区,在其中形成了γ相孪晶纳米片加热。

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