METEORITES AND THERMODYNAMIC-EQUILIBRIUM IN FCC IRON-NICKEL ALLOYS (25-50-PERCENT NI)
METEORITES AND THERMODYNAMIC-EQUILIBRIUM IN FCC IRON-NICKEL ALLOYS (25-50-PERCENT NI)
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DOI：
10.1088/0031-8949/22/2/014
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发表时间：
1980-01-01
期刊：
影响因子：
2.9
通讯作者：
VISTISEN, L
中科院分区：
文献类型：
--
作者：
ALBERTSEN, JF;KNUDSEN, JM;VISTISEN, L
Mössbauer光谱和x射线研究表明，陨石中的铁镍合金（fcc铁镍合金）普遍分解为L10结构的有序相FeNi和含镍量小于25%的无序fcc铁镍合金。这两相具有相同的勇敢晶格，即它们形成伪单晶。用Fe-Ni相图对分解过程进行了讨论。
Mössbauer spectroscopy and X-ray investigations show that taenite (fcc iron-nickel alloy) in meteorites generally has decomposed into an ordered phase FeNi with the L10 structure and a disordered fcc iron-nickel alloy containing less than 25% of Ni. The two phases have the same bravais lattice, ie, they form a pseudo monocrystal. The decomposition is discussed in terms of Fe-Ni phase diagram.