HIGH-RESOLUTION ELECTRON-MICROSCOPY AND ELECTRON-DIFFRACTION STUDY OF THE DISPLACIVE TRANSFORMATION OF THE NI2AL PHASE IN A NI-65 AL-35 ALLOY AND ASSOCIATED WITH THE MARTENSITIC-TRANSFORMATION

被引：31
作者：
MUTO, S
SCHRYVERS, D
MERK, N
TANNER, LE
机构：
[1] UNIV ANTWERP, EMAT, B-2020 ANTWERP, BELGIUM
[2] ECOLE POLYTECH FED LAUSANNE, LMM, DMX, CH-1015 LAUSANNE, SWITZERLAND
[3] LAWRENCE LIVERMORE NATL LAB, DEPT MAT SCI, LIVERMORE, CA 94550 USA
来源：
ACTA METALLURGICA ET MATERIALIA | 1993年 / 41卷 / 08期
关键词：
D O I：
10.1016/0956-7151(93)90317-L
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Ni-rich Ni-Al beta2 phase (CsCl structure) exhibits the precipitation of a metastable Ni2Al phase, which is closely related to an underlying lattice instability of the [111] phonon branch in the beta2 phase. The Ni2Al precipitates undergo both the Bain distortion and twinning together with the martensitic transformation of the beta2 matrix. The resulting structure of the Ni2Al precipitates in the martensite is presented and discussed.
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页码：2377 / 2383
页数：7
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