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STUDY OF THE NEW FRANK KASPER PHASES IN AL-LI-CU-MG ALLOYS

被引：0
|
作者：
WANG, SC
LI, CZ
YAN, MG
机构：
[1] INST AERONAT MAT, BEIJING 100095, PEOPLES R CHINA
[2] ACAD SINICA, INST MET RES, ATOM IMAGING SOLIDS LAB, SHENYANG 110015, PEOPLES R CHINA
来源：
ACTA METALLURGICA ET MATERIALIA | 1993年 / 41卷 / 10期
关键词：
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new group of Frank-Kasper phases has been observed in Al Li-Cu-Mg alloys using high resolution electron microscopy (HREM). The Y phase, which has a face-centre cubic structure with a = 2.0 nm, occurs in grain boundaries during precipitation heat treatment of supersaturated solid solution. Considerable amount of intrinsic faults, extrinsic faults and microtwins were observed in the Y phase. A new domain denominated as D intergrowth with Y phase along {111} planes has been found. By combination of Y phase and D domain, new domains can be constructed.
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页码：2949 / 2952
页数：4
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