DISLOCATION-STRUCTURES AND THE CHARACTER OF SUPERDISLOCATIONS IN NI3AL ALLOYS

被引：2
作者：
KERANS, RJ
HIRTH, JP
CLARK, WAT
机构：
[1] WASHINGTON STATE UNIV, DEPT MECH & MAT ENGN, PULLMAN, WA 99164 USA
[2] OHIO STATE UNIV, DEPT MAT SCI & ENGN, COLUMBUS, MS USA
来源：
ACTA METALLURGICA ET MATERIALIA | 1995年 / 43卷 / 01期
关键词：
D O I：
10.1016/0956-7151(95)90283-X
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Lattice dislocations consisting of pairs of 1/3[112] superpartials bounding extended superlattice intrinsic stacking faults (SISFs) were observed by TEM. They were found to independently react to APE coupled 1/2[110] pairs in the commonly observed pure screw orientation. Boron was observed to have strong effects upon the population of boundary types, grain size, and grain growth. In addition, small amounts of B completely eliminate widely extended stacking faults. It is concluded that effects of B other than influencing boundary cohesion are important. Implications with regard to Kear-Wilsdorf type locking mechanisms and deformation behaviour are discussed.
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页码：277 / 285
页数：9
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