INTERNAL-FRICTION ASSOCIATED WITH DISLOCATION RELAXATIONS IN VIRGIN MARTENSITE .2. INTERPRETATION

被引：13

作者：

LIU, Y

机构：

[1] Laboratory of Engineering Materials, Helsinki University of Technology, Espoo

来源：

ACTA METALLURGICA ET MATERIALIA | 1994年 / 42卷 / 03期

基金：

芬兰科学院;

关键词：

D O I：

10.1016/0956-7151(94)90258-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Interpretations for the M2, M3 and M4 internal friction peaks observed (Part 1) [Acta metall. mater. 41, 3277 (1993)] during heating of virgin martensite from 82 to 350 K are presented. M4 and M3 peaks can be attributed to the generation of kink-pairs along non-screw and screw dislocations, respectively, while M2 peak is related to the interaction between non-screw dislocations and interstitial carbon atoms. Activation energies and pre-exponential factors of relaxation time tau0 are determined for each peak. Peierls stress of martensite is estimated.

引用

页码：621 / 630

页数：10