Fracture toughness in a rolled AZ31 magnesium alloy

被引：45
|
作者：
Somekawa, Hidetoshi
Mukai, Toshiji
机构：
[1] Natl Inst Mat Sci, Ecomat Ctr, Tsukuba, Ibaraki 3050047, Japan
[2] Natl Inst Mat Sci, ICYS, Tsukuba, Ibaraki 3050047, Japan
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2006年 / 417卷 / 1-2期
关键词：
magnesium alloy; rolled plate; SEM; fracture toughness;
D O I：
10.1016/j.jallcom.2005.07.073
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effect of texture on fracture toughness was investigated for a wrought AZ31 magnesium alloy, which was a commercial rolled plate having strong basal texture. The value of plane-strain fracture toughness, K-IC = 17.6-20.7 MPam(1/2), was obtained from the stretched zone (SZ) analysis. The value of K-IC varied with the distribution of basal texture; the sample having a pre-crack normal to rolled direction was the highest value of K-IC in all present samples. The crack-tip having parallel to the rolled direction was easily able to propagate and/or proceed with applied load. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：209 / 213
页数：5
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