Analyses of Heterogeneous Deformation and Subsurface Fatigue Crack Generation in Alpha Titanium Alloy at Low Temperature

被引：5

作者：

Umezawa, Osamu ^{[1
]}

Morita, Motoaki ^{[1
,3
]}

Yuasa, Takayuki ^{[1
,4
]}

Morooka, Satoshi ^{[1
,5
]}

Ono, Yoshinori ^{[2
]}

Yuri, Tetsumi ^{[2
]}

Ogata, Toshio ^{[2
]}

机构：

[1] Yokohama Natl Univ, Dept Mech Engn & Mat Sci, 79-5 Tokiwadai, Yokohama, Kanagawa 2408501, Japan

[2] Nat Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

[3] Tokyo Univ Marine Sci & Technol, Koto Ku, Tokyo 1358533, Japan

[4] Nippon Steel & Sumitomo Met, Kashima 3140014, Japan

[5] Tokyo Metropolitan Univ, Hino, Tokyo 1910065, Japan

来源：

ADVANCES IN CRYOGENIC ENGINEERING, VOL 60 | 2014年 / 1574卷

关键词：

fatigue; cracks; diffraction; strain incompatibility; Taylor factor; critical resolved shear stress; titanium; HIGH-CYCLE FATIGUE; CRYOGENIC TEMPERATURES; INITIATION; TI-6AL-4V; TEXTURE; SLIP;

D O I：

10.1063/1.4860601

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Subsurface crack initiation in high-cycle fatigue has been detected as {0001} transgranular facet in titanium alloys at low temperature. The discussion on the subsurface crack generation was reviewed. Analyses by neutron diffraction and full constraints model under tension mode as well as crystallographic identification of the facet were focused. The accumulated tensile stress along < 0001 > may be responsible to initial microcracking on {0001} and the crack opening.

引用

页码：34 / 41

页数：8

共 21 条

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