Statistical aspects of fatigue behaviour in a PM Ni-base superalloy Udimet 720

被引：21

作者：

Luo, J ^{[1
]}

Bowen, P ^{[1
]}

机构：

[1] Univ Birmingham, Dept Met & Mat, Struct Mat Res Ctr, Birmingham B15 2TT, W Midlands, England

来源：

ACTA MATERIALIA | 2003年 / 51卷 / 12期

关键词：

fatigue; nickel alloys; statistical mechanics; extrusion; defect;

D O I：

10.1016/S1359-6454(03)00171-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fatigue growth of naturally-nucleated surface cracks was investigated in air under four-point bending for the PM Ni-base superalloy Udimet 720. Cracks were found to nucleate from surface defects. Statistical aspects of the fatigue crack nucleation and fatigue crack growth resistance were investigated in terms of probabilistic modelling. (C) 2003 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：3521 / 3535

页数：15

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