High-cycle fatigue of Ni-base superalloy Inconel 713LC

被引：75

作者：

Kunz, Ludvik ^{[1
]}

Lukas, Petr ^{[1
]}

Konecna, Radomila ^{[2
]}

机构：

[1] Acad Sci Czech Republ, Inst Phys Mat, Brno 61662, Czech Republic

[2] Univ Zilina, Zilina, Slovakia

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2010年 / 32卷 / 06期

关键词：

IN; 713LC; High-cycle fatigue; Effect of mean stress; Fractography; Casting defects; Extreme value statistics; STRENGTH; CAST;

D O I：

10.1016/j.ijfatigue.2009.02.042

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Fatigue strength of three nominally identical batches of cast Ni-base superalloy Inconel 713LC under load symmetrical cycling and cycling with tensile mean load was experimentally determined in high-cycle fatigue region at a temperature of 800 degrees C in air. Examination of fracture surfaces, crack initiation sites, microstructure and casting defects has been performed. Statistical method of largest extreme value distribution has been applied to characterize the casting defect distribution. The aim of the study was to evaluate the mean stress effect on high-cycle fatigue life, to explain the scatter of fatigue life data and a scatter related to material produced under nominally identical production conditions. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：908 / 913

页数：6

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