Investigation of the size effect on 42CrMo4+QT steel in the high-cycle fatigue domain part I: Experimental campaign

被引：6
|
作者：
Papuga, Jan [1 ]
Mzourek, Matej [1 ]
Matusu, Martin [1 ]
Mara, Vladimir [1 ]
Capek, Jiri [2 ]
机构：
[1] Czech Tech Univ, Fac Mech Engn, Tech 4, Prague 6, Czech Republic
[2] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Trojanova 13, Prague 2, Czech Republic
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2023年 / 175卷
关键词：
Size effect; Surface roughness; Hardness; Residual stress; NOTCH; SPECIMENS; MODELS; LIMIT;
D O I：
10.1016/j.ijfatigue.2023.107743
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The influence of the size effect is investigated experimentally on unnotched 42CrMo4 + QT fatigue specimens of four configurations with different critical volumes. An investigation of external factors present during experiments is also carried out. The paper shows how complicated it is to analyze a single effect in fatigue experiments. The effects of uneven surface roughness, semi-product hardness across its cross-section or of residual stresses on the fatigue life of the specimens are discussed.
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页数：14
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