Influence of various heat treatments on fatigue crack growth in 42CrMo4 steel under mixed modes I plus II and I plus III

被引：3

作者：

Duda, Monika ^{[1
]}

Rozumek, Dariusz ^{[2
]}

Smolnicki, Michal ^{[1
]}

Wybraniec, Anna ^{[1
]}

机构：

[1] Wroclaw Univ Sci & Technol, Dept Mech Mat & Biomed Engn, Smoluchowskiego 25, PL-50370 Wroclaw, Poland

[2] Opole Univ Technol, Dept Mech & Machine Design, ul Mikolajczyka 5, PL-45271 Opole, Poland

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2022年 / 165卷

关键词：

Fatigue fracture; Fatigue crack growth; Mixed mode; Heat treatment;

D O I：

10.1016/j.ijfatigue.2022.107173

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The article addresses the results of the study of the examination of fatigue fracture in mixed and I + II and I + III modes in heat treated steel 42CrMo4. Three types of thermal treatments were performed, each caused various mechanical properties of the material. Tests were performed on two sample types: compact tension specimen (CTS) and rectangular cross-sectional samples for mixed mode and I + III. Mixed mode I + II tests were performed for 30 and 60 degrees load angles while the mixed mode test I + III was carried out for 30 and 45 degrees. In addition, the paper shows crack paths for all cases tested. Presented research aims to expand the knowledge of fatigue crack development under mixed mode while taking into consideration different mechanical properties of the same composition-wise material. The aforementioned knowledge is a significant contribution to defining the material fatigue under complex load, independently to sample geometry and number of other limitations.

引用

页数：10

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