Characterization of cracks formed in large flat-on-flat fretting contact

被引：19

作者：

Juoksukangas, Janne ^{[1
]}

Nurmi, Verner ^{[1
]}

Hintikka, Jouko ^{[3
,5
]}

Vippola, Minnamari ^{[2
]}

Lehtovaara, Arto ^{[1
]}

Mantyla, Antti ^{[3
]}

Vaara, Joona ^{[3
]}

Frondelius, Tero ^{[3
,4
]}

机构：

[1] Tampere Univ, Fac Engn & Nat Sci, Mat Sci & Environm Engn, Tribol & Machine Elements, POB 589, Tampere 33014, Finland

[2] Tampere Univ, Fac Engn & Nat Sci, Mat Sci & Environm Engn, Mat Characterizat, POB 589, Tampere 33014, Finland

[3] R&D & Engn, POB 244, Vaasa 65101, Finland

[4] Univ Oulu, Erkki Koiso Kanttilan Katu 1, Oulu 90014, Finland

[5] Tampere Univ Technol, Lab Mat Sci, Tribol & Machine Elements, POB 589, Tampere 33101, Finland

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2019年 / 124卷

关键词：

Fretting fatigue; Damage; Crack formation; Cracks; Microscopy; FATIGUE BEHAVIOR; FRICTION; WEAR; INITIATION; DAMAGE; MECHANISM;

D O I：

10.1016/j.ijfatigue.2019.03.004

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Fretting fatigue may lead to severe damage in machines. Adhesive material transfer spots in millimeter scale have previously been observed on fretted surfaces, which have been related to cracking. In this study, fretting-induced cracks formed in a large annular flat-on-flat contact are characterized. Optical and scanning electron microscopy of the fretting scar cross-section samples of self-mated quenched and tempered steel specimens revealed severe cracking and deformed microstructure. Two major cracks typically formed around an adhesion spot, which propagated at an oblique angle, regardless of the test parameters used. Millimeter-scale cracks were observed already within a few thousand loading cycles.

引用

页码：361 / 370

页数：10

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