Effect of shot peening on fretting fatigue of Ti811 alloy at elevated temperature

Xiaohua Zhang; Daoxin Liu

doi:10.1016/j.ijfatigue.2008.10.004

Effect of shot peening on fretting fatigue of Ti811 alloy at elevated temperature

Xiaohua Zhang, Daoxin Liu

Research output: Contribution to journal › Article › peer-review

88 Scopus citations

Abstract

The effects of compressive residual stress, surface roughness, microstructure hardening induced by shot peening (SP) on the fretting fatigue (FF) resistance of Ti811 titanium alloy at elevated temperature were evaluated. The results show that SP improves the FF resistance of Ti811 alloy at 350 °C, but decreases the resistance at 500 °C. Compressive residual stress is the predominant factor in improving the FF resistance of the alloy at 350 °C. Compressive residual stress induced by SP arrests crack growth. Microstructure hardening due to SP has a minor effect on FF resistance. Surface roughening induced by SP is detrimental to the FF resistance of the alloy at both 350 and 500 °C, as microcracks initiate easily in the roughened surface under these conditions.

Original language	English
Pages (from-to)	889-893
Number of pages	5
Journal	International Journal of Fatigue
Volume	31
Issue number	5
DOIs	https://doi.org/10.1016/j.ijfatigue.2008.10.004
State	Published - May 2009

Keywords

Elevated temperature
Fretting fatigue
Residual stress
Shot peening
Titanium alloy

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10.1016/j.ijfatigue.2008.10.004

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title = "Effect of shot peening on fretting fatigue of Ti811 alloy at elevated temperature",

abstract = "The effects of compressive residual stress, surface roughness, microstructure hardening induced by shot peening (SP) on the fretting fatigue (FF) resistance of Ti811 titanium alloy at elevated temperature were evaluated. The results show that SP improves the FF resistance of Ti811 alloy at 350 °C, but decreases the resistance at 500 °C. Compressive residual stress is the predominant factor in improving the FF resistance of the alloy at 350 °C. Compressive residual stress induced by SP arrests crack growth. Microstructure hardening due to SP has a minor effect on FF resistance. Surface roughening induced by SP is detrimental to the FF resistance of the alloy at both 350 and 500 °C, as microcracks initiate easily in the roughened surface under these conditions.",

keywords = "Elevated temperature, Fretting fatigue, Residual stress, Shot peening, Titanium alloy",

author = "Xiaohua Zhang and Daoxin Liu",

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T1 - Effect of shot peening on fretting fatigue of Ti811 alloy at elevated temperature

AU - Zhang, Xiaohua

AU - Liu, Daoxin

PY - 2009/5

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N2 - The effects of compressive residual stress, surface roughness, microstructure hardening induced by shot peening (SP) on the fretting fatigue (FF) resistance of Ti811 titanium alloy at elevated temperature were evaluated. The results show that SP improves the FF resistance of Ti811 alloy at 350 °C, but decreases the resistance at 500 °C. Compressive residual stress is the predominant factor in improving the FF resistance of the alloy at 350 °C. Compressive residual stress induced by SP arrests crack growth. Microstructure hardening due to SP has a minor effect on FF resistance. Surface roughening induced by SP is detrimental to the FF resistance of the alloy at both 350 and 500 °C, as microcracks initiate easily in the roughened surface under these conditions.

AB - The effects of compressive residual stress, surface roughness, microstructure hardening induced by shot peening (SP) on the fretting fatigue (FF) resistance of Ti811 titanium alloy at elevated temperature were evaluated. The results show that SP improves the FF resistance of Ti811 alloy at 350 °C, but decreases the resistance at 500 °C. Compressive residual stress is the predominant factor in improving the FF resistance of the alloy at 350 °C. Compressive residual stress induced by SP arrests crack growth. Microstructure hardening due to SP has a minor effect on FF resistance. Surface roughening induced by SP is detrimental to the FF resistance of the alloy at both 350 and 500 °C, as microcracks initiate easily in the roughened surface under these conditions.

KW - Elevated temperature

KW - Fretting fatigue

KW - Residual stress

KW - Shot peening

KW - Titanium alloy

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DO - 10.1016/j.ijfatigue.2008.10.004

M3 - 文章

AN - SCOPUS:59849087033

SN - 0142-1123

VL - 31

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EP - 893

JO - International Journal of Fatigue

JF - International Journal of Fatigue

IS - 5

ER -

Effect of shot peening on fretting fatigue of Ti811 alloy at elevated temperature

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