Microstructure based cracking behavior and life assessment of titanium alloy under very-high-cycle fatigue with elevated temperatures

Cheng Li; Wei Li; Liang Cai; Yucheng Zhang; Rui Sun; Xiaolong Li; Muhammad Imran Lashari; Usama Hamid; Xiaoming Ding; Ping Wang

doi:10.1016/j.ijfatigue.2022.106914

Microstructure based cracking behavior and life assessment of titanium alloy under very-high-cycle fatigue with elevated temperatures

Cheng Li, Wei Li^*, Liang Cai, Yucheng Zhang, Rui Sun, Xiaolong Li, Muhammad Imran Lashari, Usama Hamid, Xiaoming Ding, Ping Wang

^*Corresponding author for this work

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

17 Citations (Scopus)

Abstract

High and very high cycle fatigue tests for TC11 titanium alloy were performed to clarify the interior cracking behavior under fully reversed and pulsating tension at three service temperatures. According to the estimation of threshold values for small and long crack growth, the fatigue design curves are established. Combined with electron backscatter diffraction and fracture mechanics analysis, the interior cracking is closely related to grain strength and size, and microtexture. The interior failure is attributed to the facet formation caused by larger α_p phase fracture. Based on FIP model, a temperature-based method is proposed to predict the crack nucleation life.

Original language	English
Article number	106914
Journal	International Journal of Fatigue
Volume	161
DOIs	https://doi.org/10.1016/j.ijfatigue.2022.106914
Publication status	Published - Aug 2022

Keywords

Elevated temperature
Failure mechanism
Life prediction
Very high cycle fatigue
α+β type titanium alloy

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10.1016/j.ijfatigue.2022.106914

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title = "Microstructure based cracking behavior and life assessment of titanium alloy under very-high-cycle fatigue with elevated temperatures",

abstract = "High and very high cycle fatigue tests for TC11 titanium alloy were performed to clarify the interior cracking behavior under fully reversed and pulsating tension at three service temperatures. According to the estimation of threshold values for small and long crack growth, the fatigue design curves are established. Combined with electron backscatter diffraction and fracture mechanics analysis, the interior cracking is closely related to grain strength and size, and microtexture. The interior failure is attributed to the facet formation caused by larger αp phase fracture. Based on FIP model, a temperature-based method is proposed to predict the crack nucleation life.",

keywords = "Elevated temperature, Failure mechanism, Life prediction, Very high cycle fatigue, α+β type titanium alloy",

author = "Cheng Li and Wei Li and Liang Cai and Yucheng Zhang and Rui Sun and Xiaolong Li and {Imran Lashari}, Muhammad and Usama Hamid and Xiaoming Ding and Ping Wang",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = aug,

doi = "10.1016/j.ijfatigue.2022.106914",

language = "English",

volume = "161",

journal = "International Journal of Fatigue",

issn = "0142-1123",

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TY - JOUR

T1 - Microstructure based cracking behavior and life assessment of titanium alloy under very-high-cycle fatigue with elevated temperatures

AU - Li, Cheng

AU - Li, Wei

AU - Cai, Liang

AU - Zhang, Yucheng

AU - Sun, Rui

AU - Li, Xiaolong

AU - Imran Lashari, Muhammad

AU - Hamid, Usama

AU - Ding, Xiaoming

AU - Wang, Ping

PY - 2022/8

Y1 - 2022/8

N2 - High and very high cycle fatigue tests for TC11 titanium alloy were performed to clarify the interior cracking behavior under fully reversed and pulsating tension at three service temperatures. According to the estimation of threshold values for small and long crack growth, the fatigue design curves are established. Combined with electron backscatter diffraction and fracture mechanics analysis, the interior cracking is closely related to grain strength and size, and microtexture. The interior failure is attributed to the facet formation caused by larger αp phase fracture. Based on FIP model, a temperature-based method is proposed to predict the crack nucleation life.

AB - High and very high cycle fatigue tests for TC11 titanium alloy were performed to clarify the interior cracking behavior under fully reversed and pulsating tension at three service temperatures. According to the estimation of threshold values for small and long crack growth, the fatigue design curves are established. Combined with electron backscatter diffraction and fracture mechanics analysis, the interior cracking is closely related to grain strength and size, and microtexture. The interior failure is attributed to the facet formation caused by larger αp phase fracture. Based on FIP model, a temperature-based method is proposed to predict the crack nucleation life.

KW - Elevated temperature

KW - Failure mechanism

KW - Life prediction

KW - Very high cycle fatigue

KW - α+β type titanium alloy

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U2 - 10.1016/j.ijfatigue.2022.106914

DO - 10.1016/j.ijfatigue.2022.106914

M3 - Article

AN - SCOPUS:85128508916

SN - 0142-1123

VL - 161

JO - International Journal of Fatigue

JF - International Journal of Fatigue

M1 - 106914

ER -

Microstructure based cracking behavior and life assessment of titanium alloy under very-high-cycle fatigue with elevated temperatures

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Keywords

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