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作者:

Chen, Chao -Lin (Chen, Chao -Lin.) | Shang, De-Guang (Shang, De-Guang.) (学者:尚德广) | Tang, Zhi-Qiang (Tang, Zhi-Qiang.) | Li, Dao-Hang (Li, Dao-Hang.) | Yin, Xiang (Yin, Xiang.) | Guo, Yi-Er (Guo, Yi-Er.)

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EI Scopus SCIE

摘要:

The failure mechanism of Ti60 titanium alloy in the high cycle fatigue (HCF) and very high cycle fatigue (VHCF) at different temperatures was investigated. The results showed that, at different temperatures, there are two different fatigue failure mechanisms, i.e., the oversized facet and oxide shedding failure mechanisms. At room temperature, most of the fatigue cracks initiate at the oversized facet. At 300 degrees C, the crack initiates at the oversized facet for the test with small applied stress, while the crack initiates at the oxide shedding site for the test with large applied stress. At 400 degrees C, all the fatigue cracks initiate at the oxide shedding site. Higher temperature and stress will be conducive to the failure mechanism of oxide shedding to become dominant.

关键词:

Oxide shedding High temperature Fatigue failure mechanism Very -high -cycle fatigue Oversized facet

作者机构:

  • [ 1 ] [Chen, Chao -Lin]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 2 ] [Shang, De-Guang]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 3 ] [Tang, Zhi-Qiang]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 4 ] [Li, Dao-Hang]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 5 ] [Yin, Xiang]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 6 ] [Guo, Yi-Er]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China

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来源 :

ENGINEERING FAILURE ANALYSIS

ISSN: 1350-6307

年份: 2023

卷: 151

4 . 0 0 0

JCR@2022

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SCOPUS被引频次: 11

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