| Crack growth rates and microstructure feature of initiation region for very-high-cycle fatigue of a high-strength steel |
| Hu YP(胡远培); Sun CQ(孙成奇) ; Hong YS(洪友士)
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| Source Publication | FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(IF:2.555[JCR-2018],2.389[5-Year]) |
| 2018-08-01
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| Volume | 41Issue:8Pages:1717-1732 |
| ISSN | 8756-758X
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| Abstract | The S-N data up to very-high-cycle fatigue (VHCF) regime for a high-strength steel were obtained by fatigue tests under constant amplitude and variable amplitude (VA) via rotating bending and electromagnetic resonance cycling. Crack initiation for VHCF was from the interior of specimens, and the initiation region was carefully examined by scanning electron microscopy and transmission electron microscopy. Crack growth traces in the initiation region of fine-granular-area (FGA) were the first time captured for the specimens under VA cycling by rotating bending. The obtained crack growth rates in FGA were upwards to connect well with those in fish-eye region available in the literature and were associated well with the calculated equivalent crack growth rates in FGA. The observations of profile samples revealed that FGA is a nanograin layer for the specimens under VA cycling, which is a new evidence to support the previously proposed numerous cyclic pressing model. |
| Keyword | crack growth rate
crack initiation
fine-granular-area
high-strength steel
variable amplitude loading
very-high-cycle fatigue
|
| DOI | 10.1111/ffe.12811
|
| URL | 查看原文
|
| Indexed By | SCI
; EI
|
| Language | 英语
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| WOS ID | WOS:000437279500006
|
| WOS Keyword | CHROMIUM-BEARING STEEL
; LONG-LIFE FATIGUE
; N-GREATER-THAN-10(7) CYCLES
; ULTRASONIC FATIGUE
; METALLIC MATERIALS
; RESIDUAL-STRESSES
; MECHANISM
; BEHAVIOR
; PROPAGATION
; FAILURE
|
| WOS Research Area | Engineering, Mechanical
; Materials Science, Multidisciplinary
|
| WOS Subject | Engineering
; Materials Science
|
| Funding Organization | Strategic Priority Research Program of the Chinese Academy of Sciences [XDB22020201, XDB22040503]
; National Natural Science Foundation of China [11572325]
|
| Classification | 二类/Q1
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| Ranking | 1
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| Citation statistics |
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| Document Type | 期刊论文
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| Identifier | http://dspace.imech.ac.cn/handle/311007/77841
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| Collection | 非线性力学国家重点实验室
|
| Affiliation | 1.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
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Recommended Citation
GB/T 7714 |
Hu YP,Sun CQ,Hong YS. Crack growth rates and microstructure feature of initiation region for very-high-cycle fatigue of a high-strength steel[J]. FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,2018,41,8,:1717-1732.
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| APA |
胡远培,孙成奇,&洪友士.(2018).Crack growth rates and microstructure feature of initiation region for very-high-cycle fatigue of a high-strength steel.FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,41(8),1717-1732.
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| MLA |
胡远培,et al."Crack growth rates and microstructure feature of initiation region for very-high-cycle fatigue of a high-strength steel".FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES 41.8(2018):1717-1732.
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