IMECH-IR  > 非线性力学国家重点实验室
The nature and the mechanism of crack initiation and early growth for very-high-cycle fatigue of metallic materials - An overview
Hong YS(洪友士); Sun CQ(孙成奇)
Source PublicationTHEORETICAL AND APPLIED FRACTURE MECHANICS
2017-12-01
Volume92Pages:331-350
ISSN0167-8442
Abstract

Very-high-cycle fatigue (VHCF) is the fatigue damage and failure beyond 107 loading cycles. Crack initiation of VHCF for metallic materials is commonly from the interior of specimens and possesses a unique feature of fish-eye (FiE) containing a fine-granular-area (FGA). It is regarded that FGA together with FiE is the characteristic region of crack initiation for VHCF, because it consumes more than 95% of total fatigue life and the value of stress intensity factor range for this region keeps constant for a given material. The aim of this overview is to summarize the research progress on the crack initiation characteristics and the related mechanisms for VHCF of metallic materials. After a brief introduction to the origination of VHCF research in 1980s, this overview contains the following parts: Characteristics of crack initiation region for VHCF, Characteristic region and intrinsic dimensions of crack initiation for VHCF, The formation mechanism and the model of crack initiation region, The new model of Numerous Cyclic Pressing to explain the formation mechanism of FGA, and Verification of proposed NCP model. In the descriptions, the two essential aspects are especially focused: the nature of crack initiation region for VHCF, and the mechanism for the formation of crack initiation region. (C) 2017 Elsevier Ltd. All rights reserved.

KeywordVery-high-cycle Fatigue Fatigue Crack Initiation Fine-granular-area Nanograins High-strength Steels Titanium Alloys
DOI10.1016/j.tafmec.2017.05.002
Indexed BySCI ; EI
Language英语
WOS IDWOS:000417774700033
WOS KeywordHIGH-STRENGTH STEELS ; CHROMIUM-BEARING STEEL ; REGIME N-GREATER-THAN-10(7) CYCLES ; SEVERE PLASTIC-DEFORMATION ; ION MASS-SPECTROMETRY ; LONG-LIFE FATIGUE ; S-N CURVE ; TI-6AL-4V ALLOY ; PROPAGATION MECHANISM ; ULTRASONIC FREQUENCY
WOS Research AreaEngineering ; Mechanics
WOS SubjectEngineering, Mechanical ; Mechanics
Funding OrganizationNational Natural Science Foundation of China(11572325) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB22040503 ; XDB22020201)
Classification一类
Ranking1
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/72224
Collection非线性力学国家重点实验室
Recommended Citation
GB/T 7714
Hong YS,Sun CQ. The nature and the mechanism of crack initiation and early growth for very-high-cycle fatigue of metallic materials - An overview[J]. THEORETICAL AND APPLIED FRACTURE MECHANICS,2017,92:331-350.
APA 洪友士,&孙成奇.(2017).The nature and the mechanism of crack initiation and early growth for very-high-cycle fatigue of metallic materials - An overview.THEORETICAL AND APPLIED FRACTURE MECHANICS,92,331-350.
MLA 洪友士,et al."The nature and the mechanism of crack initiation and early growth for very-high-cycle fatigue of metallic materials - An overview".THEORETICAL AND APPLIED FRACTURE MECHANICS 92(2017):331-350.
Files in This Item: Download All
File Name/Size DocType Version Access License
Jp-2018-010.pdf(7940KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[洪友士]'s Articles
[孙成奇]'s Articles
Baidu academic
Similar articles in Baidu academic
[洪友士]'s Articles
[孙成奇]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[洪友士]'s Articles
[孙成奇]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Jp-2018-010.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.