| Prediction of threshold value for FGA formation |
| Zhao AG(赵爱国) ; Xie JJ(谢季佳); Sun CQ(孙成奇); Lei ZQ(雷铮强); Hong YS(洪友士); Hong, YS (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
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| 发表期刊 | Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing
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| 2011
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| 卷号 | 528期号:22-23页码:6872-6877 |
| ISSN | 0921-5093
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| 摘要 | This paper studies the formation mechanism of fine granular area (FGA) in high-strength steels and predicts the threshold value of its formation. Fatigue experiments are carried out by using rotating bending and ultrasonic fatigue testing machines on a high carbon chromium steel (GCr15) with three different heat treatments. The results show that the range of stress intensity factor at the periphery of FGA (Delta K(FGA)) keeps constant with an average value of 5.2 MPa m(1/2), which is close to the traditional crack growth threshold (Delta K(th,0)), 5.0 MPa m(1/2). A theoretical model based on the plastic zone at crack tip is proposed to predict the value of Delta K(FGA) and the predictions are in good agreement with experimental data. (C) 2011 Elsevier B.V. All rights reserved. |
| 关键词 | Very High Cycle Fatigue
Fga
Crack Growth Threshold
Frequency Effect
Stress Intensity Factor
High-cycle Fatigue
Subsurface Crack Initiation
Chromium-bearing Steel
High-strength Steels
Long-life Fatigue
Propagation Mechanism
Ultrasonic Frequency
Fracture Surface
Aluminum-alloys
Vhcf Regime
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| 学科领域 | Science & Technology - Other Topics
; Materials Science
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| DOI | 10.1016/j.msea.2011.05.070
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| URL | 查看原文
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000293363100027
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| 关键词[WOS] | HIGH-CYCLE FATIGUE
; SUBSURFACE CRACK INITIATION
; CHROMIUM-BEARING STEEL
; HIGH-STRENGTH STEELS
; LONG-LIFE FATIGUE
; PROPAGATION MECHANISM
; ULTRASONIC FREQUENCY
; FRACTURE SURFACE
; ALUMINUM-ALLOYS
; VHCF REGIME
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| WOS研究方向 | Science & Technology - Other Topics
; Materials Science
; Metallurgy & Metallurgical Engineering
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| WOS类目 | Nanoscience & Nanotechnology
; Materials Science, Multidisciplinary
; Metallurgy & Metallurgical Engineering
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| 项目资助者 | This paper was supported by the National Natural Science Foundation of China (nos. 10772178 and 10721202) and the Knowledge Innovation Program of the Chinese Academy of Sciences (no. KJCX2-YW-L07).
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| 课题组名称 | LNM金属材料微结构与力学性能
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| 论文分区 | 一类
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/44914
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| 专题 | 非线性力学国家重点实验室
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| 通讯作者 | Hong, YS (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
推荐引用方式
GB/T 7714 |
Zhao AG,Xie JJ,Sun CQ,et al. Prediction of threshold value for FGA formation[J]. Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing,2011,528,22-23,:6872-6877.
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| APA |
赵爱国,谢季佳,孙成奇,雷铮强,洪友士,&Hong, YS .(2011).Prediction of threshold value for FGA formation.Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing,528(22-23),6872-6877.
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| MLA |
赵爱国,et al."Prediction of threshold value for FGA formation".Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 528.22-23(2011):6872-6877.
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