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Title:
Application of millisecond pulsed laser for thermal fatigue property evaluation
Author: Pan SN(潘斯宁); Yu G(虞钢); Li SX(李少霞); He XL(何秀丽); Xia CY(夏春阳); Ning WJ(宁伟健); Zheng CY(郑彩云)
Source: OPTICS AND LASER TECHNOLOGY
Issued Date: 2018-02-01
Volume: 99, Pages:382-391
Abstract: An approach based on millisecond pulsed laser is proposed for thermal fatigue property evaluation in this paper. Cyclic thermal stresses and strains within millisecond interval are induced by complex and transient temperature gradients with pulsed laser heating. The influence of laser parameters on surface temperature is studied. The combination of low pulse repetition rate and high pulse energy produces small temperature oscillation, while high pulse repetition rate and low pulse energy introduces large temperature shock. The possibility of application is confirmed by two thermal fatigue tests of compacted graphite iron with different laser controlled modes. The developed approach is able to fulfill the preset temperature cycles and simulate thermal fatigue failure of engine components. (C) 2017 Elsevier Ltd. All rights reserved.
Keyword: Millisecond pulsed laser ; Thermal fatigue ; Cast iron ; Crack evolution
Language: 英语
Indexed Type: SCI ; EI
DOI: 10.1016/j.optlastec.2017.09.026
DOC Type: Article
WOS Subject: Optics ; Physics, Applied
WOS Subject Extended: Optics ; Physics
WOS Keyword Plus: HIGH-CYCLE FATIGUE ; CLOSED-FORM SOLUTION ; CAST-IRON ; THERMOMECHANICAL FATIGUE ; TEMPERATURE ; PARAMETER ; SHOCK
WOS ID: WOS:000413878600047
ISSN: 0030-3992
Funder: National Natural Science Foundation of China(11272316 ; 11502269 ; 11672304 ; 11272317)
Department: MAM激光智能制造工艺力学
Classification: 二类
Ranking: 1
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/71928
Appears in Collections:先进制造工艺力学重点实验室_期刊论文

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Recommended Citation:
Pan SN,Yu G,Li SX,et al. Application of millisecond pulsed laser for thermal fatigue property evaluation[J]. OPTICS AND LASER TECHNOLOGY,2018-02-01,99:382-391.
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