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- Hwang Jiun-Ren
- Department of Mechanical Engineering, National Central University
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- Doong Ji-Liang
- Department of Mechanical Engineering, National Central University
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- Chen Chee-Chang
- Department of Mechanical Engineering, National Central University
説明
This paper describes the effect of laser welding process on the fatigue crack propagation in SPCC-CQ1 cold rolled steel. The influences of weld speed and gap width of butt joint on fatigue crack growth rate are considered. Strength of the weld joints is evaluated by a tensile test, while fatigue properties are investigated by fatigue crack propagation test based on linear elastic fracture mechanics. From the results, the added wire filler material had positive effect on the fatigue properties. Increasing welding speed or gap width will improve the resistance to fatigue crack growth because of fast cooling rate and refined equiaxed microstructure in fusion zone. Also, the fatigue crack growth rate of fusion zone and heat affected zone are lower than that of base metal. Transgranular fracture is the typical fracture mechanism and many secondary cracks appear in the fusion zone.
収録刊行物
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- Materials Transactions, JIM
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Materials Transactions, JIM 37 (8), 1443-1446, 1996
社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390282679223337216
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- NII論文ID
- 130003556830
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- COI
- 1:CAS:528:DyaK28Xmt1ShsLw%3D
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- ISSN
- 2432471X
- 09161821
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可