Assessment of fatigue life and crack growth resistance of friction stir welded AISI 409M ferritic stainless steel joints

Lakshminarayanan, A.K.; Balasubramanian, V.

doi:10.1016/j.msea.2012.01.071

Cited by 54 publications

(31 citation statements)

References 32 publications

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“…Other research work followed in 2009 and 2012 on mild steel and HSLA-65 confirming the ability of FSW to weld steel Failla [5], Lakshiminarayan and Balasubramanian [6].…”

Section: Friction Stir Welding Of Shipbuilding Steel With Primermentioning

confidence: 72%

“…On the other hand, the fine martensitic structure observed is known to be efficient in reducing early crack nucleation, (Lakshminarayanan and Balasubramanian [6]), which may improve the fatigue resistance of welded joints in the referred stress ranges. Comparing FSW with other studies performed with the same steel (EH36) using fusion welding processes, even with a direct FSW competitor, Hybrid Laser Welding, the results from FSW tests are globally better in terms of fatigue strength, in the stress ranges tested.…”

Section: Fatigue Tests Analysismentioning

confidence: 99%

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Friction Stir Welding of Shipbuilding Steel with Primer

Azevedo¹,

Quintino²,

Infante

et al. 2016

Soldag. insp.

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Friction Stir Welding has proven its merits for welding of aluminium alloys and is focused in expanding its material database to steel and titanium and also to assess new joint configurations. The use of welded structures in shipbuilding industry has a long tradition and continuously seeks for innovation in terms of materials and processes maintaining, or even, reducing costs. Several studies have been performed in the past years on FSW of steel. However, just recently were reported defect-free welds, free of martensite with stable parameters in steel without Primer. FSW of steel with primer has not been addressed. This work aims to fulfil a knowledge gap related to the use of friction stir for welding shipbuilding steel by analysing the effect of welding parameters on the metallurgical characteristics and mechanical properties of welds obtained with an innovative FSW tool in joining steel plates with a primer. Welds were performed in 4mm thick GL-A36 steel plates painted with a zinc based primer followed by a detailed microscopic, chemical and mechanical analysis. The results that matching fatigue properties are obtained using this technique, in FSW of shipbuilding steel with Primer.

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“…Other research work followed in 2009 and 2012 on mild steel and HSLA-65 confirming the ability of FSW to weld steel Failla [5], Lakshiminarayan and Balasubramanian [6].…”

Section: Friction Stir Welding Of Shipbuilding Steel With Primermentioning

confidence: 72%

Section: Fatigue Tests Analysismentioning

confidence: 99%

Friction Stir Welding of Shipbuilding Steel with Primer

Azevedo¹,

Quintino²,

Infante

et al. 2016

Soldag. insp.

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“…마찰교반용접(FSW)은 고속으로 회전하는 비소모성 툴(Tool)을 피접합재에 삽입하여 툴과 피접합재와의 마 찰에 의해 발생한 열과 마찰열에 의해 연화된 피접합재 의 소성유동을 이용하는 용접공정으로 1) , 1991년 영국 의 TWI(The Welding Institute)에 의해서 개발된 이래 불과 이십 여 년 밖에 되지 않은 새로운 용접 방 법임에도 불구하고, 공정 중에 용융 및 응고 과정을 수 반하지 않는 고상(Solid state) 용접공정이어서 용접부 의 기계적 특성이 우수할 뿐 아니라 [2][3][4] , 기존의 용융용 접 방법으로는 건전한 용접부를 얻기 어려웠던 난용접 성 금속소재에 대한 용접성능을 인정받아 알루미늄합 금, 마그네슘합금과 같은 경량금속의 용접공정으로 각 광을 받고 있으며 [5][6][7] , 탄소강, 고강도강, 스테인레스 스 틸 및 타이타늄합금 등 고융점 금속재료에의 적용 가능 성이 폭넓게 검토되고 있다 [8][9][10] . 최근에는 .…”

Section: 서 론unclassified

Recent Research & Development Trend on Friction Stir Welding and Friction Stir Processing

Lee¹

2013

Journal of the Korean Welding and Joining Society

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The latest research & development trend on friction stir welding and friction stir processing technologies presented in the international symposium, 'Friction Stir Welding & Processing Ⅶ'. Papers and presentations about high temperature materials such as advanced high strength steel, stainless steel and titanum alloy shoot up this year. Papers on modeling of metal flow and control of process parameters also increased. The FSP technologies for manufacturing of carbon materials reinforced metal matrix composites were reported, too.

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“…Although this aluminium focussed research employs only two welding speeds for FSW, thus limiting the value of the analysis, the fatigue strength of FSW is found to be practically unaffected by speed increasing within the industrially acceptable range [4]. A thorough study [5] on the FSW of stainless steel examines the fatigue behaviour of welded AISI 409M ferritic stainless steel with regard to the parent material (PM) properties. The original coarse PM grains are seen to be transformed by FSW into a refined ferrite / martensite banded structure of significantly higher hardness.…”

Section: Introductionmentioning

confidence: 99%

“…The original coarse PM grains are seen to be transformed by FSW into a refined ferrite / martensite banded structure of significantly higher hardness. The resultant dual phase microstructure is responsible for an improvement to fatigue life with regard to the PM; this is attributed to the superior tensile properties and an advantageous post-weld residual stress distribution [5].…”

Section: Introductionmentioning

confidence: 99%