Journal ArticleDOI
Microstructure and microhardness of fiber laser butt welded joint of stainless steel plates
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In this paper, the weld appearance, microstructure, composition distribution and microhardness of welded joint were investigated with a YLR-6000 fiber laser under Ar protective gas, and the results showed that the narrow and fully penetrated welded joints without marco-defects can be obtained with tightly focused 2kW fiber laser power and 20mm/s welding speed.About:
This article is published in Materials & Design.The article was published on 2013-08-01. It has received 42 citations till now. The article focuses on the topics: Butt welding & Welding.read more
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Optimization of deep penetration laser welding of thick stainless steel with a 10kW fiber laser
TL;DR: In this paper, the effect of the processing parameters on the weld bead geometry was examined, and the microstructure and mechanical properties of the optimal joint were investigated, showing that the focal position is a key parameter in high power fiber laser welding of thick plates.
Journal ArticleDOI
Microstructure and fatigue properties of fiber laser welded dissimilar joints between high strength low alloy and dual-phase steels
TL;DR: In this article, the microstructure and fatigue properties of welded joints made with fiber laser welding (FLW) on a high strength low alloy (HSLA) and dual-phase (DP980, UTS-⩾-980-MPa) steel in similar and dissimilar material combinations were evaluated.
Journal ArticleDOI
Effect of water depth on weld quality and welding process in underwater fiber laser welding
TL;DR: In this paper, a series of experiments under various water depths were performed using an optical fiber laser without draining the welding zone to study the effect of water depth on the laser welding.
Journal ArticleDOI
Microstructure characteristics of thick aluminum alloy plate joints welded by fiber laser
TL;DR: In this article, the microstructure comparison of Al-Mg-Mn alloy and Al-Zn-mg-mn alloy welded joints reveals that a huge amount of fine equiaxed grains are formed in the weld zone of Zr and Er micro-alloying Al−Mg−Mn welding wire and a great number of precipitation strengthening phases are precipitated in the welding zone after the heat treatment of welded joint in the entirety.
Journal ArticleDOI
Microstructure and mechanical properties of fiber laser welded joints of ultrahigh-strength steel 22MnB5 and dual-phase steels
TL;DR: In this article, the microstructure, microhardness, tensile and fatigue performance of the welded joints performed by a fiber laser on 22MnB5 and dual-phase steels (DP590, DP980) in similar and dissimilar combinations was analyzed.
References
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Journal ArticleDOI
The Deformation and Ageing of Mild Steel: III Discussion of Results
TL;DR: In this paper, an attempt is made to explain the observed phenomena in the yielding and ageing of mild steel, described in two previous papers, in the general terms of a grain-boundary theory.
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Study on microstructure and mechanical properties of 304 stainless steel joints by TIG, laser and laser-TIG hybrid welding
Jun Yan,Ming Gao,Xiaoyan Zeng +2 more
TL;DR: In this article, the microstructure and mechanical properties of 304 stainless steel joints by tungsten inert gas (TIG) welding, laser welding and laser-TIG hybrid welding were investigated.
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Microstructure and tensile properties of Inconel 718 pulsed Nd-YAG laser welds
TL;DR: Pulsed Nd-YAG laser welding characteristics of Inconel 718 sheet material (2.mm thick) were investigated in this article, where Weld microstructures and room temperature tensile properties were evaluated.
Journal ArticleDOI
Sensitivity of stress corrosion cracking of stainless steel to surface machining and grinding procedure
Alan Turnbull,Ken Mingard,J.D. Lord,Bryan Roebuck,D R Tice,K J Mottershead,N D Fairweather,A K Bradbury +7 more
TL;DR: In this paper, the effect of surface preparation method on the susceptibility of a 304H stainless steel to stress corrosion cracking under simulated atmospheric corrosion conditions was investigated, where MgCl2 was deposited onto four-point bend specimens, which were then placed in a chamber with a relative humidity of 45% and temperature of 60 °C.