Journal ArticleDOI
Tensile and fatigue properties of fiber laser welded high strength low alloy and DP980 dual-phase steel joints
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In this paper, the microstructure and mechanical properties of high-speed fiber laser welded high strength low alloy (HSLA) and DP980 dual-phase steel joints with varying weld geometries were evaluated.About:
This article is published in Materials & Design.The article was published on 2013-01-01. It has received 115 citations till now. The article focuses on the topics: Fatigue limit & High-strength low-alloy steel.read more
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Laser, tungsten inert gas, and metal active gas welding of DP780 steel: Comparison of hardness, tensile properties and fatigue resistance
TL;DR: In this paper, the microstructural properties, tensile properties and low-cycle fatigue properties of a dual-phase steel (DP780) were investigated following its joining by three methods: laser welding, tungsten inert gas (TIG) welding, and metal active gas (MAG) welding.
Journal ArticleDOI
Microstructure-properties correlation in fiber laser welding of dual-phase and HSLA steels
TL;DR: In this article, the microstructure, micro-and nano-hardness, and tensile properties of dual-phase (DP) and high strength low alloy (HSLA) steels were characterized by fiber laser welding (FLW).
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
Comparison of microstructure and mechanical properties of ultra-narrow gap laser and gas-metal-arc welded S960 high strength steel
TL;DR: In this article, the microstructural characteristics and mechanical properties, including micro-hardness, tensile properties, three-point bending properties and Charpy impact toughness at different test temperatures of 8mm thick S960 high strength steel plates were investigated following their joining by multi-pass ultra-narrow gap laser welding (NGLW) and gas metal arc welding (GMAW) techniques.
Journal ArticleDOI
Microstructure and dynamic tensile behavior of DP600 dual phase steel joint by laser welding
TL;DR: In this article, the authors examined the rate-dependent mechanical properties, deformation and fracture behavior of dual phase (DP) steels and their welded joint (WJ) produced by Nd:YAG laser welding over a wide range of strain rates (0.001 −1133 −1 ).
References
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Journal ArticleDOI
Fatigue Crack Propagation of Short Cracks
TL;DR: In this article, the average growth rate for very short cracks considerably exceed those given by conventional stress intensity-crack growth laws fitted to long crack data, by introducing an effective crack length U into the solutions for intensity factors and the J integral method of analysis, and therefore the value of k can be obtained once the threshold stress intensity factor and the fatigue limit are known.
Journal ArticleDOI
Welding with high power fiber lasers – A preliminary study
TL;DR: In this paper, a brief review of the development of high power fiber laser is presented, and initial data on welding of API 5L: X100 pipeline steel with an 8kW fiber laser.
Journal ArticleDOI
Effects of Heat Input and Martensite on HAZ Softening in Laser Welding of Dual Phase Steels
TL;DR: In this article, the authors investigated the effects of heat input on heat affected zone (HAZ) softening in three dual-phase (DP) alloys with ultimate tensile strengths ranging from 450-980 MPa and varying microstructures.
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Microstructure and mechanical properties of laser welded dissimilar DP600/DP980 dual-phase steel joints
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