Journal ArticleDOI
Characteristics of Nd:YAG laser welded joints of dual phase steel
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In this article, the microstructure of welded joints is mainly composed of lath martensite in the weld and a mixture of bainite and ferrite in the heat affected zone (HAZ).About:
This article is published in Archives of Civil and Mechanical Engineering.The article was published on 2009-01-01. It has received 19 citations till now. The article focuses on the topics: Weldability & Heat-affected zone.read more
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Dilatometric study of phase transformations in advanced high-strength bainitic steel
TL;DR: In this paper, dilatometric studies of a new-developed advanced high-strength bainitic 3Mn-1.5Al steel were carried out using a dilatometer within the cooling rate range of 2 − 0.5 ǫ s−1.
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Microstructure Characterization of Laser-Welded Nb-Microalloyed Silicon-Aluminum TRIP Steel
TL;DR: In this paper, the results of a microstructural characterization of welds in Nb-microalloyed TRIP steel with silicon partially replaced by aluminum were presented, and the effect of cooling conditions on the stabilization of retained austenite in different zones.
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Microstructural Characterization and Mechanical Properties of Electron Beam Welded Joint of High Strength Steel Grade S690QL
TL;DR: In this paper, the results of metallographic examination and mechanical properties of electron beam welded joint of quenched and tempered steel grade S690QL are presented, which revealed that the concentrated electron beam significantly affect the changes of microstructure in the steel.
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Structure and properties of an Al alloy in as-cast state and after laser treatment
TL;DR: In this paper, thermal analysis, metallurgical characterization, and laser treatment of an aluminium alloy were performed to improve the mechanical properties and wear resistance of the surface layer, and the tested alloys were subjected to surface treatment using a HPDL laser.
References
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Journal ArticleDOI
Advanced high strength steels for automotive industry
TL;DR: In this article, the basic concepts of advanced high strength steels (AHSS) for use in the automobile industry, including chemical composition design, microstructure and mechanical properties development during thermomechanical processing, production technology characterisation, potential applications and performance in service, are presented.
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Cold-rolled, high-strength sheet steels for auto applications
TL;DR: In this paper, a review of traditional strengthening concepts and more recently developed concepts (e.g., bake hardening and strengthening of interstitial-free steels) are reviewed. And the future in steel development will be determined by the physical modeling of properties and by adapting new process routes such as thin slab casting and in-line rolling.
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Fatigue behavior of tailor (laser)-welded blanks for automotive applications
TL;DR: In this article, the fatigue behavior of tailor-welded blanks (TWBs) with and without zinc coating was evaluated and the results showed that TWBs made from zinc-coated/galvanized steels exhibited a lower fatigue limit as compared with the TWB combination from uncoated bare metals.
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Characteristics of Nd:YAG Laser Welded 600MPa Grade TRIP and DP Steels
TL;DR: In this paper, the characteristics of Nd:YAG laser welded 600MPa grade TRIP and DP steels with respect to hardness, microstructures, mechanical properties and formability were investigated.
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Influence of martensite volume fraction on fatigue limit of a dual-phase steel
M. Sarwar,R. Priestner,E. Ahmad +2 more
TL;DR: In this article, the effect of microstructures, volume fraction of martensite, and epitaxial ferrite on fatigue limit was investigated in a steel containing 0.16 C (wt.%) by careful design of the heat treatment schedule.