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Steels, Microstructure and Properties
TLDR
In this article, the authors studied the effects of alloying elements in iron-carbon alloys and the formation of martensite, bainite reaction and acicular ferrite reaction.Abstract:
Iron and its interstitial solid solutions * The strengthening of iron and its alloys * The iron-carbon equilibrium diagram and plain carbon steels * The effects of alloying elements in iron-carbon alloys * Formation of martensite * The bainite reaction * Acicular ferrite * The heat treatment of steels - hardenability * The tempering of martensite * Commercial Steels: New material to include Nanostructured Steels, Steels for the Energy and Automobile Industries * The embrittlement and fracture of steels * Stainless steel * Weld microstructures * Modelling of microstructure and properties *read more
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Failure mode transition in AHSS resistance spot welds. Part II: Experimental investigation and model validation
TL;DR: In this article, the authors investigated and analyzed the transition criteria from interfacial to pullout failure mode in AHSS resistance spot welds during the tensile-shear test by the use of both experimental and analytical approaches.
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Stability of retained austenite in multi-phase microstructure during austempering and its effect on the ductility of a low carbon steel
TL;DR: The work hardening behavior of retained austenite exhibited a three-stage process such that necking was delayed as mentioned in this paper, which was attributed to the multi-phase microstructure and TRIP effect.
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Development of rapid heating and cooling (flash processing) process to produce advanced high strength steel microstructures
TL;DR: In this paper, a steel microstructure with a high tensile strength and good ductility similar to that of advanced high strength steels was constructed using flash processing of an AISI8620 steel sheet, which involves rapid heating and cooling with an overall process duration of <10 s.
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Modeling the effect of grain size and dislocation density on hysteretic magnetic properties in steels
TL;DR: In this paper, the Jiles-Atherton model is modified to elucidate the variation of magnetic properties with grain size and dislocation density, and the modified model predicts generally that coercive field increases with increasing dislocations density and inverse grain size.
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Experimental analysis of strain path dependent ductile damage mechanics and forming limits
TL;DR: In this article, the influence of damage evolution on localization and eventually ductile fracture in different strain paths is investigated. But, the authors focus on single phase microstructures with limited damage sources, and therefore do not have a significant role on the forming limits.