Journal ArticleDOI
Third generation of AHSS with increased fraction of retained austenite for the automotive industry
TLDR
In this paper, the results of the multi-stage compression tests and multiphase microstructures obtained as a result of the controlled multi-phase cooling were presented, and it was found that the hot workability of new generation of AHSS is very challenging due to high values of flow stresses required.About:
This article is published in Archives of Civil and Mechanical Engineering.The article was published on 2012-09-01. It has received 124 citations till now. The article focuses on the topics: Bainite & Austenite.read more
Citations
More filters
Journal ArticleDOI
Grain boundary segregation engineering and austenite reversion turn embrittlement into toughness: Example of a 9 wt.% medium Mn steel
TL;DR: In this article, the authors studied grain boundary embrittlement in a quenched and tempered Fe-Mn high-purity model martensite alloy using Charpy impact tests and grain boundary characterization by atom probe tomography.
Journal ArticleDOI
A review of friction stir welding of steels: tool, material flow, microstructure, and properties
TL;DR: Friction stir welding (FSW) of steels has reached a new level of technical maturity with the development of reliable welding tools and precise control systems in the past two decades as mentioned in this paper.
Journal ArticleDOI
Microstructure-mechanical property relationship and austenite stability in medium-Mn TRIP steels: The effect of austenite-reverted transformation and quenching-tempering treatments
TL;DR: In this paper, the authors explored the reasons underlying differences in mechanical properties in hot-rolled 0.2C-1.6Al-6.1Mn-Fe TRIP steels subjected to different heat treatments.
Journal ArticleDOI
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.
Journal ArticleDOI
Morphology change of retained austenite during austempering of carbide-free bainitic steel
TL;DR: In this paper, a change in the mechanical properties of a carbide-free bainitic steel was observed during prolonged holding at austempering temperature after termination of the bainite transformation, and the microstructure was investigated by correlative electron microscopy.
References
More filters
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.
Journal ArticleDOI
Retained Austenite Characteristics and Tensile Properties in a TRIP Type Bainitic Sheet Steel
TL;DR: In this article, the transformation induced plasticity (TRIP) of the retained austenite was investigated in a 0.2C-1.5Si-mn, mass, high-strength cold-rolled TRIP type bainitic steel.
Journal ArticleDOI
Characterisation and Quantification of Complex Bainitic Microstructures in High and Ultra-High Strength Linepipe Steels
TL;DR: In this article, a detailed description of complex bainitic microstructures obtained during the recent development of low carbon linepipe steels with strengths in the range of X100 to X120 is provided.
Journal ArticleDOI
Effects of Silicon and Manganese Addition on Mechanical Properties of High-strength Hot-rolled Sheet Steel Containing Retained Austenite
TL;DR: An 80 kgf/mm2 grade high-strength hot-rolled sheet steel with a significantly high product of tensile strength and total elongation (TS×EI=3 000) has been developed by utilizing transformation-induced plasticity of retained austenite in 0.2% carbon sheet steels by optimizing the silicon and manganese content and hot rolling conditions as discussed by the authors.
Journal ArticleDOI
Continuous cooling transformation diagrams and properties of micro-alloyed TRIP steels
TL;DR: In this article, the CCT diagrams exhibited that as the carbon equivalent (CE) increased, it caused a shift of the ferrite forming and pearlite forming temperatures to the right side and the bainite forming and martensite forming to the lower temperatures of the diagram.