Journal of Advanced Materials and Technologies

Journal of Advanced Materials and Technologies

Effect of Partitioning Time and Temperature during Q&P Process on Mechanical Properties of 1.5142 Steel

Document Type : Original Reaearch Article

Authors
Abdollah Shirali
Abbas Honarbakhsh Rauf
Soheila Bazzaz Bonabi
Mohammad Ebrahim Hasani
Mahdi Karam Abyan
Department of Metallurgy and Materials Engineering, Semnan University, Semnan, Iran
10.30501/jamt.2635.70267
Abstract
Safety, economical and environmental problemsin automotive industry are leading to the development of advanced high strength steels (AHSS) with improved mechanical properties. One of the newest and most promising heat treatments for the production of AHSS is quenching and partitioning (Q&P) process. The application of this new process in various times and temperatures leads to interesting combinations of mechanical properties including high strength and good ductility. In this study,variations of mechanical properties influenced by variation of partitioning time and temperature on 1.5142 steel was investigated. The results showed that application of Q&P process on the steel causes severe increasing of hardness. Increasing of partitioning time and also temperature leads to decreasing of hardness and increasing of  elongation. With increasing of partitioning time, tensile strength initially increases and then decreases,However, increasing of partitioning temperature leads to decreasing of strength and increasing of elongation and ductility.
Keywords
Q&P
partitioning
retained austenite
strength
elongation
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  • Receive Date 23 November 2013
  • Revise Date 15 July 2014
  • Accept Date 16 July 2014