Evolution of Microstructure in a Low-Si Micro-alloyed Steel Processed Through One-Step Quenching and Partitioning

Bansal, G.K. and Pradeep, M and Ghosh, C and Rajinikanth, V and Srivastava, V C and Bhagat, A N and Kundu, S (2019) Evolution of Microstructure in a Low-Si Micro-alloyed Steel Processed Through One-Step Quenching and Partitioning. Metallurgical and Materials Transactions A, 50(2) . pp. 547-555.

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Abstract

An attempt has been made in the current study to investigate the possibility of austenite retention in 0.5 wt pct Si steel without Al, processed through the one-step Q&P technique. The XRD and microstructural analysis confirmed austenite retention (maximum of 5.73 ± 0.16 vol pct), which showed thin film and blocky morphologies. The experimental amount of retained austenite was found to increase with the increasing quench temperature; however, it was almost independent of partitioning time. The carbon content in the retained austenite did not show any significant variation, after Q&P treatment for different time–temperature combinations. The hardness was found to be sensitive to quench temperature than the partitioning time.

Item Type:Article
Official URL/DOI:https://link.springer.com/article/10.1007/s11661-0...
Uncontrolled Keywords:XRD and microstructural analysis,Si steel without Al,austenite retention,thin film and blocky morphologies
Divisions:Metal Extraction and Forming
ID Code:7782
Deposited By:Sahu A K
Deposited On:28 Mar 2019 09:50
Last Modified:28 Mar 2019 09:50
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