@inproceedings{d7ba36424fd04d32bcab16781754ff1a,
title = "Effects of warm working on microstructural and shear deformation properties of TRIP-aided martenitic steel",
abstract = "The effects of warm working on microstructural, retained austenite characteristics and shear deformation properties of 0.2C-1.5Si-1.5Mn-1.0Cr-0.2Mo TRIP-aided martensitic (TM) steel for applications to automotive frame and forging parts were investigated. When warm working at 550 oC and post cooling at 1 oC/s was conducted to the TM steel, volume fractions of retained austenite and martensite-austenite constituent phase increased and mixture matrix of ultra fine granular bainitic ferrite and fine bainitic ferrite lath was obtained, whereas microstructure of TM steel warm worked at 750 oC exhibited granular bainitic ferrite matrix. These were caused by the dynamic recrystallization and the promotion of bainitic transformation of austenite due to the worm forging at 550 oC with the post cooling rate of 1 oC/s. Maximum shear stress decreased and total shear displacement increased with decreasing working temperature in TM steel. These were caused by the effective strain induced transformation of a large amount of retained austenite and the refined matrix structure.",
keywords = "Retained austenite, Shear deformation properties, TRIP-aided martensitic steel, Ultra fine grain, Warm working",
author = "Tomohiko Hojo and Takuya Kochi and Sugimoto, {Koh Ichi}",
note = "Publisher Copyright: {\textcopyright} 2017 Trans Tech Publications, Switzerland.; 9th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2016 ; Conference date: 29-05-2016 Through 03-06-2016",
year = "2017",
doi = "10.4028/www.scientific.net/MSF.879.2312",
language = "English",
isbn = "9783035711295",
series = "Materials Science Forum",
publisher = "Trans Tech Publications Ltd",
pages = "2312--2317",
editor = "Christof Sommitsch and Mihail Ionescu and Brajendra Mishra and Brajendra Mishra and Ernst Kozeschnik and T. Chandra",
booktitle = "THERMEC 2016",
}