Influence of Cr, Mn and Mo Addition on Structure and Properties of V Microalloyed Medium Carbon Steels | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

3696381

Reference Type

Journal Article

Title

Influence of Cr, Mn and Mo Addition on Structure and Properties of V Microalloyed Medium Carbon Steels

Author(s)

Fadel, A; Glisic, D; Radovic, N; Drobnjak, D

Year

2012

Is Peer Reviewed?

Yes

Journal

Journal of Materials Science & Technology
ISSN: 1005-0302

Volume

Issue

Page Numbers

1053-1058

Web of Science Id

WOS:000313142100014

Abstract

The effect of austenitizing temperature and Cr, Mo and Mn addition on microstructure and mechanical properties of V microalloyed medium carbon steel has been studied by means of metallography and mechanical testing. The addition of Cr, Mn and Mo leads to a decrease in yield strength (YS) by approximate 100 MPa in comparison to the base steel. It is assumed that Mn and Mo increase hardenability by promoting the formation of bainitic sheaves (BS), i.e. by suppressing the formation of ferrite-pearlite and acicular ferrite (FP-AF). Cr at the level used in this work is not that effective. Presence and packet size of bainitic sheaves decrease the Charpy V-notch impact energy at 20 degrees C (CVN20) in comparison to ferrite-pearlite and acicular ferrite microstructures.

Keywords

Medium-carbon steels; Chromium; Molybdenum; Manganese addition; Bainite; Acicular ferrite