Paper Title:
Microstructure and Properties of 31Mn2SiREB Cast Steel
  Abstract

Heat treatment process of 31Mn2SiREB cast steel used in crawler plates is directly quenching at 1050°C after casting. The reasonableness of the process needs to be surveyed. In this paper, the effect of quenching temperature on mechanical properties was studied, and the micro-area composition and micro-hardness at different quenching temperature were investigated. The results show that tensile strength and impact energy increase observably with the elevating of quenching temperature. With the increase of quenching temperature, the fluctuations of micro-hardness and chemical composition at different micro-areas become obviously small. This means that the relatively homogeneous structure and composition can be acquired in higher temperature. The as-cast microstructure is extremely uneven, so pre-treatment process of normalizing or diffusion annealing ought to be carried out before quenching treatment, and quenching temperature should not be too high.

  Info
Periodical
Chapter
Chapter 6: New Materials and Advanced Materials
Edited by
Huixuan Zhang, Ye Han, Fuxiao Chen and Jiuba Wen
Pages
925-929
DOI
10.4028/www.scientific.net/AMM.117-119.925
Citation
F. Z. Ren, Y. L. Mei, F. J. Li, J. W. Cheng, Y. F. Wang, "Microstructure and Properties of 31Mn2SiREB Cast Steel", Applied Mechanics and Materials, Vols. 117-119, pp. 925-929, 2012
Online since
October 2011
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Price
$32.00
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