Modeling the mechanical properties of quenched and tempered martensitic steels

Thursday, April 21, 2016: 10:50 AM
Ballroom C (Hyatt Regency Savannah)
Ms. Xiaoqing Cai , Worcester Polytechnic Institute, Worcester, MA
Mr. Yuan Lu , Worcester Polytechnic Institute, Worcester, MA
Prof. Richard D Sisson , Worcester Polytechnic Institute, Worcester, MA

Modeling the mechanical properties of quenched and tempered martensitic steels

This study focuses on a physical model to predict the mechanical properties more accurately during the tempering process. It is proposed to determine the mechanical properties in quenched and tempered martensitic steels. The model determines the hardness of the as-quenched martensite as a function of carbon concentration. The effects of tempering are determined by the reduction of carbon with martensite as carbides nucleation and growth. The effects of these carbides are calculated using a dispersion hardening model combined the stressing mechanism of tempering martensite and carbides. The modeling results will be compared with the experimental results in this paper.

See more of: Advanced Thermal Processing IV
See more of: Technical Program