Paper Title:
Morphology, Nature and Formation Mechanism of Packet Plate Martensite in Medium and High Carbon Steels
  Abstract

The microstructures of 11 kinds of commercial steels quenched from high temperature were deeply studied by optical microscope and canning election microscope. It was proved that packet martensite in medium and high carbon steels is not lath martensite, but rather packet plate martensite. Through the analysis of crystallography,it was found that four change rules of crystal orientation may arise during the process of martensite transformation. Two inner interfaces spontaneously formed were only discovered in martensite transformation process: small-angel boundary (misorientation angle is 0 ~ 10º) and twin boundary (misorientation angle is 70º32’). The former mainly appeared in low carbon martensite, and the latter principally formed in medium and high carbon martensite. The twin boundary packet mechanism in medium and high carbon steels has made in detail in this paper.

  Info
Periodical
Chapter
Chapter 1: Materials Science and Engineering
Edited by
Dongye Sun, Wen-Pei Sung and Ran Chen
Pages
231-238
DOI
10.4028/www.scientific.net/AMM.121-126.231
Citation
Y. X. Ma, Y. J. Liu, L. Wang, D. C. Zeng, Y. H. Tan, "Morphology, Nature and Formation Mechanism of Packet Plate Martensite in Medium and High Carbon Steels", Applied Mechanics and Materials, Vols. 121-126, pp. 231-238, 2012
Online since
October 2011
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$32.00
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