• CN:11-2187/TH
  • ISSN:0577-6686

›› 1990, Vol. 26 ›› Issue (4): 42-44.

• 论文 • 上一篇    下一篇

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对碳钢相变超塑性变形的探讨

王利杰;饶孝权   

  1. 天津大学
  • 发布日期:1990-07-01

A RESEARCH ON TRANSFORMATIONAL SUPER PLASTICITY OF CARBON STEELS

Wang Lijie;Rao Xiaoquan   

  1. Tianjin University
  • Published:1990-07-01

摘要: 本文探讨了碳钢相变超塑性变形的基本规律。发现低碳钢的相变超塑性变形量随拉应力增大时,有异常峰存在;并认为基体原子的自扩散是相变超塑性变形的重要机制之一。

关键词: 超塑性, 化学势, 扩散, 相变

Abstract: The characteristic and regularity of γ≒α+ Fe3C transformational superplasticity of carbon steels have been studied. An interesting phenomenon was found that an unusual peak appeared in the elongation curve of lower carbon steel during the tension stress increased. The author deduced that the directional diffusion of matrix atoms was maior mechanism of the phenomenon.

Key words: 超塑性, 化学势, 扩散, 相变