马氏体时效不锈钢的相变与力学性能

来源期刊：中南大学学报(自然科学版)1979年第1期

论文作者：李健纯 高安娟 王占一

文章页码：44 - 52

关键词：马氏体时效不锈钢； 淬火温度； 奥氏体含量； 回火温度； 微观应变； 回火时间； 冲击韧性； 相变； 透射电镜； 不同温度

摘    要：本文分析了两种马氏体时效不锈钢中奥氏体含量与回火温度、回火时间及淬火温度的关系。实验证明相组织明显地与淬火温度有关。用X光衍射研究了淬火温度、时效温度及时间对微观应变△a/a的影响,透射电镜照片表明回火奥氏体沿马氏体边界析出,提高了冲击韧性ak值。

Abstract: The paper is concerned with two kinds of maraging stainless steel. The relationships between austenite volume fraction and tempering temperature, tempering time as well as quenching temperature are determined. The phase structure markedly depends on quenching temperature. The effects of quenching temper ature, aging temperature and time on microstrain △a/a have been investigated by means of X-ray diffraction. As shown in the electron transmission micro graph the reverted austenite disperses along ihebound aries of martensite, thus improving the impact toughness ak.