高温激光共聚焦显微镜在钢铁材料中研究进展

介绍了高温激光共聚焦显微镜的工作原理及主要功能，详细汇总了近年来高温激光共聚焦显微镜在钢铁冶金领域、材料研发领域、焊接领域的研究进展，包括钢液在高温熔融过程中夹杂物上浮、聚集、长大行为以及夹杂物聚集的动力学机制研究、相变行为等。利用高温激光共聚焦显微镜研究钢中典型珠光体、贝氏体和马氏体相变基本特征，探讨了不同尺寸粒子在高温对晶界的钉扎、溶解等行为，分析了当前应用过程中存在的主要问题，提出了相应的改进建议，并为后期高温激光共聚焦在钢铁材料领域的应用研究提供参考。

A review on high temperature confocal scanning laser microscope applied in steel materials

The working principle and main function of high temperature confocal scanning lase rmicroscope were introduced. Moreover，the investigation progresses were concluded in detail in the steel metallurgy field，material investigation field and welding field，which included the inclusion floating behavior，gathering behavior，growing and gathering mechanics，transformation behaviorand soon. This paper mainly focused on investigation of traditional transformation characters in steels by using of high temperature confocal microscope，such as pearlite transformation，bainite transformation and martensite transformation. The particles pinning grain boundary behavior and particles solving behavior were discussed. The main existing problems were analyzed and the suggestions were offered. Finally，the future application study of the high temperature confocal scanning laser microscope in the material research field was also put forward.