An investigation was made on the effect of rewelding on mechanical properties of Ultra-low carbon austenitic stainless steel based on mechanical properties test and microstructure examination.

通过接1～5次的超氏体不锈钢力学性能的试验及金相组织的分析,研究了接超氏体不锈钢力学性能的影响。

In this paper,the mechanism of workpiece burn during grinding of casehardened steel and titanium alloys was studied by the use of SEM,EPMA,XPS and the metallograph analysis.

本文应用SEM,EPMA、XPS及金相显微分析等技术研究了表面硬化钢和钛合金的烧伤机理。

By means of analysis, hardness test, abrasion test, this paper studies the effect of boron-sulphurizing on microstructure and properties of boronized layer.

通过金相分析、硬度测试、磨损测定，研究了硼硫共渗渗硼层组织和性能的影响。

The strain of the proeutectoid ferrite in hypoeutectoid steel drawing was measured and analyzed by quantitative metallography.

采用定量金相法分析计算了亚共析钢拉拔变形中先共析铁素体应变量。