摘要
研究了影响Z向钢厚度方向性能的主要因素。利用扫描电镜对试样的金相组织和断口形貌进行分析,结果发现钢的Z向性能不合格主要由是脆硬相和夹杂物形成的裂纹源造成。通过提高钢水纯净度、控制夹杂物形态、优化加热和控轧控冷工艺,可提高钢的Z向性能。
It is researched the main factors to affect the thickness directional properties of Z - direction steel. With scanning electron microscope the metallographic structure and fracture morphology of sample are analyzed. It is found from the analysis that Z - direction property of steel being not qualified is caused mainly by crack sources formed by brittle hardness phase and inclusion. The Z - direction properties of steel can be im- proved with improving purity degree of molten steel, controlling inclusion morphology, optimizing heating, controlled rolling and controlled cooling processes.
出处
《河北冶金》
2012年第11期74-77,53,共5页
Hebei Metallurgy
关键词
Z向钢
夹杂物
脆硬相
裂纹
分析
Z - direction steel
inclusion
brittle hardness phase
crack
analysis
