锑对灰铸铁断面敏感性的影响  

Effect of Antimony on Structural Sensitivity or Different Cross Sections of Gray Cast Iron

作　　者：朱玉龙[1] 沈定钊[1] 

机构地区：[1]北京科技大学铸造研究所,北京100083

出　　处：《热加工工艺》1999年第1期25-26,41,共3页Hot Working Technology

摘　　要：研究表明，在灰铸铁中加入适量的锑，可使冷却速度不同的厚薄断面都得到９５％以上的珠光体基体，且在薄断面处不出现白口，从而大大改善灰铸铁的断面敏感性。With the addition of suitable content of antimony,we can get such matrix structure that contains more than 95% pearlite in both thickness and thinness cross sections which has different cooling rate and there is on free cementite present in the thinness cross section,that improves the structural sensitivity of different cross sections of gray cast iron obviously.

关 键 词：锑 断面敏感性 灰口铁 珠光体 白口 

分 类 号：TG143.2[一般工业技术—材料科学与工程]