低倍缺陷对38CrSi钢力学性能的影响  

Effect of macroscopical defect on mechanical properties of 38CrSi steel

作　　者：辛士进[1] 董莹[1] 董立松[1] 周喜顺[1] 邸建辉[1] 王东[1] 崔艳芳[1] 李鹏[1] 

机构地区：[1]中国兵器科学研究院宁波分院包头研究所,内蒙古包头014030

出　　处：《金属热处理》2012年第4期122-123,共2页Heat Treatment of Metals

摘　　要：用酸蚀方法研究38CrSi钢的低倍缺陷与力学性能的关系。结果表明,低倍缺陷对钢的强度和塑性影响不大,而它对钢的冲击性能有明显作用,这种作用与钢中非金属夹杂物含量有关,夹杂物含量越高,钢的冲击韧性越低,通过电镜分析认为是α-MnS夹杂物。The relation between macroscopical defect and mechanical properties of 38CrSi steel was studied by aciding pickling.The results show that there is less effect of macroscopical defect on strength and plasticity of steel,reciprocally obvious effect of macroscopical defect on impact toughness,the effect is related to the content of non-metallic inclusion of steel,the higher content of non-metallic inclusion,the lower impact toughness of steel,the inclusion is α-MnS by electron microscopy examination.

关 键 词：低倍缺陷 酸蚀 力学性能 夹杂物 

分 类 号：TG142[一般工业技术—材料科学与工程]