热处理对多元微量低铬白口铸铁机械性能与显微组织的影响  

INFLUENCE OF HEAT TREATMENT ON MECHANICAL PROPERTIES AND MICROSTRUCTURES OF TING MULTIELEMENT A LOW CHROMIUM WHITE CAST IRON

作　　者：孟繁琴[1] 

机构地区：[1]佳木斯大学工学院,佳木斯154007

出　　处：《佳木斯工学院学报》1998年第2期168-171,共4页

摘　　要：研究了淬火温度、冷却介质、回火温度对多元微量低铬白口铁机械性能和显微组织的影响．经过热处理后的碳化物呈断网和细粒状分布，力学性能HRC为54～65，αk为5．6～7．4J／cm2．结果表明，硬度值、冲击值均比铸态分别提高了12～20％、56～80％，强化效果显著．This paper studies the influence of quenching temperature,cooling medi-um and tempering temperature on the mechanical properties and microstrictures of ting mul-tielement a low chromium white cast iron. The results show that carbides are fine particleand in the shape of net non-continuously,and the hardness (HRC 54~65) and ductity (αk5. 6~7. 4J/cm2)are 12~20% and 56~80% higher than one of cast iron. The intensficia-tion of carbides is very strong.

关 键 词：白口铁 热处理 显微组织 机械性能 微量元素 

分 类 号：TG164.1[金属学及工艺—热处理]