12CrNi_3钢中马氏体与下贝体组织性能的对比研究  

COMPARATIVE STUDY OF MICROSTRUCTURE AND PROPERETIES OF MARTENSITE AND LOWER-BAINITE IN 12CrNi_3 STEEL

作　　者：张妍[1] 贾志成 

机构地区：[1]内蒙古工业大学材料工程学院,内蒙古呼和浩特010062 [2]乌盟产品质量计量检验所,集宁012000

出　　处：《内蒙古工业大学学报（自然科学版）》2002年第4期255-258,共4页Journal of Inner Mongolia University of Technology：Natural Science Edition

摘　　要：本文通过对 1 2 Cr Ni3钢经不同预先热处理和最终热处理后的马氏体和下贝氏体组织性能进行对比研究 ,结果表明 :正火处理比退火处理后的组织致密 ,对淬火组织和性能有利 .采用等温淬火得到下贝体组织 ,除强度和硬度外 ,具有比马氏体组织更好的其它综合性能 ,有望在一定范围内得到应用 .A comparison of microstructure and properties has been made between martensite and lower bainite in 12CrNi 3 steel,both pre heat treated and finally heat treated.Results show that the air quenched structure is more compact and finer than the annealed structure,which means that the quenched structure holds and advantage over the other structure in aspects of microstructure and properties.Properties of isothermal quenched lower bainite structure are ,comprehensively,better than those of martensite structure except the strength and hardness.Hopefully,it will find application in certain manufacturing areas.

关 键 词：12CrNi3 马氏体 下贝体 组织性能 

分 类 号：TG142.1[一般工业技术—材料科学与工程]