摘要
研究了热处理工艺对超高锰钢ZGMn18Cr2MoRE组织和力学性能的影响。试验结果表明,热处理工艺对超高锰钢组织和性能有显著影响,沉淀(弥散)强化使奥氏体晶内析出了弥散颗粒状M7C3型碳化物,强化了基体,使钢的力学性能得到提高。其中,经1100℃水韧处理后再经250℃×4h回火,ZGMn18Cr2MoRE钢的奥氏体晶粒细小,晶内颗粒状碳化物均匀、弥散分布,σb=994.51Mpa,sσ=430.98Mpa,αk=260J.cm-2,HB=227,δ=55.03%。与水韧处理后不回火相比,σb、sσ、αk、δ、HB分别提高了18.2%、7%、22%、30.3%、9.7%。
The effect of heat treatment process on the microstructure and mechanical properties of super-high manganese steel ZGMn18Cr2MoRE is studied.Experiment results show that this effect is quite obvious.After precipitation(dispersion) strengthening treatment,the carbide particles M7C3 are distributing in austenitic grains,which intensify the austenitic matrix and enhance the mechanical properties of the steel.After being treated by water toughening at 1100℃ and tempering at 250℃ for 4 hours,the microstructure of the ZGMn18Cr2MoRE steel is fine,with carbide particles evenly distributed in austenitic matrix,and its mechanical properties is the best in the series heat treatment process:σ_b=994.51MPa,σ_s=430.98MPa,α_k=260J·cm^-2,HB=227,δ=55.03%.Compared with non-tempered,the σ_b,σ_s,α_k,δ and HB are increased by 18.2%,7%,22%,30.3%,and 9.7% respectively.
出处
《河南科技大学学报（自然科学版）》
CAS
2006年第3期1-4,共4页
Journal of Henan University of Science And Technology:Natural Science
基金
河南省杰出人才创新基金项目(0621000600)
关键词
超高锰钢
热处理
组织
力学性能
Super-high manganese steel
Heat treatment process
Microstructure
Mechanical properties
