Cr元素掺杂对Fe-C-Mn-Al系轻质钢的影响研究进展  

Research Progress on Effect of Cr Doping on Fe-C-Mn-Al Light Steel

作　　者：葛美伶 张欢 司天宇 程洪 何忠平 GE Meiling;ZHANG Huan;SI Tianyu;CHENG Hong;HE Zhongping(School of Mechanical Engineering,Chengdu University,Chengdu 610106,China)

机构地区：[1]成都大学机械工程学院,四川成都610106

出　　处：《成都大学学报（自然科学版）》2024年第1期69-75,共7页Journal of Chengdu University（Natural Science Edition）

摘　　要：Fe-C-Mn-Al系轻质钢具有良好的耐腐蚀性、低密度和优异的综合力学性能,在钢中添加合金元素会显著影响相变热力学与动力学,进一步影响并决定组织形貌的演化过程.添加Cr元素会对Fe-C-Mn-Al系轻质钢微观组织产生显著作用,重点对添加不同含量的Cr元素后,对κ-碳化物、β-Mn和DO_(3)等相生长、晶粒尺寸变化及晶界角度的改变,促进Al_(2)O_(3)及含Cr氧化物的生成,以及提高Fe-C-Mn-Al系轻质钢抗拉强度、耐腐蚀性和抗氧化性等性能的情况进行分析.并归纳总结了Cr元素的加入及不同含量的Cr元素给Fe-C-Mn-Al系轻质钢带来的优势,同时对当前的发展趋势进行展望.Fe-C-Mn-Al light steel has good corrosion resistance,low density and excellent comprehensive mechanical properties.Adding alloying elements to the steel will significantly affect the thermodynamics and kinetics of phase transformation,further affecting and determining the evolution process of the microstructure morphology.The addition of Cr has a significant effect on the microstructure.This paper analyzes how the addition of Cr of different content influencesκ-Carbides、β-Mn,DO_(3) and other phases growth,the change of grain size and the change of grain boundary angle,and promotes the formation of Al_(2)O_(3) and Cr containing oxides to improve the tensile strength,corrosion resistance,oxidation resistance and other properties of Fe-C-Mn-Al light steel.This paper also analyzes the advantages of the addition of Cr and different content of Cr in Fe-C-Mn-Al light steel.And the current development trend is prospected.

关 键 词：Fe-C-Mn-Al系轻质钢 CR元素 微观组织 力学性能 

分 类 号：TG142[一般工业技术—材料科学与工程]