摘要
通过对汽车半轴用微合金非调质钢组织结构的观察,并结合力学性能及疲劳性能的分析,研究了该微合金非调质钢的强韧化机理。研究结果表明,汽车半轴用微合金非调质钢空冷态和感应淬火后的组织形态和强韧化机理有所不同,前者的强化主要为位错亚结构强化和弥散强化,具有良好的强度和塑性,但冲击韧度略低;后者主要为相变强化,具有更高的强度和塑韧性。
Based on the structure observation of microalloy and non-hardening steel and the analysis of mechanics and fatigue performance,the toughening mechanism of microalloy and non-hardening steel was studied.The results show that the texture shape and toughening mechanism are different after air cold conditions and induction hardening,the former is for structure and dispersion strengthening,and has good strength and pla.sticity,but the toughness is low;the latter is for phase change strengthening, and has bigger strength and plasticity.
出处
《汽车技术》
北大核心
2007年第11期56-59,共4页
Automobile Technology
关键词
半轴
微合金非调质钢
力学性能
强韧化机理
Haft axle,Microalloy and non-hardening steel,Mechanics performance,Toughening mechanism
