14Cr-0.5Mo不锈钢脆性原因分析  

Reason Analysis on Brittleness of 14Cr-0.5Mo Stainless Steel

作　　者：刘业超[1] 陈炜[1] 梁盈[1] 牛丹[1] 翁吉铭 于广义[1] LIU Ye-chao;CHEN Wei;LIANG Ying;NIU Dan;WEN Ji-ming;YU Guang-yi(Shenyang Blower Works Group Corporation,Shenyang Liaoning 110869,China)

机构地区：[1]沈阳鼓风机集团股份有限公司,辽宁沈阳110869

出　　处：《热处理技术与装备》2018年第4期32-34,共3页Heat Treatment Technology and Equipment

摘　　要：本文对低冲击功14Cr-0.5Mo不锈钢进行分析。结果表明,网状碳化物的形成是影响14Cr-0.5Mo不锈钢冲击韧性的主要原因;终锻温度过高和冷却速度过慢是网状碳化物形成的一个重要因素。提出用高温扩散热处理可以改变网状碳化物的分布,并且证明了用这种方法消除网状碳化物是可行的。The 14 Cr-0. 5 Mo stainless steel with low impact energy is analyzed in this paper. The results show that the formation of network carbide is the main reason affecting the impact toughness of 14 Cr-0. 5 Mo stainless steel. Excess final foring temperature and too slow cooling rate during the forging process are important factors for the formation of network carbide. It is suggested that the distribution of network carbide can be changed by heat treatment process with high temperature diffusion,and it is proved that the network carbide eliminated by this process is feasible.

关 键 词：网状碳化物 14Cr-0.5Mo不锈钢 泵轴 锻造 脆性 

分 类 号：TG316.192[金属学及工艺—金属压力加工]