车轮热处理过程中的变形分析  

Deformation Analysis of Railway Wheel in Heat Treatment

作　　者：沈晓辉[1] 闫军[1] 安涛[2] 肖锋[2] 许章泽[2] 

机构地区：[1]安徽工业大学材料科学与工程学院,安徽马鞍山243002 [2]马鞍山钢铁股份有限公司车轮公司,安徽马鞍山243010

出　　处：《中国冶金》2007年第7期19-22,共4页China Metallurgy

基　　金：安徽省重点科研计划项目(07021007)

摘　　要：在考虑了温度、相变及应力的耦合作用的基础上,运用有限元法分析了车轮热处理过程的变形。车轮热处理变形主要发生在淬火阶段,且集中在辐板两端的圆弧处。辐板的变形导致轮毂沉降,并在淬火结束时达到峰值,在随后的回火和冷却过程中沉降减小,热处理结束后HDSA840车轮沉降达1.3 mm。Deformation in railway wheel for heat treatment was analyzed with finite element method, in which the coupling of temperature, phase transformation and stress was considered. Deformation is take place mainly in quenching and the plastic strain concentrate on the arc segments in two ends of the plate. The deformation of plate results in the sinking of hub of the wheel. The sinkage reaches to maximum when quenching finish, and reduces in the following tempering and cooling process. The ultimate sinkage is 1.3 mm when heat treatments finish for HD- SA840 railway wheel.

关 键 词：车轮 热处理 变形 有限元 

分 类 号：TG162.8[金属学及工艺—热处理]