利用高温应力法研究Ti含量和冷却速度对中碳微合金化钢沉淀强化效应的影响  

INFLUENCE OF Ti CONTENT AND COOLING RATE ON PRECIPITATION STRENGTHENING EFFECT IN MEDIUM Mn-V MICROALLOYED STEELS BY A HIGH TEMPERATURE STRESS METHOD

作　　者：苏辉[1] 阎振棨 

机构地区：[1]东北工学院

出　　处：《钢铁研究学报》1991年第1期41-45,共5页Journal of Iron and Steel Research

摘　　要：本文提出一种高温应力法测定微合金化钢中沉淀强化效应,并研究钛含量和冷却速度对中碳微合金化钢沉淀强化效应的影响。实验结果表明,高温应力法可以定性地测出单独或复合微合金化钢的沉淀强化效应,每种钢都有其最佳冷却速度,在中碳Mn-V微合金化钢中加入0.02％Ti将降低沉淀强化效应,加入0.11％Ti将明显提高沉淀强化效应,较高的氮含量(0.015％)将提高沉淀强化效应。The present paper advances a high temperature stress method to determine the precipitation strengthening effect in microalloyed steels, and investigates the influence of Ti content and cooling rate on the precipitation strengthening effect in medium carbon Mn-V microalloyed steels. The experimental results show that the high temperature stress method can be to used determine the precipitation strengthening effect in single or compound microalloyed steels qualitatively. Every steel has its optimal cooling rate. The addition of 0.02% Ti to medium carbon Mn-V microalloyed steels reduces the precipitation strengthening effect obviously; however, the addition of 0.11% Ti and the higher nitrogen content enhance it obviously.

关 键 词：高温应力法 微合金钢 沉淀强化效应 

分 类 号：TG142.41[一般工业技术—材料科学与工程]