北京科技大学学报2011，Vol.33Issue(6)：715-720,6.
回火温度对Q960钢析出物组织特征的影响
Effect of tempering temperature on the structural properties of precipitates in Q960 steel
于浩 1张道达 2肖荣亭 1周平 3李灿明3
作者信息
- 1. 北京科技大学材料科学与工程学院,北京100083
- 2. 通裕重工股份有限公司,德州251200
- 3. 莱芜钢铁集团有限公司,莱芜271104
- 折叠
摘要
Abstract
The morphology, distribution and components of precipitates in Q960 steel under the conditions of the same composition, rolling technology and quenching process but different tempering temperatures were systematically investigated by using transmission electron microscopy ( TEM), energy dispersive X-ray spectrometry (EDX) and a multi-function internal friction device. A law was proposed for describing the effect of tempering temperature on the structure characteristics of the precipitates. It was shown that the decrease of carbon solution content in martensite was greater when the tempering temperature was less than 400 ℃ , but it was very slow when the tempering temperature was higher than 400 ℃. In addition, a large number of small parallel θ-carbides dissolved and were finally replaced by Cr carbides which precipitated along martensite lath boundaries. With the tempering temperature increasing, Nb, V and Ti composite carbon and nitrogen compounds grew up and their shape evolved from a square to an oval.关键词
高强钢/回火/析出物/组织特征/内耗/马氏体/碳化物Key words
high strength steel/ tempering/ precipitates/ structural properties/ internal friction/ martensite/ carbides分类
矿业与冶金引用本文复制引用
于浩,张道达,肖荣亭,周平,李灿明..回火温度对Q960钢析出物组织特征的影响[J].北京科技大学学报,2011,33(6):715-720,6.
