铸造技术2011，Vol.32Issue(4)：465-470,6.
HCM2S(T23)钢显微组织结构特征及强化机理分析
Microstructure and Strengthening Mechanisms of HCM2S(T23) Steel
于在松 1王弘喆 1聂铭 2周荣灿 1唐丽英 1张红军1
作者信息
- 1. 西安热工研究院有限公司,陕西西安710032
- 2. 广东电网公司电力科学研究院,广东广州510600
- 折叠
摘要
Abstract
Microstructure and strengthening mechanisms of T23 steel used for superheater tube has been investigated by means of carbon replica method, transmission electron microscopy, SEM and EDS. The results showed that the microstructure of T23 by normalizing processing is granular bainite. For granular bainite steel, not only grain boundary and substructure strengthening, solution strengthen, but also dispersion strengthening of M/A island are effective. The microstructure of T23 under tempered after normalizing conditions is tempered granular bainite. For tempered granular bainite steel, The major portion of M/A islands decompose into carbide and ferrite. And a great deal of fine granular deposited MX phase precipitate in the intragranular and intergranular fields of T23 steel. The strengthening mechanism of T23 steel include the solution strengthening, grain boundary and substructure strengthening and the precipitation strengthening plays a significant role in strengthening mechanism.关键词
HCM2S(T23)钢/粒状贝氏体/M/A岛/强化机理Key words
HCM2S(T23)steel/ Granular bainite/ M/A island/ Strengthening mechanism分类
矿业与冶金引用本文复制引用
于在松,王弘喆,聂铭,周荣灿,唐丽英,张红军..HCM2S(T23)钢显微组织结构特征及强化机理分析[J].铸造技术,2011,32(4):465-470,6.
