轧制变形量对15Cr氧化物弥散强化钢显微组织与力学性能的影响
Effect of Rolling Deformation Amount on Microstructure and Mechanical Properties of 15Cr Oxide Dispersion Strengthened Steel
谢锐 1吕铮 2王晴 1陈剑波 2刘春明2
作者信息
- 1. 沈阳建筑大学材料科学与工程学院,沈阳 110168
- 2. 东北大学材料科学与工程学院,材料各向异性与织构教育部重点实验室,沈阳 110819
- 折叠
摘要
采用热等静压工艺制备了 15Cr氧化物弥散强化(15Cr-ODS)钢并对其进行轧制,研究了轧制变形量(0,30％,50％,70％)对试验钢显微组织与力学性能的影响.结果表明:轧制可以提高试验钢的密度,但变形量对密度无明显影响;随轧制变形量增加,试验钢晶粒细化,组织各向异性更加显著,析出相尺寸变大,分布密度降低;轧制后试验钢的显微硬度、室温至600 ℃的抗拉强度和断后伸长率均提高;随轧制变形量增加,显微硬度增加,但抗拉强度无明显变化.
Abstract
15Cr oxide dispersion strengthened(15Cr-ODS)steel was prepared by hot isostatic pressing and then rolled.The effects of rolling deformation amount(0,30％,50％,70％)on the microstructure and mechanical properties of the test steel were studied.The results show that rolling could increase the density of the test steel,but the deformation amount had no obvious effect on the density.With the increase of rolling deformation amount,the grain size of the test steel was refined,the microstructure anisotropy was more significant,the size of the precipitated phase increased,and the distribution density decreased.After rolling,the microhardness,tensile strength from room temperature to 600 ℃,percentage elongation after fracture of the test steel all increased.With the increase of rolling deformation amount,the microhardness increased,and the tensile strength had no obvious change.
关键词
氧化物弥散强化钢/轧制变形量/显微组织/硬度/拉伸性能Key words
oxide dispersion strengthened steel/rolling deformation amount/microstructure/hardness/tensile property引用本文复制引用
基金项目
辽宁省教育厅基本科研项目(青年项目)(LJKQZ2021061)
出版年
2024
NETL
NSTL
万方数据