固溶处理对06Cr19Ni9NbN钢微观组织与力学性能的影响

doi:10.13251/j.issn.0254-6051.2020.11.042

金属热处理 ›› 2020, Vol. 45 ›› Issue (11): 218-221.DOI: 10.13251/j.issn.0254-6051.2020.11.042

固溶处理对06Cr19Ni9NbN钢微观组织与力学性能的影响

朱雪彤, 党淑娥, 焦永星, 霍雄勃

太原科技大学材料科学与工程学院, 山西太原 030024

收稿日期:2020-04-20 出版日期:2020-11-25 发布日期:2020-12-29
通讯作者: 党淑娥,教授,博士,E-mail: shuedang@163.com
作者简介:朱雪彤(1994—),女,硕士研究生,主要研究方向为金属材料与热处理,E-mail: zhuxuetong1216@163.com。
基金资助:
山西省重点研发计划重点项目(201703D111005);太原科技大学博士后启动基金(20192061)

Effect of solution treatment on microstructure and mechanical properties of 06Cr19Ni9NbN steel

Zhu Xuetong, Dang Shu'e, Jiao Yongxing, Huo Xiongbo

College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan Shanxi 030024, China

Received:2020-04-20 Online:2020-11-25 Published:2020-12-29

摘要/Abstract

摘要： 在变形温度1100 ℃,变形量30%的条件下进行平面应变压缩,并对压缩后的06Cr19Ni9NbN钢进行微观组织观察及力学性能测试。将压缩后试样进行1050 ℃保温2 h 的固溶处理,观察固溶处理后试样微观组织及力学性能的变化。结果表明:热压缩过程中,变形量越大的区域发生动态再结晶的程度越高,晶粒尺寸越小,组织越均匀。固溶处理后,细小的再结晶晶粒逐渐长大,组织变得较为均匀,晶粒尺寸增加到100 μm后逐渐趋于稳定。固溶处理对该钢的伸长率影响不大,但固溶处理后其屈服强度降低约20 MPa。

关键词: 06Cr19Ni9NbN钢, 固溶处理, 微观组织, 力学性能

Abstract: Plane strain compression with the deformation of 30% of the 06Cr19Ni9NbN steel was carried out at the deformation temperature of 1100 ℃, the microstructure was observed, and the mechanical properties were tested. After compression, the solution treatment of the specimen was conducted at 1050 ℃ for 2 h. Meanwhile, the change of microstructure and mechanical properties was investigated. The results show that the greater the deformation of the area in the specimen is, the higher the degree of dynamic recrystallization is, the smaller the grain size is and the more uniform the microstructure is. After solution treatment, the small recrystallized grains gradually grow up and the microstructure becomes more uniform, and the grain size tends to be gradually stable after increasing to 100 μm. The solution treatment has little effect on the elongation of the steel, but the yield strength of the steel after solution treatment decreases about 20 MPa.

Key words: 06Cr19Ni9NbN steel, solution treatment, microstructure, mechanical properties

中图分类号:

朱雪彤, 党淑娥, 焦永星, 霍雄勃. 固溶处理对06Cr19Ni9NbN钢微观组织与力学性能的影响[J]. 金属热处理, 2020, 45(11): 218-221.

Zhu Xuetong, Dang Shu'e, Jiao Yongxing, Huo Xiongbo. Effect of solution treatment on microstructure and mechanical properties of 06Cr19Ni9NbN steel[J]. Heat Treatment of Metals, 2020, 45(11): 218-221.

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固溶处理对06Cr19Ni9NbN钢微观组织与力学性能的影响

Effect of solution treatment on microstructure and mechanical properties of 06Cr19Ni9NbN steel

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