固溶温度及冷却方式对00Cr40Ni55Al3Ti合金组织性能的影响

doi:10.13251/j.issn.0254-6051.2024.02.021

金属热处理 ›› 2024, Vol. 49 ›› Issue (2): 142-148.DOI: 10.13251/j.issn.0254-6051.2024.02.021

固溶温度及冷却方式对00Cr40Ni55Al3Ti合金组织性能的影响

崔毅^1,2, 曹文全¹, 王艳³, 崔继红⁴, 马超⁵, 田仲杰², 张雲飞²

1.钢铁研究总院有限公司特殊钢研究院, 北京 100081;
2.河北河钢材料技术研究院有限公司, 河北石家庄 052165;
3.河钢股份有限公司, 河北石家庄 050023;
4.中国机械总院集团北京机电研究所有限公司, 北京 100083;
5.河北张宣高科科技有限公司, 河北石家庄 075100

收稿日期:2023-09-12 修回日期:2023-12-24 出版日期:2024-03-27 发布日期:2024-03-27
通讯作者: 张雲飞,教授级高工,E-mail:zhangyunfei@hbisco.com
作者简介:崔毅(1988—),男,高级工程师,主要研究方向为特种轴承材料组织调控技术,E-mail:cuiyi@hbisco.com。
基金资助:
河北省重大科技成果转化专项(22281007Z);河北省战略性技术专项(23311003L)

Influence of solution temperature and cooling method on microstructure and properties of 00Cr40Ni55Al3Ti alloy

Cui Yi^1,2, Cao Wenquan¹, Wang Yan³, Cui Jihong⁴, Ma Chao⁵, Tian Zhongjie², Zhang Yunfei²

1. Institute for Special Steels, Central Iron and Steel Research Institute Co., Ltd., Beijing 100081, China;
2. Hebei HBIS Material Technology Research Institute Co., Ltd., Shijiazhuang Hebei 052165, China;
3. HBIS Company Limited, Shijiazhuang Hebei 050023, China;
4. Beijing Research Institute of Mechanical & Electrical Technology Co., Ltd., CAM, Beijing 100083, China;
5. HBIS Group Zhangxuan Technology, Zhangjiakou Hebei 075100, China

Received:2023-09-12 Revised:2023-12-24 Online:2024-03-27 Published:2024-03-27

摘要/Abstract

摘要： 以热轧态00Cr40Ni55Al3Ti合金为研究对象,采取1150~1250 ℃固溶+水冷/空冷的试验方案,探究了固溶温度及冷却方式对显微组织与力学性能的影响规律。研究结果表明,在1150~1250 ℃范围内,合金晶粒及α-Cr相的尺寸随固溶温度升高而增加,超过1150 ℃后晶粒急剧长大,超过1200 ℃固溶并空冷后,α-Cr相在晶界片层状析出。合金的显微硬度随固溶温度的升高而下降,冲击吸收能量在1200 ℃达到峰值;水冷条件下α-Cr相和纳米级γ′相析出受到抑制,与空冷条件相比,硬度、冲击吸收能量分别降低和升高;拉伸性能受冷却方式的影响显著,空冷条件抗拉强度相对较高,1250 ℃固溶后空冷引起混晶及晶界粗大片层组织出现,导致伸长率与水冷相比下降了26.5%。

关键词: 无磁轴承合金, 固溶处理, 冷却方式, 显微组织, 力学性能

Abstract: Hot rolled 00Cr40Ni55Al3Ti alloy was studied and 1150-1250 ℃ solution treatment+air cooling/water quenching process was conducted on the tested alloy in order to find out the influence of solution temperature and cooling method on microstructure and mechanical properties of the 00Cr40Ni55Al3Ti alloy. The results show that the size of grain and α-Cr phase increases with the increase of solution temperature in the range of 1150-1250 ℃, and the grain size grows rapidly when the solution temperature is over 1150 ℃. When the alloy is solution treated over 1200 ℃ followed by air cooling, α-Cr phase precipitates in a layered pattern at the grain boundary. The microhardness of the alloy decreases with the solution temperature increasing, and the impact absorbed energy peaks at 1200 ℃. When the water cooling is conducted, there is an inhibition in the precipitation of α-Cr phase and nano-sized γ′ particles, consequently, the hardness and impact absorbed energy decreases and increases, respectively, compared with air cooling. Tensile properties are strongly influenced by the cooling method, the tensile strength is relatively higher under air cooling. And there is a 26.5% decrease in the elongation when solution treated at 1250 ℃ followed by air cooling, due to the mixed grain and coarse layered microstructure at grain boundary.

Key words: non-magnetic bearing alloy, solution treatment, cooling method, microstructure, mechanical properties

中图分类号:

TG142.1

崔毅, 曹文全, 王艳, 崔继红, 马超, 田仲杰, 张雲飞. 固溶温度及冷却方式对00Cr40Ni55Al3Ti合金组织性能的影响[J]. 金属热处理, 2024, 49(2): 142-148.

Cui Yi, Cao Wenquan, Wang Yan, Cui Jihong, Ma Chao, Tian Zhongjie, Zhang Yunfei. Influence of solution temperature and cooling method on microstructure and properties of 00Cr40Ni55Al3Ti alloy[J]. Heat Treatment of Metals, 2024, 49(2): 142-148.

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固溶温度及冷却方式对00Cr40Ni55Al3Ti合金组织性能的影响

Influence of solution temperature and cooling method on microstructure and properties of 00Cr40Ni55Al3Ti alloy

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