固溶处理对022Cr22Ni5Mo3N双相不锈钢组织及低温冲击性能的影响

doi:10.13251/j.issn.0254-6051.2024.10.003

摘要/Abstract

摘要： 对锻态022Cr22Ni5Mo3N双相不锈钢进行固溶处理,研究了固溶温度(1000~1100 ℃)和时间(1 h和2 h)对其组织及-46 ℃低温冲击性能的影响。结果表明,随着固溶温度的升高,022Cr22Ni5Mo3N双相不锈钢中奥氏体含量呈下降趋势,奥氏体的相界趋于平滑,铁素体内的针状、岛状奥氏体数量逐渐减少。低温冲击性能随固溶温度的升高呈先上升后下降趋势;经1050 ℃固溶处理的022Cr22Ni5Mo3N双相不锈钢具有较高的低温冲击吸收能量,约为260 J。固溶处理可以改变奥氏体的相形态,调整相含量,固溶温度小于1050 ℃时的锯齿状相界和固溶温度大于1050 ℃时较低的奥氏体相含量均促使双相钢在低温时偏向脆性断裂,是降低低温韧性的主要原因。

关键词: 022Cr22Ni5Mo3N双相不锈钢, 固溶处理, 相形态, 相比例, 低温冲击性能

Abstract: Solution treatment for as-forged 022Cr22Ni5Mo3N duplex stainless steel was carried out, and the effects of solution temperature (1000-1100 ℃) and time (1 h and 2 h) on the microstructure and -46 ℃ low temperature impact properties were studied. The results show that with the increase of solution temperature, the austenite content of the 022Cr22Ni5Mo3N stainless steel decreases, the phase boundary of austenite tends to be smooth and the number of needle-type and island austenite in ferrite decreases gradually. The low temperature impact properties increase first and then decrease with the increase of solution temperature. When the solution temperature is 1050 ℃, the low temperature impact absorbed energy of the 022Cr22Ni5Mo3N stainless steel is higher, which is about 260 J. The solution treatment can change the austenite phase morphology and adjust the phase content. Serrated phase boundaries(below 1050 ℃) and lower austenite phase content(above 1050 ℃) promote the brittle fracture of dual-phase steels at low temperatures, which is the main reason for the reduction of low-temperature toughness.

Key words: 022Cr22Ni5Mo3N duplex stainless steel, solution treatment, phase morphology, phase ratio, low temperature impact properties

中图分类号:

TG142.71

崔力云, 刘庆涛, 罗锐, 钱喜根, 丁恒楠, 孙希, 赵小桃, 刘恒, 程晓农. 固溶处理对022Cr22Ni5Mo3N双相不锈钢组织及低温冲击性能的影响[J]. 金属热处理, 2024, 49(10): 18-24.

Cui Liyun, Liu Qingtao, Luo Rui, Qian Xigen, Ding Hengnan, Sun Xi, Zhao Xiaotao, Liu Heng, Cheng Xiaonong. Effect of solution treatment on microstructure and low temperature impact properties of 022Cr22Ni5Mo3N duplex stainless steel[J]. Heat Treatment of Metals, 2024, 49(10): 18-24.

参考文献

[1]杜伟, 李鹤林. 海洋石油装备材料的应用现状及发展建议(上)[J]. 石油管材与仪器, 2015, 1(5): 1-7.
Du Wei, Li Helin. Application status and development suggestions on offshore oil equipment materials(Part I)[J]. Petroleum Tubular Goodsand Instruments, 2015, 1(5): 1-7.
[2]赵岩, 王旭, 陈达宇, 等. 固溶处理对低镍双相不锈钢耐点蚀及强韧性能的影响[J]. 稀有金属材料与工程, 2023, 52(2): 535-543.
Zhao Yan, Wang Xu, Chen Dayu, et al. Effect of solid solution treatment on pitting corrosion and strength-toughness properties of low-nickel duplex stainless steel[J]. Rare Metal Materials and Engineering, 2023, 52(2): 535-543.
[3]宁鑫, 宋志刚, 丰涵, 等. α/γ相比例对HPD-1双相不锈钢疲劳性能的影响[J]. 钢铁研究学报, 2020, 32(12): 1180-1186.
Ning Xin, Song Zhigang, Feng Han, et al. Effect of α/γ phase ratio on fatigue performance of HPD-1 duplex stainless steel[J]. Journal of Iron and Steel Research, 2020, 32(12): 1180-1186.
[4]宋志刚, 丰涵, 吴晓涵, 等. 中国双相不锈钢的发展及研究进展[J]. 中国冶金, 2022, 32(6): 2-14.
Song Zhigang, Feng Han, Wu Xiaohan, et al. Development and research progress of duplex stainless steel in China[J]. China Metallurgy, 2022, 32(6): 2-14.
[5] Wang Jian, Chen Wanli, Meng Haojie, et al. Influence of sigma phase on corrosion and mechanical properties of 2707 hyper-duplex stainless steel aged for short periods[J]. Journal of Iron and Steel Research International, 2019, 26(5): 452-461.
[6] Gennari Claudio,Pezzato Luca, Piva Enric, et al. Influence of small amount and different morphology of secondary phases on impact toughness of UNS S32205 duplex stainless steel[J]. Materials Science and Engineering A, 2018, 729: 149-156.
[7]王小勇, 黄乐庆, 王海宝, 等. 固溶处理对双相不锈钢组织与性能的影响[J]. 金属热处理, 2018, 43(5): 101-105.
Wang Xiaoyong, Huang Leqing, Wang Haibao, et al. Influence of solution treatment on microstructure and properties of duplex stainless steel[J]. Heat Treatment of Metals, 2018, 43(5): 101-105.
[8]许亮, 李姚君, 刘其源, 等. 固溶温度对S22053双相不锈钢组织与力学性能的影响[J]. 金属热处理, 2018, 43(5): 192-195.
Xu Liang, Li Yaojun, Liu Qiyuan, et al. Effect of solution temperature on microstructure and mechanical properties of S22053 duplex stainless steel[J]. Heat Treatment of Metals, 2018, 43(5): 192-195.
[9]朱泽华. 双相不锈钢ZG0CrXNiXMo2Mn和ZG0Cr26Ni5Mo3CuX的显微组织及性能研究[D]. 广州: 暨南大学, 2018.
Zhu Zehua. Study of microstructure and properties of duplex stainless steel ZG0CrXNiXMo2Mn and ZG0Cr26Ni5Mo3CuX[D]. Guangzhou: Jinan University, 2018.
[10]王源. 双相不锈钢凝固及析出行为研究[D]. 辽宁: 东北大学, 2019.
Wang Yuan. Study on solidification and precipitation behavior of duplex stainless steel[D].Liaoning: Northeastern University, 2019.
[11]钟莉莉, 王勇, 孙殿东, 等. S22053双相不锈钢低温冲击性能不合分析[J]. 鞍钢技术, 2021(3): 26-29.
Zhong Lili, Wang Yong, Sun Diandong, et al. Analysis on causes leading to disqualification of low-temperature impact toughness of S22053 duplex stainless steel[J]. Angang Technology, 2021(3): 26-29.
[12]张钰柱. UNS S32750双相不锈钢鼻尖温度下σ相的析出行为及其对力学性能的影响[J]. 材料热处理学报, 2022, 43(10): 109-117.
Zhang Yuzhu. Precipitation behavior of σ phase at nose temperature of UNS S32750 duplex stainless steel and its effect on mechanical properties[J]. Transactions of Materials and Heat Treatment, 2022, 43(10): 109-117.
[13]逄旭光, 刘润青, 王文涛, 等. 时效温度对S32750超级双相不锈钢组织和抗氢氟酸腐蚀性能的影响[J]. 中国腐蚀与防护学报, 2017, 37(6): 519-525.
Pang Xuguang, Liu Runqing, Wang Wentao, et al. Effect of aging temperature on microstructure and corrosion resistance of S32750 super duplex stainless steel in hydrofluoric acid[J]. Journal of Chinese Society for Corrosion and Protection, 2017, 37(6): 519-525.
[14]张志强, 楚昊然, 张天刚, 等. UNS S32750双相不锈钢焊接热影响区微观组织演变[J]. 材料导报, 2023, 37(21): 189-195.
Zhang Zhiqiang, Chu Haoran, Zhang Tiangang, et al. HAZ microstructure evolution of UNS S32750 duplex stainless steel[J]. Materials Reports, 2023, 37(21): 189-195.
[15]张志强, 荆洪阳, 徐连勇, 等. 铁素体/奥氏体双相不锈钢组织和耐局部腐蚀性能研究现状[J]. 材料保护, 2021, 54(1): 136-146.
Zhang Zhiqiang, Jing Hongyang, Xu Lianyong, et al. Research status on microstructure and localized corrosion resistance of ferrite/austenitic duplex stainless steels[J]. Materials Protection, 2021, 54(1): 136-146.
[16]马云飞, 熊毅, 周甜, 等. 不同变形温度下稀土Ce改性2507超级双相不锈钢的微观组织演变[J]. 材料热处理学报, 2020, 41(7): 64-69.
Ma Yunfei, Xiong Yi, Zhou Tian, et al. Microstructure evolution of Ce-modified SAF 2507 super duplex stainless steel at different deformation temperatures[J]. Transactions of Materials and Heat Treatment, 2020, 41(7): 64-69.
[17]刘春媛. 固溶处理对2205双相不锈钢管材膨胀性能影响的研究[D]. 天津: 河北工业大学, 2022.
Liu Chunyuan. Effect of solution treatment on expansion property of 2205 duplex stainless steel tube[D]. Tianjin: Hebei University of Technology, 2022.
[18]马丽, 要玉宏. 固溶温度对S32760双相不锈钢组织和拉伸性能的影响[J]. 热加工工艺, 2021, 50(16): 112-116.
Ma Li, Yao Yuhong. Effects of solid solution temperature on microstructure and tensile properties of S32760 duplex stainless steel[J]. Hot Working Technology, 2021, 50(16): 112-116.
[19]吴晓涵. S32750双相不锈钢高温转变二次奥氏体的演变及其对性能的影响[D]. 北京: 北京科技大学, 2023.
Wu Xiaohan. Evolution of high-temperature-transformed secondary austenite and its influence on properties of S32750 duplex stainless steel[D]. Beijing: University of Science and Technology Beijing, 2023.
[20]艾建阳, 胡裕龙, 王皓, 等. 双相不锈钢及其焊接接头腐蚀研究进展[J]. 表面技术, 2022, 51(4): 77-91.
Ai Jianyang, Hu Yulong, Wang Hao, et al. Research progress on corrosion of duplex stainless steel and its welded joint[J]. Surface Technology, 2022, 51(4): 77-91.
[21]胡万卿. S32101双相不锈钢热轧表面裂纹形成机理及控制的研究[D]. 鞍山: 辽宁科技大学, 2021.
Hu Wanqing. Study on surface crack formation mechanism and control of S32101 duplex stainless steel in hot rolling[D]. Anshan: University of Science and Technology Liaoning, 2021.
[22]梁祥祥, 李国平, 韩培德. 时效和固溶处理工艺对经济型S32101双相不锈钢低温韧性的影响[J]. 上海金属, 2022, 44(3): 28-34, 43.
Liang Xiangxiang, Li Guoping, Han Peide. Effect of aging and solution treatment processes on low-temperature toughness of cost-saving S32101 duplex stainless steel[J]. Shanghai Metals, 2022, 44(3): 28-34, 43.
[23]高晓丹, 李晶琨, 任学平, 等. 固溶温度对2205双相不锈钢组织和硬度的影响[J]. 金属热处理, 2021, 46(1): 7-10.
Gao Xiaodan, Li Jingkun, Ren Xueping, et al. Effect of solid solution temperature on microstructure and microhardness of 2205 duplex stainless steel[J]. Heat Treatment of Metals, 2021, 46(1): 7-10.
[24]李国平, 李建春, 张寿禄, 等. 热处理对S32003经济型双相不锈钢组织和性能的影响[J]. 钢铁, 2013, 48(5): 72-76.
Li Guoping, Li Jianchun, Zhang Shoulu, et al. Effect of hot treatment on microstructure and properties of S32003 lean duplex stainless steel[J]. Iron and Steel, 2013, 48(5): 72-76.
[25]梁祥祥, 韩培德, 李国平. 热轧工艺对S32101经济型双相不锈钢低温冲击韧性的影响[J]. 热加工工艺, 2024, 53(17): 118-121.
Liang Xiangxiang, Han Peide, Li Guoping. Effect of hot rolling process on low temperature impact toughness of S32101 lean duplex stainless steel[J]. Hot Working Technology, 2024, 53(17): 118-121.
[26]夏磊. 超级双相不锈钢00Cr25Ni7Mo4N组织及冲击韧性研究[D]. 昆明: 云南大学, 2017.
Xia Lei. Study on microstructure and impact toughness of super duplex stainless steel 00Cr25Ni7Mo4N[D].Kunming: Yunnan University, 2017.