固溶处理对GH99合金组织的影响

doi:10.13251/j.issn.0254-6051.2020.08.034

摘要/Abstract

摘要： 通过电子背散射衍射技术(EBSD)分析了不同固溶温度和时间下GH99合金的晶粒尺寸及晶界特征分布。结果发现:GH99合金的晶粒经固溶处理后逐渐变成等轴状晶粒,晶粒内存有大量孪晶界,且绝大多数为较平直的Σ3晶界;晶粒尺寸随固溶温度升高和时间延长而逐渐增大,其在不同温度和时间下的长大速度不尽相同,而孪晶随晶粒的长大而长大;Σ3晶界比例随固溶温度的升高和时间的延长先增大后减小,而Σ9和Σ27晶界比例则呈现逐渐减小的趋势。

关键词: 固溶处理, GH99合金, 晶粒尺寸, 特殊晶界, 晶界分布

Abstract: Grain size and grain boundary characteristic distribution of the GH99 alloy were analyzed by electron backscattered diffraction (EBSD) at different solution treatment temperatures and time. The results show that the grains of the GH99 alloy gradually become equiaxed after the solution treatment. There are a large number of twin boundaries in the grains, and the most of them are flatter Σ3 grain boundary. The grains grow gradually as the temperature and the time of solution treatment increase, while the grain growth rate is different at different temperatures and time, and the annealing twins grow with the growth of the grains. With the increase of solution treatment temperature and time, the fraction of the Σ3 grain boundary increases firstly and then decreases, while the fraction of Σ9 and Σ27 grain boundaries shows a gradual decreasing trend.

Key words: solution treatment, GH99 alloy, grain size, special boundaries, grain boundary distribution

中图分类号:

TG142

秦升学, 王艳, 张弘斌, 周海萍, 刘杰. 固溶处理对GH99合金组织的影响[J]. 金属热处理, 2020, 45(8): 173-178.

Qin Shengxue, Wang Yan, Zhang Hongbin, Zhou Haiping, Liu Jie. Effect of solution treatment on microstructure of GH99 alloy[J]. Heat Treatment of Metals, 2020, 45(8): 173-178.

参考文献

[1]王福. 新型GH4099板材的制备与性能研究[J]. 特钢技术, 2018, 24(1): 18-21.
Wang Fu. Study on the manufacturing process and properties of a new type GH4099 plate[J]. Special Steel Technology, 2018, 24(1): 18-21.
[2]夏长林, 裴丙红, 何云华. GH4099 合金轧制棒材高温持久性能研究[J]. 钢铁研究学报, 2011, 23(2): 115-118.
Xia Zhanglin, Pei Binhong, He Yunhua. Study on high temperature creep rupture property of GH4099 alloy rolled bar[J]. Journal of Iron and Steel Research, 2011, 23(2): 115-118.
[3]秦升学, 赵蕊蕊, 张弘斌, 等. 时效热处理对GH99中强化相γ'相的影响[J]. 材料热处理学报, 2017, 38(2): 55-60.
Qin Shengxue, Zhao Ruirui, Zhang Hongbin, et al. Influence of long-term thermal exposure on γ'-phase of GH99 alloy[J]. Transactions of Materials and Heat Treatment, 2017, 38(2): 55-60.
[4]魏育环, 杨枬森, 于万众, 等. GH99镍基合金长期时效后的组织和性能变化[J]. 钢铁研究学报, 1988, 1(4): 33-40.
Wei Yuhuan, Yang Nansen, Yu Wanzhong, et al. Variation in microstructure and mechanical properties of GH99 alloy after long-term aging[J]. Journal of Iron and Steel Research, 1988, 1(4): 33-40.
[5]庄栋栋, 王丽欣, 蒋涛, 等. 低碳铝镇静钢冷轧板再结晶过程中显微组织和晶界分布演化[J]. 金属热处理, 2018, 43(2): 57-61.
Zhuang Dongdong, Wang Lixin, Jiang Tao, et al. Microstructural and grain boundary distributed evolution of aluminum killed low-carbon steels during recrystallization[J]. Heat Treatment of Metals, 2018, 43(2): 57-61.
[6]刘峰, 康进科, 马聪, 等. 形变量对GH4169合金微观组织和晶界特征分布的影响[J]. 金属热处理, 2017, 42(2): 11-15.
Liu Feng, Kang Jinke, Ma Cong, et al. Effect of deformation on microstructure and grain boundary character distribution of GH4169 alloy[J]. Heat Treatment of Metals, 2017, 42(2): 11-15.
[7]毛卫民. 金属的再结晶与晶粒长大[M]. 北京: 冶金工业出版社, 1994: 62.
[8]张铭显, 杨滨, 王胜龙, 等. 形变热处理对316L奥氏体不锈钢晶界特征分布的影响[J]. 金属热处理, 2016, 41(4): 55-58.
Zhang Mingxian, Yang Bin, Wang Shenglong, et al. Effect of thermo-mechanical processing on grain boundary character distribution of 316L austenitic stainless steel[J]. Heat Treatment of Metals, 2016, 41(4): 55-58.
[9]陈正宗, 刘正东, 包汉生, 等. 固溶温度对新型耐热合金晶界特性的影响[J]. 金属热处理, 2017, 42(1): 31-34.
Chen Zhengzong, Liu Zhengdong, Bao Hansheng, et al. Effect of solution temperature on grain boundary character in new heat-resistant alloy[J]. Heat Treatment of Metals, 2017, 42(1): 31-34.
[10]丁雨田, 孟斌, 高钰璧, 等. 固溶处理对GH3625合金板材组织及性能的影响[J]. 材料导报, 2018, 32(1): 243-248.
Ding Yutian, Meng Bin, Gao Yubi, et al. Effect of solution treatment on the microstructure and mechanical properties of GH3625 superalloy sheet[J]. Materials Review, 2018, 32(1): 243-248.
[11]Zhang Hongbin, Zhang Kaifeng, Lu Zhen, et al. Hot deformation behavior and processing map of a γ′-hardened nickel-based superalloy[J]. Materials Science and Engineering A, 2014, 604: 1-8.
[12]Zhang Hongbin, Zhang Kaifeng, Jiang Shaosong, et al. Dynamic recrystallization behavior of a γ′-hardened nickel-based superalloy during hot deformation [J]. Journal of Alloys and Compounds, 2015, 623: 374-385.
[13]夏爽, 周邦新, 陈文觉. 形变及热处理对690合金晶界特征分布的影响[J]. 稀有金属材料与工程, 2008, 37(6): 999-1003.
Xia Shuang, Zhou Bangxin, Chen Wenjue. Effect of deformation and heat treatment on the distribution of grain boundary characteristics of alloy 690[J]. Rare Metal Materials and Engineering, 2008, 37(6): 999-1003.
[14]Li Defu, Guo Qingmiao, Guo Shengli, et al. The microstructure evolution and nucleation mechanisms of dynamic recrystallization in hot-deformed Inconel 625 superalloy[J]. Materials & Design, 2011, 32(2): 696-705.
[15]李钧, 苏诚, 张磊, 等. Incoloy800合金晶界工程工艺优化研究[J]. 上海金属, 2013, 35(1): 16-20.
Li Jun, Su Cheng, Zhang Lei, et al. Optimization of grain boundary engineering of Incoloy800 alloy[J]. Shanghai Metals, 2013, 35(1): 16-20.
[16]赵清, 夏爽, 周邦新, 等. 形变及热处理对825合金管材晶界特征分布的影响[J]. 金属学报, 2015, 51(12): 1465-1471.
Zhao Qing, Xia Shuang, Zhou Bangxin, et al. Effect of deformation and thermomechanical processing on grain boundary character distribution of alloy 825 tubes[J]. Acta Metallurgica Sinica, 2015, 51(12): 1465-1471.
[17]王书晗, 刘振宇, 王国栋, 等. 热处理工艺对TWIP钢组织性能的影响[J]. 东北大学学报(自然科学版), 2008, 29(9): 1283-1286.
Wang Shuhan, Liu Zhenyu, Wang Guodong, et al. Effect of heat treatment process on microstructure and mechanical properties of TWIP steels[J]. Journal of Northeastern University (Natural Science), 2008, 29(9): 1283-1286.
[18]李永乐. 镍基超合金低 CSL Σ3ⁿ晶界演变规律分析及唯象型建模[D]. 重庆: 重庆大学, 2018: 37.
Li Yongle. Evolution analysis and phenomenological modeling of low CSL Σ3ⁿ boundary for Ni-based superalloy[D]. Chongqing: Chongqing University, 2018: 37.
[19]韩涛, 方晓英, 李宁, 等. 晶界特征分布优化改善304不锈钢晶间腐蚀研究[J]. 热加工工艺, 2011, 40(14): 59-61.
Han Tao, Fang Xiaoying, Li Ning, et al. Grain boundary character distribution improving intergranular corrosion of 304 stainless steel[J]. Hot Working Technology, 2011, 40(14): 59-61.