丁伟杰,崔霞,姜建飞,贾洪涛,范浩,欧阳德来,李鑫,张可竹,曾祥

• 1:南昌航空大学材料科学与工程学院
• 2:南昌航空大学航空制造工程学院
• 3:国网国际发展有限公司
• 4:国网江西省电力有限公司电力科学研究院

摘要(Abstract)：

首先对新型TB17钛合金进行了β相区(900～1050℃)保温不同时间(30～120 min)的固溶处理，并对固溶处理后合金晶粒尺寸进行了统计分析，研究了合金在β相区的晶粒生长行为及均匀性，计算了合金β相生长指数n和生长激活能Q,并建立了β相变点以上的β晶粒生长模型。结果表明，随保温时间的延长，合金β相的晶粒尺寸的变化趋势为先快速增加，后增加速率趋于缓慢。在较低加热温度(900～950℃)下，β晶粒缓慢增长，超过1000℃后，β晶粒快速增长。合金β相区晶粒平均生长指数为0.248,β相区晶粒生长激活能为51.9 kJ/mol;在晶粒尺寸均匀性方面，随保温时间的增加，β晶粒尺寸均匀性增加。保温时间低于60 min时，β晶粒尺寸均匀性差。β晶粒尺寸与保温时间存在幂函数关系。建立了β相变点以上的β晶粒生长模型D_n-D_0=13494×t~(0.248)exp(-71903/RT),模型计算值与实验数据的平均误差为5.5%。

关键词(KeyWords)： 新型TB17钛合金;β晶粒生长;均匀性;模型

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51261020);; 江西省自然科学基金(20242BAB25216)

作者(Author): 丁伟杰,崔霞,姜建飞,贾洪涛,范浩,欧阳德来,李鑫,张可竹,曾祥

DOI: 10.13289/j.issn.1009-6264.2023-0585

参考文献(References)：

• [1] 朱知寿，商国强，王新南，等.航空用钛合金显微组织控制和力学性能关系[J].航空材料学报，2020,40(3):1-10.ZHU Zhi-shou,SHANG Guo-qiang,WANG Xin-nan,et al.Microstructure controlling technology and mechanical properties relationship of titanium alloys for aviation applications[J].Journal of Aerospace Materials,2020,40(3):1-10.
• [2] 商国强，张晓泳，王新南，等.冷却速率对TB17钛合金显微组织和力学性能的影响[J].中国有色金属学报，2023,33(6):1758-1768.SHANG Guo-qiang,ZHANG Xiao-yong,WANG Xin-nan,et al.Effect of cooling rate on microstructure and properties of TB17 titanium alloy[J].The Chinese Journal of Nonferrous Metals,2023,33(6):1758-1768.
• [3] 肖树龙，陈兆琦，荆科，等.热处理对亚稳β钛合金显微组织与性能的影响[J].中国有色金属学报，2022,32(6):1655-1664.XIAO Shu-long,CHEN Zhao-qi,JING Ke,et al.Effect of heat treatment on microstructure and properties of metastable β titanium alloy[J].The Chinese Journal of Nonferrous Metals,2022,32(6):1655-1664.
• [4] 陈强，王庆娟，王鼎春，等.固溶温度对新型亚稳β钛合金组织与性能的影响[J].材料热处理学报，2016,37(8):29-35.CHEN Qiang,WANG Qing-juan,WANG Ding-chun,et al.Effect of solution temperature on microstructure and properties of new type metastable β titanium alloy[J].Transactions of Materials and Heat Treatment,2016,37(8):29-35.
• [5] 王鹏宇，张浩宇，张志鹏，等.固溶温度对亚稳β钛合金Ti-4Mo-6Cr-3Al-2Sn的组织和拉伸性能的影响[J].材料研究学报，2020,34(6):473-480.WANG Peng-yu,ZHANG Hao-yu,ZHANG Zhi-peng,et al.Effect of solution temperature on microstructure and tensile properties of a metastable β-Ti alloy Ti-4Mo-6Cr-3Al-2Sn[J].Chinese Journal of Materials Research,2020,34(6):473-480.
• [6] 葛鹏，赵永庆，周廉.固溶条件对一种新型亚稳β钛合金时效响应的影响(英文)[J].稀有金属材料与工程，2006(5):707-710.GE Peng,ZHAO Yong-qing,ZHOU Lian.Influence of solution conditions on aging response of a new metastable beta titanium alloy[J].Rare Metal Materials and Engineering,2006(5):707-710.
• [7] 张昭，郭保桥，冉春，等.固溶温度对TB6钛合金动态力学性能和微观组织的影响[J].高压物理学报，2021,35(6):107-113.ZHANG Zhao,GUO Bao-qiao,RAN Chun,et al.Effect of solution temperature on dynamic mechanical properties and microstructure of TB6 titanium alloy[J].Chinese Journal of High Pressure Physics,2021,35(6):107-113.
• [8] 李昌，任伟宁，杨健，等.TC4钛合金β热处理的显微组织演变[J].热加工工艺，2024,53(10):151-154.LI Chang,REN Wei-ning,YANG Jian,et al.Microstructure evolution of TC4 titanium alloy β heat treatment[J].Hot Working Technology,2024,53(10):151-154.
• [9] 王富强，张瑞雪，杨立新，等.热处理工艺对高强钛合金组织及力学性能的影响[J].中国材料进展，2023,42(5):415-420.WANG Fu-qiang,ZHANG Rui-xue,YANG Li-xin,et al.Effect of heat treatment on microstructure and mechanical properties of high strength titanium alloy[J].Materials China,2023,42(5):415-420.
• [10] 冯冉，寇宏超，常辉，等.固溶处理对一种近α钛合金显微组织的影响[J].稀有金属材料与工程，2008,37(10):1785-1789.FENG Ran,KOU Hong-chao,CHANG Hui,et al.Influence of solution treatment on nicrostructure of a near-α titanium alloy[J].Rare Metal Materials and Engineering,2008,37(10):1785-1789.
• [11] Sadeghpour S,Javaheri V,Abbasi S M,et al.The effect of phase stability on the grain growth behavior of beta titanium alloys[J].Physica B:Condensed Matter,2020,593:412315.
• [12] 吕亚平，邹金佃，张宏岭，等.TB17钛合金初生α相的析出激活能及TTT图[J].粉末冶金材料科学与工程，2021,26(6):500-506.Lü Ya-ping,ZOU Jin-du,ZHANG Hong-ling,et al.Precipitated activation energy and TTT curves of primary α phases in TB17 titanium alloy[J].Materials Science and Engineering of Powder Metallurgy,2021,26(6):500-506.
• [13] 朱鸿昌，罗军明，朱知寿.TB17钛合金高温压缩变形行为[J].航空材料学报，2019,39(3):44-52.ZHU Hong-chang,LU Jun-ming,ZHU Zhi-shou.High temperature compression deformation behavior of TB17 titanium alloy[J].Journal of Aerospace Materials,2019,39(3):44-52.
• [14] 信云鹏，朱知寿，王新南，等.TB17钛合金两相区等温时效析出行为研究[J].钛工业进展，2020,37(3):10-14.XIN Yun-peng,ZHU Zhi-shou,WANG Xin-nan,et al.Study on isothermal aging precipitation behavior of TB17 titanium alloy in α+β region[J].Titanium Industry Progress,2020,37(3):10-14.
• [15] 信云鹏，朱知寿，王新南，等.固溶冷却速率对全片层亚稳β钛合金α相形貌的影响[J].材料工程，2022,50(10):80-86.XIN Yun-peng,ZHU Zhi-shou,WANG Xin-nan,et al.Effect of solid solution cooling rate on the α-phase morphology of full lamellar metastable β titanium alloy[J].Materials Engineering,2022,50(10):80-86.
• [16] 王哲，王新南，商国强，等.新型超高强韧钛合金热变形行为研究[J].稀有金属材料与工程，2018,47(3):810-815.WANG Zhe,WANG Xin-nan,SHANG Guo-qiang,et al.Hot deformation behavior of new high Strength and toughness titanium alloy[J].Rare Metal Materials and Engineering,2018,47(3):810-815.
• [17] 欧阳德来，谢有美，胡圣伟，等.亚β固溶对TB17钛合金初生α相、元素重分布及时效析出的影响[J].稀有金属材料与工程，2023,52(2):710-718.OUYANG De-lai,XIE You-mei,HU Sheng-wei,et al.Effect of subcritical β solution treatment on the primary α phase,element partitioning and aging precipitation of TB17 titanium alloy[J].Rare Metal Materials and Engineering,2023,52(2):710-718.
• [18] 罗军明，朱鸿昌，朱知寿，等.TB17钛合金在等温时效过程中的相析出行为(英文)[J].稀有金属材料与工程，2021,50(11):3862-3870.LUO Jun-ming,ZHU Hong-chang,ZHU Zhi-shou,et al.Phase precipitation behaviour of TB17 titanium alloy during isothermal aging (in English)[J].Rare Metal Materials and Engineering,2021,50(11):3862-3870.
• [19] 王哲，王新南，祝力伟，等.TB17钛合金β相区晶粒长大行为[J].钛工业进展，2016,33(6):11-15.WANG Zhe,WANG Xin-nan,ZHU Li-wei,et al.Grain growth behavior in β single phase of TB17 titanium alloy[J].Titanium Industry Progress,2016,33(6):11-15.
• [20] Welsch G,Boyer R,Collings E W.Materials Properties Handbook:Titanium Alloys[M].Ohio:ASM International,1993.
• [21] 马英杰，刘建荣，雷家峰，等.钛合金β晶粒生长规律及晶粒尺寸对损伤容限性能的影响[J].稀有金属材料与工程，2009,38(6):976-981.MA Ying-jie,LIU Jian-rong,LEI Jia-feng,et al.β-grain growth and influence of its grain size on damage-tolerance property in titanium alloy[J].Rare Metal Materials and Engineering,2009,38(6):976-981.
• [22] Wang T,Guo H,Tan L,et al.Beta grain growth behaviour of TG6 and Ti17 titanium alloys[J].Materials Science and Engineering A,2011,528(21):6375-6380.
• [23] Gil F J,Picas J A,Manero J M,et al.Effect of the addition of palladium on grain growth kinetics of pure titanium[J].Journal of Alloys and Compounds,1997,260(1/2):147-152.
• [24] Hillert M.On the theory of normal and abnormal grain growth[J].Acta Metallurgica,1965,13(3):227-238.
• [25] Burke J E,Turnbull D.Recrystallization and grain growth[J].Progress in Metal Physics,1952,3:220-292.

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