郭小汝,张俊喜,易湘斌,陈百明,李宝栋,徐创文

• 1:兰州工业学院材料工程学院
• 2:兰州工业学院绿色切削加工技术及应用甘肃省重点实验室

摘要(Abstract)：

研究了固溶温度对TC18钛合金中次生α相含量的影响,并利用分离式霍普金森压杆,在高应变率(1000～3000 s~(-1))条件下,进一步研究了次生α相含量对TC18钛合金动态压缩性能及绝热剪切敏感性的影响。结果表明,随着固溶温度的升高,次生α相的含量由约46%增加到约71%;高应变率下,随着次生α相含量升高,TC18钛合金流变应力增大、塑性应变减小、绝热敏感性增大。分析表明,引起这种变化的主要原因是在固溶过程中,随着温度的升高,亚稳β相生成量增加,使得后续时效过程中的交错分布次生α相析出量增加,从而提高了合金强度,塑性降低。在动态压缩条件下,近网篮组织的TC18钛合金随应变率的提高,绝热剪切敏感性增加。

关键词(KeyWords)： TC18钛合金;动态压缩性能;剪切敏感性;次生α相

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51865026);; 甘肃省自然基金(18JR3RA229);; 兰州工业学院青年科技基金(18K014)

作者(Author): 郭小汝,张俊喜,易湘斌,陈百明,李宝栋,徐创文

DOI: 10.13289/j.issn.1009-6264.2020-0195

参考文献(References)：

• [1] 毛萍莉,孙庆海,刘正,等.微观组织状态对Ti-6Al-4V合金动态力学性能和绝热剪切敏感性的影响[J].稀有金属,2016,40 (12):1207-1213.MAO Ping-li,SUN Qing-hai,LIU Zheng,et al.Mechanical properties and adiabatic shear sensitivity of Ti-6Al-4V alloy with different microstructures[J].Chinese Journal of Rare Metals,2016,40 (12):1207-1213.
• [2] 靳丹,程兴旺,郑超,等.片层宽度对TC21钛合金动态压缩性能及其绝热剪切敏感性的影响规律[J].稀有金属材料与工程,2016,45 (11):2953-2958.JIN Dan,CHENG Xing-wang,ZHENG Chao,et al.Effects of lamellar α thickness on dynamic mechanical properties and sensitivity to adiabatic shear banding of TC21 alloy[J].Rare Metal Materials and Engineering,2016,45 (11):2953-2958.
• [3] 杨红斌,向文丽,徐媛,等.冷却方式对TC21钛合金绝热剪切敏感性的影响[J].中国有色金属学报,2017,27 (5):920-926.YANG Hong-bin,XIANG Wen-li,XU Yuan,et al.Effect of cooling ways on adiabatic shear sensitivity of TC21 titanium alloy[J].Chinese Journal of Nonferrous Metals,2017,27 (5):920-926.
• [4] 易湘斌,张俊喜,李宝栋,等.高温、高应变率下TB6钛合金的动态压缩性能[J].稀有金属材料与工程,2019,48 (4):1220-1224.YI Xiang-bin,ZHANG Jun-xi,LI Bao-dong,et al.Dynamic compressive mechanical properties of TB6 titanium alloy under high temperature and high strain rate[J].Rare Metal Materials and Engineering,2019,48 (4):1220-1224.
• [5] 黄斌,任维佳,张艳敏,等.魏氏组织TC17钛合金绝热剪切带(ASB)的组织与织构[J].稀有金属材料与工程,2018,47 (9):2705-2710.HUANG Bin,REN Wei-jia,ZHANG Yan-min,et al.Microstructure and texture of adiabatic shear band(ASB) in TC17 titanium alloy with widmanstatten microstructure[J].Rare Metal Materials and Engineering,2018,47 (9):2705-2710.
• [6] 许峰,张喜燕,程佑铭.动态塑性变形纯钛的绝热剪切带研究[J].稀有金属材料与工程,2013,42(4):801-804.XU Feng,ZHANG Xi-yan,CHENG You-ming.Study on adiabatic shear band in pure titanium subjected to dynamic plastic deformation[J].Rare Metal Materials and Engineering,2013,42(4):801-804.
• [7] 李建崇,李树奎,范群波,等.微观组织对Ti-6Al-4V-4Zr-1.5Mo 合金绝热剪切敏感性的影响[J].稀有金属材料与工程,2012,41(1):45-48.LI Jian-chong,LI Shu-kui,FAN Qun-bo,et al.Effects of microstructure on the adiabatic shear banding sensitivity of Ti-6Al-4V-4Zr-Mo alloy[J].Rare Metal Materials and Engineering,2012,41(1):45-48.
• [8] 徐媛,孙坤,杨永安.TC18钛合金绝热剪切带晶粒细化机制[J].稀有金属材料与工程,2011,40(8):1454-1457.XU Yuan,SUN Kun,YANG Yong-an.Refining mechanisms of grains in the adiabatic shear band of TC18 titanium alloy[J].Rare Metal Materials and Engineering,2011,40(8):1454-1457.
• [9] 付士军.热处理温度对TC18钛合金组织和性能的影响[J].热加工工艺,2015,44 (24):219-221.FU Shi-jun.Effect of heat treatment temperature on microstruture and mechanical properties of TC18 Ti alloy[J].Hot Working Technology,2015,44 (24):219-221.
• [10] 王晓燕,郭鸿镇,姚泽坤,等.双重退火对TC18钛合金等温锻件组织性能的影响[J].材料热处理学报,2009,30(1):100-103.WANG Xiao-yan,GUO Hong-zhen,YAO Ze-kun,et al.Effect of duplex annealing on microstructure and properties of TC18 titanium alloy isothermally forged[J].Transactions of Materials and Heat Treatment,2009,30(1):100-103.
• [11] 孟笑影,庞克昌,殷俊林.热处理工艺对TC18钛合金组织和性能的影响[J].热处理,2006,21(1):36-39.MENG Xiao-ying,PANG Ke-chang,YIN Jun-lin.Effect of heat treatment process on structure and property of TC18 titanium alloy[J].Heat Treatment,2006,21(1):36-39.
• [12] 邓喆,张晓泳,李志友,等.固溶-时效对TC18钛合金显微组织与性能的影响[J].材料热处理学报,2014,35(8):23-30.DENG Zhe,ZHANG Xiao-yong,LI Zhi-you,et al.Effect of solution and aging treatment on microstructure and mechanical properties of TC18 titanium alloy[J].Transactions of Materials and Heat Treatment,2014,35(8):23-30.
• [13] 冉春,陈鹏万,李玲,等.中高应变率条件下TC18钛合金动态力学行为的实验研究[J].兵工学报,2017,38(9):62-67.RAN Chun,CHEN Peng-wan,LI Ling,et al.Experimental research on dynamic mechanical behavior of TC18 titanium alloy under medium and high strain rates[J].Acta Armamentarii,2017,38(9):62-67.
• [14] 贾宝华,刘思勇,李革,等.基于J-C模型的TC18钛合金动态本构方程构建[J].钛工业进展,2018,35(5):24-28.JIA Bao-hua,LIU Si-yong,LI Ge,et al.Establishment of dynamic constitutive equation for TC18 titanium alloy based on J-C model[J].Titanium Industry Progress,2018,35(5):24-28.
• [15] 张长清,谢兰生,陈明和,等.高应变率下TC4-DT钛合金的动态力学性能及塑性本构关系[J].中国有色金属学报,2015,25 (2):323-329.ZHANG Chang-qing,XIE Lan-sheng,CHEN Ming-he,et al.Dynamic mechanical property and plastic constitutive relation of TC4-DT Ti alloy under high strain rate[J].Chinese Journal of Nonferrous Metals,2015,25 (2):323-329.
• [16] 彭美旗,程兴旺,郑超,等.次生片层α相宽度对双态组织TC4钛合金动态压缩性能及其绝热剪切敏感性的影响[J].稀有金属材料与工程,2017,46(7):1843-1849.PENG Mei-qi,CHENG Xing-wang,ZHENG Chao,et al.Effects of secondary α phase width on dynamic mechanical properties and sensitivity of adiabatic shear banding in bimodal microstructures of TC4 alloy[J].Rare Metal Materials and Engineering,2017,46(7):1843-1849.

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