Ti6321钛合金在Taylor杆冲击下的动态断裂微观组织观测

doi:10.3969/j.issn.1000-1093.2020.07.018

兵工学报 ›› 2020, Vol. 41 ›› Issue (7): 1401-1407.doi: 10.3969/j.issn.1000-1093.2020.07.018

Ti6321钛合金在Taylor杆冲击下的动态断裂微观组织观测

徐雪峰¹，王琳^1,2,3，程兴旺^1,2，刘安晋¹， Tayyeb Ali¹，周哲¹，宁子轩¹，张斌斌⁴，赵登辉⁵

(1.北京理工大学材料学院，北京 100081; 2.北京理工大学冲击环境材料技术国家级重点实验室，北京 100081;3.北京理工大学爆炸科学与技术国家重点实验室，北京 100081; 4.洛阳船舶材料研究所，河南洛阳 471023;5.中国兵器工业标准化研究所，北京 100089)

收稿日期:2019-05-13 修回日期:2019-05-13 上线日期:2020-09-23
作者简介:徐雪峰（1995—），男，硕士研究生。 E-mail: bit_xfx@163.com
基金资助:
爆炸科学与技术国家重点实验室基金项目（YBKT-17-06）

Dynamic Observation of Fracture Microstructure of Ti6321 Titanium Alloy in TaylorBar Impact Test

XU Xuefeng¹， WANG Lin^1,2,3， CHENG Xingwang^1,2， LIU Anjin¹， TAYYEB Ali¹, ZHOU Zhe¹， NING Zixuan¹， ZHANG Binbin⁴， ZHAO Denghui⁵

(1.School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China; 2.National Key Laboratory of Science and Technology on Materials under Shock and Impact, Beijing Institute of Technology, Beijing 100081, China; 3.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China; 4.Luoyang Ship Materials Research Institute, Luoyang 471023, Henan, China; 5.China Ordnance Industrial Standardization Research Institute, Beijing 100089, China)

Received:2019-05-13 Revised:2019-05-13 Online:2020-09-23

摘要/Abstract

摘要： 通过固溶处理获得近α型Ti6321钛合金的双态和魏氏组织，研究不同组织对材料在Taylor杆冲击条件下动态损伤和断裂行为的影响。利用Taylor杆对材料进行动态加载，弹体的撞击速度范围为146~228 m/s，结合光学显微镜、扫描电子显微镜和定量金相表征方法对其微观组织演化进行观察分析。结果表明：双态组织的Ti6321合金具有更好的抗冲击性能；双态组织和魏氏组织试样在加载后的显微组织均发生了明显变化，随着冲击加载速度的增加，双态组织的初生α晶粒尺寸由25.3 μm减小至16.7 μm，次生α相和β相在载荷作用下变形、碎化；对于魏氏组织钛合金，次生α相沿受力方向显著拉长；观察断口可以发现，两种组织试样的断口均可以分为光滑熔融区和韧窝区，两个区域之间的界限并不明显；两种组织试样均发生了绝热剪切破坏，相比于魏氏组织，双态组织Ti6321合金具有较低的绝热剪切敏感性。

关键词: 钛合金, 动态断裂行为, Taylor杆冲击实验, 绝热剪切带

Abstract: The duplex and lamellar structures were obtained by heat treatment of near α-Ti6321 alloy. The influences of different microstructures on the dynamic damage and fracture behavior of material are investigated under Taylor bar impact test. The Taylor bar is used to test the cylindrical samples under dynamic compression loading, with impact velocity ranging from 146 m/s to 228 m/s. The microstructure evolution is observed and analyzed by using optical microscope, scanning electronic microscopy and quantitative metallography. The experimental results show that Ti6321 alloy with duplex structure exhibits better impact resistance property. All samples deform significantly after dynamic compression loading. With increase in impact velocity, the primary α grain size of the duplex structure decreases from 25.3 μm to 16.7 μm, and the secondary α phase and β phase are deformed and crushed under dynamic loading. The secondary α phase of lamellar structure samples is significantly elongated along the direction of the loading. The smooth melting areas and dimple areas can be observed from the impact fracture morphologies, and the boundary between two areas is not obvious. The failure mode of titanium alloy with both the structures is adiabatic shear banding. Compared to lamellar structure samples, Ti6321 alloy with duplex structure exhibits a better capability to resist an adiabatic shear damage. Key

Key words: titaniumalloy, dynamicfracturebehavior, Taylorbarimpacttest, adiabaticshearbanding

中图分类号:

TG146.23

徐雪峰，王琳，程兴旺，刘安晋， Tayyeb Ali，周哲，宁子轩，张斌斌，赵登辉. Ti6321钛合金在Taylor杆冲击下的动态断裂微观组织观测[J]. 兵工学报, 2020, 41(7): 1401-1407.

XU Xuefeng， WANG Lin， CHENG Xingwang， LIU Anjin， TAYYEB Ali, ZHOU Zhe， NING Zixuan， ZHANG Binbin， ZHAO Denghui. Dynamic Observation of Fracture Microstructure of Ti6321 Titanium Alloy in TaylorBar Impact Test[J]. Acta Armamentarii, 2020, 41(7): 1401-1407.

参考文献

［1］ BANERJEE D, WILLIAMS J C. Perspectives on titanium science and technology[J]. Acta Materialia, 2013, 61(3): 844-879.
[2] 赵永庆. 国内外钛合金研究的发展现状及趋势[J]. 中国材料进展, 2010, 29(5):1-8.
ZHAO Y Q. Current situation and development trend of titanium alloys[J]. Materials China, 2010, 29(5):1-8. (in Chinese)
[3] GOODE R J, HUBER R W. Fracture toughness characteristics of some titanium alloys for deep-diving vehicles[J]. Journal of Metals, 1965, 17: 841-846.
[4] CHEN J, WANG T X, ZHOU W, et al. Domestic and foreign marine titanium alloy and its application[J]. Titanium Industry Progress, 2015, 32(6):8-12.
[5] WANG X X, ZHAN M, FU M W, et al. Microstructure evolution of Ti-6Al-2Zr-1Mo-1V alloy and its mechanism in multi-pass flow forming[J]. Journal of Materials Processing Technology, 2018, 261: 86-97.
[6] 孙建科, 孟祥军, 陈春和, 等. 我国船用钛合金研究、应用及发展[J]. 金属学报, 2002, 38(增刊):33-36.
SUN J K, MENG X J, CHEN C H, et al. Research, application and development of shipbuilding titanium alloy in China[J]. Acta Metallurgica Sinca, 2002, 38(S): 33-36. (in Chinese)

[7] 陈军, 赵永庆, 常辉. 中国船用钛合金的研究和发展[J]. 材料导报, 2005, 19(6):67-70.
CHEN J, ZHAO Y Q, CHANG H. Research and development of titanium alloy for shipbuilding in China[J]. Material Reports, 2005, 19(6):67-70. (in Chinese)

[8] 孟祥军, 时锦. 漫谈钛合金在舰船上的应用[J]. 钛工业进展, 2003, 20(4): 23-26.
MENG X J, SHI J. Application of titanium alloys for naval vessels[J]. Titanium Industry Progress, 2003, 20(4): 23-26. (in Chinese)

[9] WANG Q, REN J Q, WU Y K, et al. Comparative study of crack growth behaviors of fully-lamellar and bi-lamellar Ti-6Al-3Nb-2Zr-1Mo alloy[J]. Journal of Alloys and Compounds, 2019, 789: 249-255.

[10] 陈海生, 罗锦华, 王涛, 等. 热处理对Ti-6Al-3Nb-2Zr-1Mo合金组织和性能的影响[J]. 热加工工艺, 2016, 45(4):217-220.

CHEN H S, LUO J H, WANG T, et al. Effect of heat treatment on microstructure and properties of Ti-6Al-3Nb-2Zr-1Mo alloy[J]. Hot Working Technology, 2016, 45(4):217-220. (in Chinese)
[11] 李梁, 宋德军. Ti80合金热压缩变形组织与加工图[J]. 中国有色金属学报, 2010, 20(1):738-742.
LI L, SONG D J. Microstructure and processing map of hot compressing deformation of Ti80 alloy[J]. The Chinese Journal of Nonferrous Metals, 2010, 20(1):738-742. (in Chinese)

[12] GAO F Y, GAO Q, JIANG P, et al. Microstructure and mecha- nical properties of Ti6321 alloy welded joint by EBW[J]. International Journal of Lightweight Materials and Manufacture, 2018, 1(4): 265-269.
[13] GAO F Y, GAO Q, JIANG P, et al. Microstructure and properties of titanium alloy electron beam weldments based on the different heat input conditions of the same line energy[J]. Vacuum, 2017, 146: 136-141.
[14] ROHR I, NAHME H, THOMA K, et al. Material characterization and constitutive modeling of a tungsten-sintered alloy for a wide range of strain rates[J]. International Journal of Impact Engineering, 2008, 35(8):811-819.
[15] TAYLOR G. The use of flat-ended projectiles for determining dynamic yield stress. Ⅰ. Theoretical considerations[J]. Proceedings of the Royal Society of London, 1948, 194(1038):289-299.
[16] REN Y, TAN C W, ZHANG J, et al. Dynamic fracture of Ti-6Al-4V alloy in Taylor impact test[J]. Transactions of Nonferrous Metals Society of China, 2011, 21(2):223-235.
[17] ZHAO D H, WANG Q, WANG L, et al. Dynamic fracture of Ti-5553 alloy in Taylor impact test[J]. Journal of Beijing Institute of Technology, 2017, 26(1):135-142.
[18] LOPATNIKOV S L, GAMA B A, HAQUE M J, et al. Dynamics of metal foam deformation during Taylor cylinder–Hopkinson bar impact experiment[J]. Composite Structures, 2003, 61(1/2): 61-71.
[19] 杜文文, 王琳, 赵登辉, 等. 基于Taylor杆的Ti-5553钛合金动态特性研究[J]. 兵工学报, 2015, 36(9): 1750-1756.
DU W W, WANG L, ZHAO D H, et al. Study of the dynamic behavior of Ti-5553 alloy based on Taylor bar impacting test[J]. Acta Armamentarii, 2015, 36(9): 1750-1756.(in Chinese)
[20] 徐雪峰, 王琳, 程兴旺, 等. Ti6321钛合金高温力学性能和显微组织的研究[J]. 中国体视学与图像分析, 2019, 24(2): 118-125.
XU X F, WANG L, CHENG X W, et al. Research on high temperature mechanical property and deformation behavior of Ti6321 titanium alloy[J]. Chinese Journal of Stereology and Image Analysis, 2019, 24(2):118-125. (in Chinese)
[21] 智茂盛. 新型近βTi-5553 合金组织结构与动态力响应的研究[D]. 北京: 北京理工大学, 2013．
ZHI M S. Dynamic response and microstructure of a new near-beta Ti-5553 alloy[D]. Beijing: Beijing Institute of Technology, 2013. (in Chinese)

[22] ZHOU T F, WU J J, CHE J T, et al. Dynamic shear characteristics of titanium alloy Ti-6Al-4V at large strain rates by the split Hopkinson pressure bar test[J]. International Journal of Impact Engineering, 2017, 109: 167-177.

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Ti6321钛合金在Taylor杆冲击下的动态断裂微观组织观测

Dynamic Observation of Fracture Microstructure of Ti6321 Titanium Alloy in TaylorBar Impact Test

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