Transactions of Materials and Heat Treatment

Title：Manufacture of TA15 titanium alloy pipes by different processes

Authors： Luo Dengchao Wang Yun Li Wei

Unit： Western Titanium Technologies Co. Ltd.

KeyWords： TA15 titanium alloy pipe forging extrusion skew rolling

ClassificationCode：TG146.2

year,vol(issue):pagenumber：2022,47(8):118-122

Abstract：

The TA15 titanium alloy pipes were manufactured by three different processes such as forging, extrusion and skew rolling methods, and the differences in mechanical properties, microstructure, appearance size and production cost were compared. The results show that the TA15 titanium alloy pipes can be manufactured by three different processes with the tensile strength of 900-1130 MPa，the elongation≥9%，the section shrinkage≥25% and the impact energy≥28 J, and the surface quality and dimensional accuracy of pipes manufactured by forging method are better than those manufactured by extrusion or skew rolling methods. However, the microstructure of the TA15 titanium alloy pipes manufactured by forging or extrusion method is α+β dual-state microstructure, while the microstructure of the TA15 titanium alloy pipes manufactured by skew rolling method is coarse Widmanstatten microstructure. In addition, the TA15 titanium alloy pipes manufactured by forging or extrusion method has good comprehensive properties such as strength, plasticity and impact toughness, but the processing cost is high, and it is suitable for parts with high performance requirements, while the TA15 titanium alloy pipes manufactured by skew rolling method has poor plasticity, but the processing cost is the lowest, and it is suitable for occasions with low requirements for use. Thus, the research results provide theoretic guide for choosing the appropriate process for different requirements.

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作者简介：罗登超（1985-），男，硕士，高级工程师，E-mail：Ldcroben@126.com

Reference：

[1]GB/T 3620.1—2016，钛及钛合金牌号和化学成分[S].

GB/T 3620.1—2016，Designation and composition of titanium and titanium alloys[S].

[2]黄伯云, 李成功,石力开，等.有色金属材料手册[M].北京:化学工业出版社,2009.

Huang B Y,Li C G,Shi L K,et al.Handbook of Non-ferrous Metal Materials[M]. Beijing: Metallurgical Industry Press,2009.

[3]陈冬梅, 黄森森,贺飞，等. Fe元素对TA15钛合金显微组织和力学性能的影响[J].钛工业进展,2017,34(2):14-18.

Chen D M,Huang S S,He F,et al.Effects of Fe on the microstructures and mechanical properties of TA15 titanium alloy[J]. Titanium Industry Progress,2017,34(2):14-18.

[4]隋楠, 曹京霞,黄旭，等.合金成分对TA15钛合金组织及力学性能的影响[J].航空材料学报,2019,39(1):48-54.

Sui N,Cao J X,Huang X, et al.Effect of composition on microstructure and mechanicalproperties of TA15 titanium alloy[J]. Journal of Aeronautical Materials,2019,39(1):48-54.

[5]王昉, 缪强,梁文萍，等.热处理对TA15钛合金组织的影响[J].热处理,2015,30(2):24-27.

Wang F,Miao Q,Liang W P, et al.Effect ofheat treatment on microstructure of TA15 titanium alloy[J]. Heat Treatment，2015,30(2):24-27.

[6]李兴无, 沙爱学,张旺峰，等.TA15合金及其在飞机结构中的应用前景[J].钛工业进展,2003,20(4-5):90-94.

Li X W,Sha A X,Zhang W F,et al.TA15 titanium alloy and itsapplying prospects on airframe[J].Titanium Industry Progress，2003,20(4-5):90-94.

[7]刘全明, 张朝晖,刘世锋，等.钛合金在航空航天及武器装备领域的应用与发展[J].钢铁研究学报，2015,27(3):1-4.

Liu Q M,Zhang Z H,Liu S F,et al.Application and developmentof titanium alloy in aerospace and military hardware[J].Journal of Iron and Steel Research，2015,27(3):1-4.

[8]梁培新, 朱卫东,杨刚，等.渗氢工艺对TA15钛合金氢含量和显微组织的影响[J].锻压技术,2020,45(8):190-194.

Liang P X,Zhu W D,Yang G, et al.Influence of hydrogen permeation process on hydrogen content andmicrostructure of TA15 titanium alloy[J]. Forging & Stamping Technology，2020,45(8):190-194.

[9]代春, 李长江,杨陇林，等.退火制度对TA15挤压管材的组织与性能的影响[J].稀有金属快报,2008,27（12）：15-17.

Dai C,Li C J,Yang L L, et al.The effect of annealing process on microstructure and properties of TA15 alloy tube produced by extruding[J].Rare Metals Letters，2008,27(12):15-17.

[10]安耀辉, 高博,马龙，等.超大规格TA15钛合金棒材锻造工艺研究[J].钛工业进展,2013,30(5):22-25.

An Y H,Gao B,Ma L, et al.Research on forging process of super large-sized TA15 titanium alloy bars[J]. Titanium Industry Progress,2013,30(5):22-25.

[11]赵永庆, 葛鹏,辛社伟.近五年钛合金材料研发进展[J].中国材料进展,2020,39(7-8):527-534.

Zhao Y Q,Ge P,Xin S W.Progresses of R&D on Ti-alloy materials in recent 5 years[J].Materials China,2020,39(7-8):527-534.

[12]王云, 罗登超,王莎，等.热处理对Ti80冷轧管材性能和组织的影响[J].热加工工艺,2019,48(10):200-202.

Wang Y,Luo D C,Wang S, et al.Effect of heat treatment on mechanical properties and microstructure of Ti80 cold-rolled tubes[J].Hot Working Technology，2019,48(10):200-202.

[13]侯艳荣, 赖运金,杜予晅，等.热处理对TA15钛合金棒材冲击性能的影响[J].热加工工艺,2011,40(2)：182-183.

Hou Y R,Lai Y J,Du Y X, et al.Effect of heat treatment process on impact property of TA15 alloy[J]. Hot Working Technology,2011,40(2):182-183.

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