首页 > 论文 > 中国激光 > 45卷 > 11期(pp:1102003--1)

层间停留时间对激光熔化沉积TC11钛合金组织与力学性能的影响

Effect of Interlayer Residence Time on Microstructures and Mechanical Properties of Laser Melting Deposited TC11 Titanium Alloys

  • 摘要
  • 论文信息
  • 参考文献
  • 被引情况
  • PDF全文
分享:

摘要

采用激光熔化沉积技术成形了TC11钛合金,研究了层间停留时间对其组织及性能的影响。结果表明,沉积态试样的宏观组织随层间停留时间的增加由等轴晶向柱状晶转变;在不同层间停留时间下,沉积态试样的内部均为极细α+β网篮组织,因此沉积态试样的力学性能呈高强低塑特征。随着层间停留时间的增加,沉积态试样的宏观层带现象更加明显,室温力学性能的各向异性显著增大,这是因为后续沉积层对已沉积层的表层重熔再沉积和热处理效应导致局部组织粗化、α相比例增加,进而引起沉积方向网篮组织的规律性不均匀。

Abstract

The TC11 titanium alloys are formed by the laser melting deposition technique and the effect of interlayer residence time on their microstructures and mechanical properties is investigated. The results show that the macrostructures of as-deposited samples change from equiaxed grains to columnar ones with the increase of interlayer residence time. For different interlayer residence time, there always exist extremely fine α+β basket-weave structures within the as-deposited samples, and as a result, the mechanical properties of these samples possess the characteristics of high strength and low plasticity. With the increase of interlayer residence time, the macroscopic layer band phenomenon becomes more and more clear, and simultaneously the anisotropy of mechanical properties at room temperature becomes more and more remarkable, which results from the coarsening of local microstructure, the increase of α phase proportion, and further regularity inhomogeneity of basket-weave microstructures in the deposition direction caused by surface remelting redeposition and annealing effects of current deposition layers.

Newport宣传-MKS新实验室计划
补充资料

中图分类号:TN249

DOI:10.3788/cjl201845.1102003

所属栏目:激光制造

收稿日期:2018-05-14

修改稿日期:2018-06-13

网络出版日期:2018-06-22

作者单位    点击查看

严振宇:首都航天机械有限公司, 北京 100076
周庆军:首都航天机械有限公司, 北京 100076
侯谊飞:首都航天机械有限公司, 北京 100076
杨光伟:首都航天机械有限公司, 北京 100076
马存强:首都航天机械有限公司, 北京 100076
王福德:首都航天机械有限公司, 北京 100076

联系人作者:周庆军(zhouqingjunxxx@163.com); 严振宇(yzy72631@aliyun.com);

【1】Xi M Z, Lü C, Wu Z H, et al. Microstructures and mechanical properties of TC11 titanium alloy formed by laser rapid forming and its combination with consecutive point-mode forging[J]. Acta Metallurgica Sinica, 2017, 53(9): 1065-1074.
席明哲, 吕超, 吴贞号, 等. 连续点式锻压激光快速成形TC11钛合金的组织和力学性能[J]. 金属学报, 2017, 53(9): 1065-1074.

【2】Huang Y, Chen J, Zhang F Y, et al. Influence of heat treatment on microstructure of laser solid forming Ti-6.5Al-3.5Mo-1.5Zr-0.25Si alloys[J]. Rare Metal Materials and Engineering, 2009, 38(12): 2146-2150.
黄瑜, 陈静, 张凤英, 等. 热处理对激光立体成形TC11钛合金组织的影响[J]. 稀有金属材料与工程, 2009, 38(12): 2146-2150.

【3】Zhao W Q, Chen J, Yang J Q, et al. Influences of laser solid forming process on microstructure and mechanical properties of TC11 titanium alloy[J]. Applied Laser, 2012, 32(6): 479-483.
赵卫强, 陈静, 杨杰穷, 等. 激光立体成形工艺对TC11钛合金组织和力学性能的影响[J]. 应用激光, 2012, 32(6): 479-483.

【4】Banerjee D, Williams J C. Perspectives on titanium science and technology[J]. Acta Materialia, 2013, 61(3): 844-879.

【5】Li M Q, Liu X M, Xiong A M. Prediction of the mechanical properties of forged TC11 titanium alloy by ANN[J]. Journal of Materials Processing Technology, 2002, 121(1): 1-4.

【6】Zong Y Y, Shan D B, Xu M, et al. Flow softening and microstructural evolution of TC11 titanium alloy during hot deformation[J]. Journal of Materials Processing Technology, 2009, 209(4): 1988-1994.

【7】Li A B, Huang L J,Meng Q Y, et al. Hot working of Ti-6Al-3Mo-2Zr-0.3Si alloy with lamellar α+β starting structure using processing map[J]. Materials and Design, 2009, 30(5): 1625-1631.

【8】Wang H M, Zhang S Q, Tang H B, et al. Research progress of laser rapid forming technology of large titanium structural components[J]. Aviation Precision Manufacturing Technology, 2008, 44(6): 28-30.
王华明, 张述泉, 汤海波, 等. 大型钛合金结构件激光快速成形技术研究进展[J]. 航空精密制造技术, 2008, 44(6): 28-30.

【9】Wang H M. Materials′ fundamental issues of laser additive manufacturing for high-performance large metallic components[J]. Acta Aeronautica et Astronautica Sinica, 2014, 35(10): 2690-2698.
王华明. 高性能大型金属构件激光增材制造: 若干材料基础问题[J]. 航空学报, 2014, 35(10): 2690-2698.

【10】Wang H M. Research progress of laser rapid forming of aviation high-performance metal structural components[J]. Aeronautical Manufacturing Technology, 2005(12): 26-28.
王华明. 航空高性能金属结构件激光快速成形研究进展[J]. 航空制造技术, 2005(12): 26-28.

【11】Wang H M, Zhang S Q, Wang X M. Progress and challenges of laser direct manufacturing of large titanium structural components[J]. Chinese Journal of Lasers, 2009, 36(12): 3204-3209.
王华明, 张述泉, 王向明. 大型钛合金结构件激光直接制造的进展与挑战[J]. 中国激光, 2009, 36(12): 3204-3209.

【12】Zhu Y Y, Tian X J, Li J, et al. Microstructure evolution and layer bands of laser melting deposition Ti-6.5Al-3.5Mo-1.5Zr-0.3Si titanium alloy[J]. Journal of Alloys and Compounds, 2014, 616: 468-474.

【13】Ren H S, Tian X J, Liu D, et al. Microstructural evolution and mechanical properties of laser melting deposited Ti-6.5Al-3.5Mo-1.5Zr-0.3Si titanium alloy[J]. Transactions of Nonferrous Metals Society of China, 2015, 25(6): 1856-1864.

【14】Lu S S, Bao R, Wang K, et al. Fatigue crack growth behaviour in laser melting deposited Ti-6.5Al-3.5Mo-1.5Zr-0.3Si alloy[J]. Materials Science and Engineering: A, 2017, 690: 378-386.

【15】Zhu Y Y, Liu D, Tian X J, et al. Characterization of microstructure and mechanical properties of laser melting deposited Ti-6.5Al-3.5Mo-1.5Zr-0.3Si titanium alloy[J]. Materials and Design, 2014, 56: 445-453.

【16】Wang T, Zhu Y Y, Zhang S Q, et al. Grain morphology evolution behavior of titanium alloy components during laser melting deposition additive manufacturing[J]. Journal of Alloys and Compounds, 2015, 632: 505-513.

【17】Zhu Y Y, Li J, Tian X J, et al. Microstructure and mechanical properties of hybrid fabricated Ti-6.5Al-3.5Mo-1.5Zr-0.3Si titanium alloy by laser additive manufacturing[J]. Materials Science and Engineering: A, 2014, 607: 427-434.

【18】He R J, Wang H M. Microstructure features of laser deposited Ti-6Al-2Zr-Mo-V alloy[J]. Journal of Aeronautical Materials, 2009, 29(6): 18-22.
贺瑞军, 王华明. 激光熔化沉积Ti-6Al-2Zr-Mo-V钛合金组织特征研究[J]. 航空材料学报, 2009, 29(6): 18-22.

【19】Li Z, Cheng X, Li J, et al. Thermal expansion properties of laser melting deposited Ti-6.5Al-2Zr-1Mo-1V alloy during α+β zone annealing[J]. Materials Characterization, 2017, 128: 115-122.

【20】Li Z, Li J, Liu J, et al. Structure and formation mechanism of α/α interface in laser melting deposited α+β titanium alloy[J]. Journal of Alloys and Compounds, 2016, 657: 278-285.

【21】Yang G, Wang W D, Qin L Y, et al. Effect of annealing temperature on microstructure and mechanical properties of laser deposited TA15 titanium alloys[J]. Chinese Journal of Lasers, 2016, 43(12): 1202007.
杨光, 王文东, 钦兰云, 等. 退火温度对激光沉积TA15合金组织及性能的影响[J]. 中国激光, 2016, 43(12): 1202007.

【22】Qin L Y, Xu L L, Yang G, et al. Effect of annealing method on microstructure and mechanical properties of TA15 titanium alloys by laser deposition manufacturing[J]. Chinese Journal of Lasers, 2018, 45(3): 0302004.
钦兰云, 徐丽丽, 杨光, 等. 退火方式对激光沉积TA15钛合金组织及力学性能的影响[J]. 中国激光, 2018, 45(3): 0302004.

【23】Liu C M, Tian X J, Tang H B, et al. Microstructural characterization of laser melting deposited Ti-5Al-5Mo-5V-1Cr-1Fe near β titanium alloy[J]. Journal of Alloys and Compounds, 2013, 572: 17-24.

【24】Liu C M, Wang H M, Tian X J, et al. Microstructure and tensile properties of laser melting deposited Ti-5Al-5Mo-5V-1Cr-1Fe near β titanium alloy[J]. Materials Science and Engineering: A, 2013, 586: 323-329.

【25】Liu C M, Wang H M, Tian X J, et al. Development of a pre-heat treatment for obtaining discontinuous grain boundary α in laser melting deposited Ti-5Al-5Mo-5V-1Cr-1Fe alloy[J]. Materials Science and Engineering: A, 2014, 604: 176-182.

【26】Liu C M, Lu Y, Tian X J, et al. Influence of continuous grain boundary α on ductility of laser melting deposited titanium alloys[J]. Materials Science and Engineering: A, 2016, 661: 145-151.

【27】Liu C M,Yu L, Zhang A L, et al. Beta heat treatment of laser melting deposited high strength near β titanium alloy[J]. Materials Science and Engineering: A, 2016, 673: 185-192.

引用该论文

Yan Zhenyu,Zhou Qingjun,Hou Yifei,Yang Guangwei,Ma Cunqiang,Wang Fude. Effect of Interlayer Residence Time on Microstructures and Mechanical Properties of Laser Melting Deposited TC11 Titanium Alloys[J]. Chinese Journal of Lasers, 2018, 45(11): 1102003

严振宇,周庆军,侯谊飞,杨光伟,马存强,王福德. 层间停留时间对激光熔化沉积TC11钛合金组织与力学性能的影响[J]. 中国激光, 2018, 45(11): 1102003

您的浏览器不支持PDF插件,请使用最新的(Chrome/Fire Fox等)浏览器.或者您还可以点击此处下载该论文PDF