首页 > 论文 > 中国激光 > 47卷 > 6期(pp:602002--1)

硼对激光增材制造TC4微观组织及力学性能的影响

Effect of B on Microstructure and Tensile Properties of Laser Additive Manufactured TC4 Alloy

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

摘要

在TC4粉中加入不同含量的硼粉进行激光增材制造试验,研究了硼对激光增材制造TC4钛合金微观组织及力学性能的影响。结果表明:添加微量硼可以有效细化原始柱状晶和晶内的板条α相;当硼的质量分数为0.05%时,原始β柱状晶的生长被限制,柱状晶的宽度明显减小;当硼的质量分数为0.1%时,原始柱状晶大量转变为等轴晶,晶内板条α集束的尺寸减小;对比没有添加硼的激光增材制造TC4,TC4-0.05B的塑性明显提高,但强度的变化不明显;沉积态和固溶时效态TC4-0.05B力学性能的各向异性都较小。

Abstract

In this study, B powders of different contents are added into TC4 powders and the laser additive manufacturing (LAM) experiment is conducted. Influence of the addition of B on the microstructure and mechanical properties of samples is investigated. Results show that the addition of trace B can effectively refine the microstructure size of TC4 alloy produced using LAM. The growth of the prior-β grains in LAM-TC4 alloy is restrained by an addition of 0.05% B, and the grain width is significantly decreased. An addition of 0.1% B can promote the transformation from coarse prior-β crystals to equiaxed crystals and result in a great reduction of the size of α bundle. Plasticity of the TC4-0.05B alloy is evidently improved compared with that of the boron-free TC4 alloy, whereas the change in the strength is not significant. Anisotropy of the as-deposited TC4-0.05B alloy and TC4-0.05B-solution aging is low.

广告组1 - 空间光调制器+DMD
补充资料

中图分类号:TG146.2+3

DOI:10.3788/CJL202047.0602002

所属栏目:激光制造

基金项目:国家重点研发计划、国家自然科学基金;

收稿日期:2019-12-02

修改稿日期:2020-03-06

网络出版日期:2020-06-01

作者单位    点击查看

齐振佳:西安交通大学金属材料强度国家重点实验室, 陕西 西安 710049
张晓星:西安交通大学金属材料强度国家重点实验室, 陕西 西安 710049
王豫跃:西安交通大学金属材料强度国家重点实验室, 陕西 西安 710049
霍浩:西安交通大学机械制造系统工程国家重点实验室, 陕西 西安 710049
王宏:西安交通大学机械制造系统工程国家重点实验室, 陕西 西安 710049
张金智:西安交通大学机械制造系统工程国家重点实验室, 陕西 西安 710049
张安峰:西安交通大学机械制造系统工程国家重点实验室, 陕西 西安 710049

联系人作者:王豫跃(wangyy@xjtu.edu.cn)

备注:国家重点研发计划、国家自然科学基金;

【1】Wang G S. Application technology of titanium[M]. Changsha: Central South University Press, 2007, 30-35.
王桂生. 钛的应用技术[M]. 长沙: 中南大学出版社, 2007, 30-35.

【2】Donoghue J, Sidhu J, Wescott A, et al. Integration of deformation processing with additive manufacture of Ti-6Al-4V components for improved β grain structure and texture[M]. ∥144th Annual Meeting & Exhibition: , 2015, 437-444.

【3】Huang W D, Lin X, Chen J, et al. Laser solid forming technology[M]. Xi''''an: Northwestern Polytechnical University Press, 2007, 126-142.
黄卫东, 林鑫, 陈静. 激光立体成形:高性能致密金属零件的快速自由成形[M]. 西安: 西北工业大学出版社, 2007, 126-142.

【4】Carroll B E, Palmer T A, Beese A M. Anisotropic tensile behavior of Ti-6Al-4V components fabricated with directed energy deposition additive manufacturing [J]. Acta Materialia. 2015, 87: 309-320.

【5】Li J, Lin X, Qian Y H, et al. Study on microstructure and property of laser solid forming TC4 titanium alloy [J]. Chinese Journal of Lasers. 2014, 41(11): 1103010.
李静, 林鑫, 钱远宏, 等. 激光立体成形TC4钛合金组织和力学性能研究 [J]. 中国激光. 2014, 41(11): 1103010.

【6】Zhang F Y, Chen J, Tan H, et al. Effects of rare earth Nd on microstructure and mechanical properties of laser rapid formed TC4 titanium alloy [J]. Rare Metal Materials and Engineering. 2007, 36(8): 1420-1424.
张凤英, 陈静, 谭华, 等. 稀土钕对激光快速成形TC4合金组织及性能的影响 [J]. 稀有金属材料与工程. 2007, 36(8): 1420-1424.

【7】Huang L G, Gao Z Y, Fu D J. Research progress of the effects of trace boron on microstructure of titanium alloys [J]. Materials Review. 2015, 29(21): 92-97.
黄立国, 高志玉, 付大军. 少量硼对钛合金组织影响的研究进展 [J]. 材料导报. 2015, 29(21): 92-97.

【8】Bao S J. Effect of boron addition on microstructure and mechanical properties of as-cast TC4 [J]. Titanium Industry Progress. 2012, 29(4): 20-22.
包淑娟. 添加微量B元素对铸造TC4钛合金显微组织和力学性能的影响 [J]. 钛工业进展. 2012, 29(4): 20-22.

【9】Greer A L, Cooper P S, Meredith M W, et al. Grain refinement of aluminium alloys by inoculation [J]. Advanced Engineering Materials. 2003, 5(12): 81-91.

【10】Liang C Y, Zhang A F, Li L J, et al. Boron refinement of TC4 grains by induction heating assisted laser cladding deposition [J]. Chinese Journal of Lasers. 2018, 45(7): 0702001.
梁朝阳, 张安峰, 李丽君, 等. 感应加热辅助变质剂硼细化激光熔覆沉积TC4晶粒的研究 [J]. 中国激光. 2018, 45(7): 0702001.

【11】Tamirisakandala S, Mirac D B. Microstructure engineering of titanium alloys via small boron additions [J]. International Journal of Advances in Engineering Sciences and Applied Mathematics. 2010, 2(4): 168-180.

【12】Inkson B J, Boothroyd C B, Humphreys C J. Boron segregation in a (Fe, V, B) TiAl based alloy [J]. Le Journal De Physique IV. 1993, 3(C7): 397-402.

【13】Cheng T. The mechanism of grain refinement in TiAl alloys by boron addition: an alternative hypothesis [J]. Intermetallics. 2000, 8(1): 29-37.

【14】Tian Y L, Kraft R W. Mechanisms of pearlite spheroidization [J]. Metallurgical Transactions A. 1987, 18(8): 1403-1414.

【15】Semiatin S, Seetharaman V, Weiss I. Flow behavior and globularization kinetics during hot working of Ti-6Al-4V with a colony alpha microstructure [J]. Materials Science and Engineering: A. 1999, 263(2): 257-271.

【16】Stefansson N, Semiatin S L. Mechanisms of globularization of Ti-6Al-4V during static heat treatment [J]. Metallurgical and Materials Transactions A. 2003, 34(3): 691-698.

【17】Xiao Z N, Liu T T, Liao W H, et al. Microstructure and mechanical properties of TC4 titanium alloy formed by selective laser melting after heat treatment [J]. Chinese Journal of Lasers. 2017, 44(9): 0902001.
肖振楠, 刘婷婷, 廖文和, 等. 激光选区熔化成形TC4钛合金热处理后微观组织和力学性能 [J]. 中国激光. 2017, 44(9): 0902001.

引用该论文

Qi Zhenjia,Zhang Xiaoxing,Wang Yuyue,Huo Hao,Wang Hong,Zhang Jinzhi,Zhang Anfeng. Effect of B on Microstructure and Tensile Properties of Laser Additive Manufactured TC4 Alloy[J]. Chinese Journal of Lasers, 2020, 47(6): 0602002

齐振佳,张晓星,王豫跃,霍浩,王宏,张金智,张安峰. 硼对激光增材制造TC4微观组织及力学性能的影响[J]. 中国激光, 2020, 47(6): 0602002

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