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

被引：10

作者：

Qi Zhenjia ^{[1
]}

Zhang Xiaoxing ^{[1
]}

Wang Yuyue ^{[1
]}

Huo Hao ^{[2
]}

Wang Hong ^{[2
]}

Zhang Jinzhi ^{[2
]}

Zhang Anfeng ^{[2
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 71004, Shaanxi, Peoples R China

[2] Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Shaanxi, Peoples R China

来源：

CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG | 2020年 / 47卷 / 06期

关键词：

laser technique; laser additive manufacturing; grain refinement titanium alloy; mechanical properties; GRAIN-REFINEMENT; TI-6AL-4V; GLOBULARIZATION; MECHANISMS; BEHAVIOR;

D O I：

10.3788/CJL202047.0602002

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this study, B powders of different contents arc 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-beta 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-beta crystals to equiaxed crystals and result in a great reduction of the size of a 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.

引用

页数：7

共 17 条

[1]

Bao Shujuan, 2012, TITANIUM IND PROGR, V29, P20

[2] Anisotropic tensile behavior of Ti-6Al-4V components fabricated with directed energy deposition additive manufacturing [J].

Carroll, Beth E. ;

Palmer, Todd A. ;

Beese, Allison M. .

ACTA MATERIALIA, 2015, 87 :309-320

[3] The mechanism of grain refinement in TiAl alloys by boron addition - an alternative hypothesis [J].

Cheng, TT .

INTERMETALLICS, 2000, 8 (01) :29-37

[4]

Donoghue J, 2015, 144 ANN M EXH, P437

[5] Grain refinement of aluminium alloys by inoculation [J].

Greer, AL ;

Cooper, PS ;

Meredith, MW ;

Schneider, W ;

Schumacher, P ;

Spittle, JA ;

Tronche, A .

ADVANCED ENGINEERING MATERIALS, 2003, 5 (1-2) :81-91

[6]

[黄立国 Huang Liguo], 2015, [材料导报, Materials Review], V29, P92

[7]

Huang Q, 2017, MED PHYS, V44

[8]

Huang WC, 2007, 2007 INTERNATIONAL CONFERENCE ON MICROELECTRONICS, P126

[9] BORON SEGREGATION IN A (FE, V, B) TIAL BASED ALLOY [J].

INKSON, BJ ;

BOOTHROYD, CB ;

HUMPHREYS, CJ .

JOURNAL DE PHYSIQUE IV, 1993, 3 (C7) :397-402

[10]

Li J., 2014, Chin. J. Lasers, V41, DOI [10.3788/CJL201441.1103010, DOI 10.3788/CJL201441.1103010]

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