Wetting kinetics and microstructure analysis of bni2 filler metal over selective laser melted ti-6al-4v substrate

Liu，Jiankun1; Liu，Guanpeng1; Ouyang，Hua2; Li，Yulong1; Yan，Ming3; Pecht，Michael4

2020-10-02

10.3390/ma13204666

Materials   影响因子和分区

1996-1944

The wetting kinetics of nickel-based filler metal (BNi2) over selective laser-melted Ti-6Al-4V (SLMed TC4) titanium alloy in a protective argon atmosphere is experimentally investigated using a real-time in situ hot stage equipped with an optical microscope. The spreading processes at different temperatures are similar, and the overall wetting/spreading process can be roughly divided into three stages: (i) an initial stage, (ii) a rapid spreading stage, and (iii) an asymptotic stage. Moreover, the wetting kinetics of the BNi2/SLMed TC4 system can be expressed by empirical power exponential function R~t with n = ~1. In the process of spreading, Ti-based solid solution (Ti(ss)) and intermetallic compound (TiNi and TiB) were formed at the interface within the reaction domain, and the phase transition of α’ martensitic to α-Ti and β-Ti also took place. The influence of elevated temperature on the spreading and wetting kinetics of the BNi2/SLMed TC4 system was studied, and the results show that the increase of temperature has a slightly promoting effect on the spreading, but a limited impact on the value of n. In addition, the spreading and wetting kinetics of BNi2/SLMed TC4 system are similar to those of BNi2 on conventional forged TC4 substrate.

BNi2 In situ observation Selective laser melting SLMed TC4 Wetting kinetics

SCI ; EI

英语

其他

National Natural Science Foundation of China[51665038][52065043] ; Jiangxi Science Fund for Distinguished Young Scholars[2018ACB21015] ; Academic and Technical Leaders Founding Project of Major Disciplines of Jiangxi Province[20182BCB22001] ; China Scholarship Council[201806825086]

Materials Science

Materials Science, Multidisciplinary

WOS:000585693000001

MDPI

20204409417850

Exponential functions ; Kinetics ; Vanadium alloys ; Fillers ; Ternary alloys ; Argon lasers ; Wetting ; Binary alloys ; Aluminum alloys

Aluminum Alloys:541.2 ; Titanium and Alloys:542.3 ; Vanadium and Alloys:543.6 ; Fluid Flow, General:631.1 ; Lasers, General:744.1 ; Mathematics:921 ; Classical Physics; Quantum Theory; Relativity:931

2-s2.0-85093956404

Scopus

1.Key Lab for Robot & Welding Automation of Jiangxi Province,Mechanical & Electrical Engineering School,Nanchang University,Nanchang,330031,China
2.The Engineering Training Center of Nanchang University,Mechanical & Electrical Engineering School,Nanchang University,Nanchang,330031,China
3.Department of Materials Science and Engineering,and Shenzhen Key Laboratory for Additive Manufacturing of High-Performance Materials,Southern University of Science and Technology,Shenzhen,518055,China
4.Center for Advanced Life Cycle Engineering (CALCE),University of Maryland,College Park,20742,United States

Liu，Jiankun,Liu，Guanpeng,Ouyang，Hua,et al. Wetting kinetics and microstructure analysis of bni2 filler metal over selective laser melted ti-6al-4v substrate[J]. Materials,2020,13(20):1-16.

Liu，Jiankun,Liu，Guanpeng,Ouyang，Hua,Li，Yulong,Yan，Ming,&Pecht，Michael.(2020).Wetting kinetics and microstructure analysis of bni2 filler metal over selective laser melted ti-6al-4v substrate.Materials,13(20),1-16.

Liu，Jiankun,et al."Wetting kinetics and microstructure analysis of bni2 filler metal over selective laser melted ti-6al-4v substrate".Materials 13.20(2020):1-16.