Selective laser melting helps fabricate record-large bulk metallic glass: Experiments, simulation and demonstrative part

Wang，Liang1,2; Wang，Hao1; Liu，Yingkuo1; Fu，Zhongxue1; Peng，Taijiang1; Shen，Jun1; Zhou，Suyuan2; Yan，Ming2; Wang，Gang3; Dai，Yuhong4

2019-11-05

Bulk metallic glass Finite element simulation Selective laser melting Size limitation

English

Science and Technology Planning Project of Guangdong Province[2017B090911003];National Natural Science Foundation of China[51771123];Shenzhen Peacock Plan[KQJSCX20160226174209];Shenzhen Peacock Plan[KQJSCX20170327151307811];

Size limitation is one of the bottleneck issues to bulk metallic glasses (BMGs). Selective laser melting (SLM) uses localized, point-specific, high energy beam to manufacture. By applying SLM to an Fe-based BMG, a record-large, fully amorphous sample (Ø45 mm × 20 mm) has been produced into good mechanical properties. SLM process map is constructed and finite element simulation is employed for the study. The rapid cooling rate during SLM, a sufficiently short exposure time to high temperature, and the good thermal stability of the alloy are the key points to form such superlarge, quality BMG. As-printed, demonstrative part is present, and the implications of the results are addressed.

10.1016/j.jallcom.2019.151731

JOURNAL OF ALLOYS AND COMPOUNDS

808

0925-8388

SCI ; EI

Others

2-s2.0-85070387394

Scopus

WOS:000483694900061

20193307302259

Metallic glass ; Selective laser melting ; Thermodynamic stability ; Melting ; Finite element method

Metallurgy and Metallography:531 ; Thermodynamics:641.1 ; Reproduction, Copying:745.2 ; Chemical Operations:802.3 ; Glass:812.3 ; Numerical Methods:921.6

MATERIALS SCIENCE

1.Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering,College of Mechatronics and Control Engineering,Shenzhen University,Shenzhen,518060,China
2.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
3.Shanghai University,Laboratory for Microstructures,Institute of Materials,Shanghai,20044,China
4.Shenzhen Sunshine Laser & Electronics Technology Co,Shenzhen,518057,China

Wang，Liang,Wang，Hao,Liu，Yingkuo,et al. Selective laser melting helps fabricate record-large bulk metallic glass: Experiments, simulation and demonstrative part. 2019-11-05.