| Sung Hwan Hong,Jeong Tae Kim,Jin Man Park,Gian Song,Wei-Min Wang,Ki Buem Kim.[J].自然科学进展英文版,2018,28(6):704-710 |
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| Mechanical, deformation and fracture behaviors of bulk metallic glasscomposites reinforced by spherical B2 particles |
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| DOI： |
| 中文关键词: |
| 英文关键词:Bulk metallic glass Composite
Mechanical properties
Martensitic transformation
Fracture behavior |
| 基金项目: |
| Author Name | Affiliation | | Sung Hwan Hong | Department of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 05006, Republic of Korea | | Jeong Tae Kim | Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, A-8700 Leoben, Austria | | Jin Man Park | Global Technology Center (GTC), Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do 443-742, Republic of Korea | | Gian Song | Division of Advanced Materials Engineering, Kongju National University, Cheonan-si , Chungnam 31080, Republic of Korea | | Wei-Min Wang | Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministy of Education, Shandong University, Jinan 250061, China | | Ki Buem Kim | Department of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 05006, Republic of Korea |
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| 中文摘要: |
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| 英文摘要: |
| Ti45Cu40Ni7Zr5Sn2.5Si0.5 alloys were prepared under various cooling rate conditions during solidification. The
alloys exhibited different volume fractions of B2 particles with 0 ~ 40 vol% in an amorphous matrix. Monolithic
bulk metallic glass of 1mm diameter showed no macroscopic plasticity and exhibited the typical vein patterns in
a maximum shear stress plane on the fracture surface. However, a bulk metallic glass composite containing the
B2 particles revealed obvious plasticity (~ 5.6%) with a remarkable work-hardening behavior that resulted from
a stress-induced martensitic transformation of the B2 particles. Moreover, the composite displayed the complicated
fracture morphologies containing of three types of fracture features. Through detailed investigations on
the microstructural evolution, mechanical, deformation and fracture characteristics, the influence of B2 particle
on overall behavior of the TiCu-based bulk metallic glass composites was elucidated. |
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