Understanding of martensitic (TiCu)-based bulk metallic glasses through deformation behavior of a binary Ti{sub 50}Cu{sub 50} martensitic alloy

Journal Article · Mon Jun 16 00:00:00 EDT 2008 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2951610· OSTI ID:21120826

Kim, K B; Song, K A ^[1]; Zhang, X F; Yi, S ^[2]

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1. Department of Advanced Materials Engineering, Sejong University, 98 Gunja-dong, Gwangjin-gu, 143-747 Seoul (Korea, Republic of)
2. Department of Materials Science and Metallurgy, Kyungpook National University, 1370 Sankyuk-dong, Buk-gu, Daegu 702-701 (Korea, Republic of)

A binary Ti{sub 50}Cu{sub 50} martensitic alloy having similar atomic clusters to (TiCu)-based martensitic bulk metallic glasses presents a large plastic strain of 18.04% with high fracture strength of 1705 MPa. Detailed microstructural investigations point out that martensite embedded in {gamma}-TiCu matrix is effective to dissipate localization of the shear stress thus leading to rotational propagation, interaction, and multiplication of the shear bands. Furthermore, the propagation of microcracks formed by local stress transition during deformation is hindered by the martensite.

• OSTI ID: 21120826
• Journal Information: Applied Physics Letters, Vol. 92, Issue 24; Other Information: DOI: 10.1063/1.2951610; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ATOMIC CLUSTERS
CHEMICAL ANALYSIS
COPPER ALLOYS
CRACKS
DEFORMATION
FRACTURE MECHANICS
FRACTURE PROPERTIES
MARTENSITE
METALLIC GLASSES
MICROSTRUCTURE
OPTICAL MICROSCOPY
PLASTICITY
PRESSURE RANGE GIGA PA
SCANNING ELECTRON MICROSCOPY
SHEAR PROPERTIES
STRESSES
TITANIUM ALLOYS
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION