Structural evolution during crystallization in phase separated Ti-Y-Al-Co metallic glass

Byung Joo Park; Sung Woo Sohn; Won Tae Kim; Do Hyang Kim

doi:10.1016/j.jallcom.2008.08.136

Structural evolution during crystallization in phase separated Ti-Y-Al-Co metallic glass

Byung Joo Park, Sung Woo Sohn, Won Tae Kim, Do Hyang Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Structural evolution during heat treatment of melt spun Ti₃₆Y₂₀Al₂₄Co₂₀ alloy was studied using differential scanning calorimetry, X-ray diffractometry and transmission electron microscopy. The as-melt spun Ti₃₆Y₂₀Al₂₄Co₂₀ specimen showed a hierarchical complex microstructure consisting of Ti-rich and Y-rich amorphous phases and crystallized with two-step process. Crystallization in the phase separated two phase mixture took place in a confined mode due to different thermal stability and complex microstructure, resulting in various nano-scaled microstructural formation ranging from fine distribution of crystalline particles in amorphous matrix to fine distribution of amorphous particles in crystalline matrix.

Original language	English
Pages (from-to)	260-264
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	483
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2008.08.136
Publication status	Published - 2009 Aug 26

Bibliographical note

Funding Information:
We would like to acknowledge support from the Global Research Laboratory Program of Korea Ministry of Science and Technology. Two of the authors (B.J. Park and S.W. Sohn) are grateful to the support from Second Stage of Brain Korea 21 Project in 2007.

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2008.08.136

Cite this

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title = "Structural evolution during crystallization in phase separated Ti-Y-Al-Co metallic glass",

abstract = "Structural evolution during heat treatment of melt spun Ti36Y20Al24Co20 alloy was studied using differential scanning calorimetry, X-ray diffractometry and transmission electron microscopy. The as-melt spun Ti36Y20Al24Co20 specimen showed a hierarchical complex microstructure consisting of Ti-rich and Y-rich amorphous phases and crystallized with two-step process. Crystallization in the phase separated two phase mixture took place in a confined mode due to different thermal stability and complex microstructure, resulting in various nano-scaled microstructural formation ranging from fine distribution of crystalline particles in amorphous matrix to fine distribution of amorphous particles in crystalline matrix.",

author = "Park, {Byung Joo} and Sohn, {Sung Woo} and Kim, {Won Tae} and Kim, {Do Hyang}",

note = "Funding Information: We would like to acknowledge support from the Global Research Laboratory Program of Korea Ministry of Science and Technology. Two of the authors (B.J. Park and S.W. Sohn) are grateful to the support from Second Stage of Brain Korea 21 Project in 2007.",

year = "2009",

month = aug,

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doi = "10.1016/j.jallcom.2008.08.136",

language = "English",

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AU - Park, Byung Joo

AU - Sohn, Sung Woo

AU - Kim, Won Tae

AU - Kim, Do Hyang

N1 - Funding Information: We would like to acknowledge support from the Global Research Laboratory Program of Korea Ministry of Science and Technology. Two of the authors (B.J. Park and S.W. Sohn) are grateful to the support from Second Stage of Brain Korea 21 Project in 2007.

PY - 2009/8/26

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AB - Structural evolution during heat treatment of melt spun Ti36Y20Al24Co20 alloy was studied using differential scanning calorimetry, X-ray diffractometry and transmission electron microscopy. The as-melt spun Ti36Y20Al24Co20 specimen showed a hierarchical complex microstructure consisting of Ti-rich and Y-rich amorphous phases and crystallized with two-step process. Crystallization in the phase separated two phase mixture took place in a confined mode due to different thermal stability and complex microstructure, resulting in various nano-scaled microstructural formation ranging from fine distribution of crystalline particles in amorphous matrix to fine distribution of amorphous particles in crystalline matrix.

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Structural evolution during crystallization in phase separated Ti-Y-Al-Co metallic glass

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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