Effect of ball milling on structure and thermal stability of Al 84Gd6Ni7Co3 glassy powders

Z. Wang; K. G. Prashanth; S. Scudino; J. He; W. W. Zhang; Y. Y. Li; M. Stoica; G. Vaughan; D. J. Sordelet; J. Eckert

doi:10.1016/j.intermet.2013.11.005

Effect of ball milling on structure and thermal stability of Al ₈₄Gd₆Ni₇Co₃ glassy powders

Z. Wang, K. G. Prashanth, S. Scudino, J. He, W. W. Zhang, Y. Y. Li, M. Stoica, G. Vaughan, D. J. Sordelet, J. Eckert

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

24 Citations (Scopus)

Abstract

The influence of ball milling on microstructure and thermal stability of the gas-atomized Al₈₄Gd₆Ni₇Co₃ glassy powder has been investigated as a function of the milling time. The results show that the traces of crystalline phases present in the as-atomized powder decrease gradually with increasing the milling time. The thermal stability of the fcc-Al primary phase increases while the thermal stability of the intermetallic phases decreases with increasing milling. Moreover, significant improvement in hardness occurs after milling, which is attributed to the amorphization of the residual crystalline phases present in the as-atomized powder. These results demonstrate that milling is an effective way for amorphizing the residual crystalline present in the amorphous matrix and to control the thermal stability of the material.

Original language	English
Pages (from-to)	97-102
Number of pages	6
Journal	Intermetallics
Volume	46
DOIs	https://doi.org/10.1016/j.intermet.2013.11.005
Publication status	Published - 2014 Mar

Keywords

A. Intermetallics, miscellaneous
B. Thermal stability
C. Mechanical alloying and milling
F. Diffraction

ASJC Scopus subject areas

Chemistry(all)
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.intermet.2013.11.005

Cite this

@article{10f33aa6a2c8451087a27bab46db88f3,

title = "Effect of ball milling on structure and thermal stability of Al 84Gd6Ni7Co3 glassy powders",

abstract = "The influence of ball milling on microstructure and thermal stability of the gas-atomized Al84Gd6Ni7Co3 glassy powder has been investigated as a function of the milling time. The results show that the traces of crystalline phases present in the as-atomized powder decrease gradually with increasing the milling time. The thermal stability of the fcc-Al primary phase increases while the thermal stability of the intermetallic phases decreases with increasing milling. Moreover, significant improvement in hardness occurs after milling, which is attributed to the amorphization of the residual crystalline phases present in the as-atomized powder. These results demonstrate that milling is an effective way for amorphizing the residual crystalline present in the amorphous matrix and to control the thermal stability of the material.",

keywords = "A. Intermetallics, miscellaneous, B. Thermal stability, C. Mechanical alloying and milling, F. Diffraction",

author = "Z. Wang and Prashanth, {K. G.} and S. Scudino and J. He and Zhang, {W. W.} and Li, {Y. Y.} and M. Stoica and G. Vaughan and Sordelet, {D. J.} and J. Eckert",

note = "Funding Information: This work is supported by the Chinese Scholarship Council (CSC) , Natural Science Foundation of China (GD-NSFC) Foundation (U1034001). Specialized Research Fund for Doctoral Program of Higher Education (20120172110045) and the support of ESRF through the experiment HD 482 are gratefully acknowledged.",

year = "2014",

month = mar,

doi = "10.1016/j.intermet.2013.11.005",

language = "English",

volume = "46",

pages = "97--102",

journal = "Intermetallics",

issn = "0966-9795",

publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Effect of ball milling on structure and thermal stability of Al 84Gd6Ni7Co3 glassy powders

AU - Wang, Z.

AU - Prashanth, K. G.

AU - Scudino, S.

AU - He, J.

AU - Zhang, W. W.

AU - Li, Y. Y.

AU - Stoica, M.

AU - Vaughan, G.

AU - Sordelet, D. J.

AU - Eckert, J.

N1 - Funding Information: This work is supported by the Chinese Scholarship Council (CSC) , Natural Science Foundation of China (GD-NSFC) Foundation (U1034001). Specialized Research Fund for Doctoral Program of Higher Education (20120172110045) and the support of ESRF through the experiment HD 482 are gratefully acknowledged.

PY - 2014/3

Y1 - 2014/3

N2 - The influence of ball milling on microstructure and thermal stability of the gas-atomized Al84Gd6Ni7Co3 glassy powder has been investigated as a function of the milling time. The results show that the traces of crystalline phases present in the as-atomized powder decrease gradually with increasing the milling time. The thermal stability of the fcc-Al primary phase increases while the thermal stability of the intermetallic phases decreases with increasing milling. Moreover, significant improvement in hardness occurs after milling, which is attributed to the amorphization of the residual crystalline phases present in the as-atomized powder. These results demonstrate that milling is an effective way for amorphizing the residual crystalline present in the amorphous matrix and to control the thermal stability of the material.

AB - The influence of ball milling on microstructure and thermal stability of the gas-atomized Al84Gd6Ni7Co3 glassy powder has been investigated as a function of the milling time. The results show that the traces of crystalline phases present in the as-atomized powder decrease gradually with increasing the milling time. The thermal stability of the fcc-Al primary phase increases while the thermal stability of the intermetallic phases decreases with increasing milling. Moreover, significant improvement in hardness occurs after milling, which is attributed to the amorphization of the residual crystalline phases present in the as-atomized powder. These results demonstrate that milling is an effective way for amorphizing the residual crystalline present in the amorphous matrix and to control the thermal stability of the material.

KW - A. Intermetallics, miscellaneous

KW - B. Thermal stability

KW - C. Mechanical alloying and milling

KW - F. Diffraction

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