Synthesis and characteristics of consolidated nanocrystalline two-phase Ag50Ni50 alloy by hot pressing

被引：11

作者：

Zhao, ZL ^{[1
]}

Zhao, Y ^{[1
]}

Niu, Y ^{[1
]}

Wang, CL ^{[1
]}

Wu, WT ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110015, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2000年 / 307卷

关键词：

Ag-Ni alloys; mechanical alloying; hot pressing; nanocrystalline; two-phase alloy;

D O I：

10.1016/S0925-8388(00)00820-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Silver and nickel are mutually only very slightly soluble and have a positive heat of mixing. Ag50Ni50 powder was prepared by mechanical alloying (MA) for 200 h and subsequent hot pressing (HP) at 620 degrees C under 60 MP3, XRD results indicated that ball milling produced a two-phase mixture of supersaturated, nanocrystalline Ag-rich (alpha-phase) and Ni-rich (beta-phase) solid solutions with grain sizes of 5 and 3 nm, respectively. The grain sizes increased to about 40 and 3-6 nm after hot pressing. The HP Ag50Ni50 had a density very close to the theoretical value. The HP alloy consisted of an interconnected network of the alpha-phase and islands of a two-nanophase mixture rich in the beta-phase. The tability of the microstructure of the alloy and the effects of mechanical alloying on the supersaturation of the two phases and on the formation of the Ag-rich network are also discussed. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：254 / 258

页数：5

共 20 条

[1] Synthesis of two-phase nanocrystalline Ag50Ni50 alloy by mechanical alloying and its microstructure
Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals, 2000, 10 (03): : 361 - 364
[2] Microstructure of bulk nanocrystalline Ag50Ni50 alloy prepared by hot pressing of mechanically alloyed powders
Institute of Metal Research, Chinese Academy of Science, Shenyang 110016, China
Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals, 2001, 11 (05): : 741 - 749
[3] Solid state synthesis of nanocrystalline and/or amorphous 50Ni-50Ti alloy
Gu, YW
Goh, CW
Goi, LS
Lim, CS
Jarfors, AEW
Tay, BY
Yong, MS
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 392 (1-2): : 222 - 228
[4] Solution combustion synthesis of nanocrystalline Fe-50%Ni alloy powder
Liu, Ye
Qin, Mingli
Zhang, Lin
Huang, Min
Li, Shuyang
Jia, Baorui
Zhang, Dezhi
Qu, Xuanhui
POWDER TECHNOLOGY, 2014, 267 : 68 - 73
[5] Study on nanocrystalline bulk Ag-50Ni alloy prepared by aqueous reducing method
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Zhu Ximing
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RARE METAL MATERIALS AND ENGINEERING, 2008, 37 (07) : 1221 - 1224
[6] Investigation of the characteristics of the nanocrystalline Ni3Al-based alloy fabricated by hot pressing and sintering
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Kamali, Ali Reza
JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 492 (1-2) : 196 - 200
[7] Effects of mechanical alloying on the characteristics of a nanocrystalline Ti-50 at.%Al during hot pressing consolidation
Farhang, Mohammad Reza
Kamali, Ali Reza
Nazarian-Samani, Masoud
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2010, 168 (1-3): : 136 - 141
[8] Microstructural properties of bulk nanocrystalline Ag–Ni alloy prepared by hot pressing of mechanically pre-alloyed powders
C.L. Wang
S.Z. Lin
Y. Niu
W.T. Wu
Z.L. Zhao
Applied Physics A, 2003, 76 : 157 - 163
[9] Microstructural properties of bulk nanocrystalline Ag-Ni alloy prepared by hot pressing of mechanically pre-alloyed powders
Wang, CL
Lin, SZ
Niu, Y
Wu, WT
Zhao, ZL
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2003, 76 (02): : 157 - 163
[10] Formation of nanocrystalline structure in two-phase titanium alloy by combination of thermohydrogen processing with hot working
Murzinova, MA
Salishchev, GA
Afonichev, DD
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2002, 27 (7-8) : 775 - 782

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