Preparation of Cu-Cr alloy powder by mechanical alloying

被引：50

作者：

Zhao, Qing ^{[1
,3
]}

Shao, Zhongbao ^{[2
]}

Liu, Chengjun ^{[1
]}

Jiang, Maofa ^{[1
]}

Li, Xuetian ^{[2
]}

Zevenhoven, Ron ^{[3
]}

Saxen, Henrik ^{[3
]}

机构：

[1] Northeastern Univ, Minist Educ, Key Lab Ecol Met Multimetall Ores, Shenyang 110819, Peoples R China

[2] Northeastern Univ, Coll Sci, Shenyang 110819, Peoples R China

[3] Abo Akad Univ, Thermal & Flow Engn Lab, SF-20500 Turku, Finland

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 607卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Mechanical alloying; Powder; Milling; Cu-Cr; Alloy; SOLID SOLUBILITY; PHASE-SEPARATION; MICROSTRUCTURE; PRECIPITATION;

D O I：

10.1016/j.jallcom.2014.04.054

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：

A study of Cu-Cr alloy powder preparation by a newly developed mechanical alloying (MA) approach was conducted using a modified mill. Results showed that the preparation temperature was much lower in the tests employing modified mill than with traditional equipment, and that no distinct differences could be found in the products prepared by the vibratory and planetary mills. Active carbon powder was found to exhibit an excellent reducing capacity for metallic oxides, while graphite powder was found inappropriate in this process. Based on the experimental results, purified Cu-Cr alloy nano-scale grain can prepared by mechanical alloying in the modified mill at 325 degrees C for 3 h with a ball-to-powder mass ratio of 15:1. A crystal agglomeration phenomenon was also found in the final alloy powder, leading to an increase in particle size. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：118 / 124

页数：7

共 26 条

[1] A thermodynamic approach to energy storage on mechanical alloying of the Cu-Cr system [J].

Aguilar, C. ;

Martinez, V. de P. ;

Palacios, J. M. ;

Ordonez, S. ;

Pavez, O. .

SCRIPTA MATERIALIA, 2007, 57 (03) :213-216

[2] Thermodynamic analysis of the change of solid solubility in a binary system processed by mechanical alloying [J].

Aguilar, C. ;

Martinez, V. ;

Navea, L. ;

Pavez, O. ;

Santander, M. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 471 (1-2) :336-340

[3] Solid solubility extension in Cu-V and Cu-Cr alloys produced by chill block melt-spinning [J].

Bell, A ;

Davies, HA .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1997, 226 :1039-1041

[4] Surface precipitation of chromium in rapidly solidified Cu-Cr alloys [J].

Bizjak, Milan ;

Karpe, Balz ;

Jaksa, Gregor ;

Kovac, Janez .

APPLIED SURFACE SCIENCE, 2013, 277 :83-87

[5] On the estimation of average crystallite size of zeolites from the Scherrer equation: A critical evaluation of its application to zeolites with one-dimensional pore systems [J].

Burton, Allen W. ;

Ong, Kenneth ;

Rea, Thomas ;

Chan, Ignatius Y. .

MICROPOROUS AND MESOPOROUS MATERIALS, 2009, 117 (1-2) :75-90

[6] Phase separation in undercooled Cu-Cr melts [J].

Gao, J. ;

Wang, Y. P. ;

Zhou, Z. M. ;

Kolbe, M. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 449 :654-657

[7] Heat treatment of CuCrZr cooling tubes for JT-60SA monoblock-type divertor targets [J].

Higashijima, S. ;

Sakurai, S. ;

Sakasai, A. .

JOURNAL OF NUCLEAR MATERIALS, 2011, 417 (1-3) :912-915

[8] Crystallite size of mechanically alloyed Cu-Cr powder - A comparison between X-ray diffraction and atomic force microscopy techniques [J].

Lahiri, Indranil ;

Bhargava, Sanjeev .

MATERIALS CHARACTERIZATION, 2009, 60 (11) :1406-1410

[9] Compaction and sintering response of mechanically alloyed Cu-Cr powder [J].

Lahiri, Indranil ;

Bhargava, S. .

POWDER TECHNOLOGY, 2009, 189 (03) :433-438

[10] Effects of TiB2 on microstructure of nano-grained Cu-Cr-TiB2 composite powders prepared by mechanical alloying [J].

Li, Zili ;

Wang, Weimin ;

Wang, Ji Lin .

ADVANCED POWDER TECHNOLOGY, 2014, 25 (01) :415-422

← 1 2 3 →