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

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