Thermodynamic analysis of Fe contamination in Cu-Mo alloys processed by mechanical alloying

被引：3

作者：

Aguilar, C. ^{[1
]}

Medina, A. ^{[2
]}

Hernandez, O. J. ^{[2
]}

Bejar, L. ^{[3
]}

Parra, C. ^{[4
]}

机构：

[1] Univ Tecn Federico Santa Maria, Dept Ingn Met & Mat, Av Espana 1680, Valparaiso 56322654228, Chile

[2] Univ Michoacana, Inst Invest Met & Mat, Morelia, Michoacan, Mexico

[3] Univ Michoacana, Fac Ingn Mecan, Morelia, Michoacan, Mexico

[4] Univ Tecn Federico Santa Maria, Dept Fis, Lab Nanobiomat, Valparaiso, Chile

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 2018年 / 98卷 / 08期

关键词：

Copper alloys; HRTEM; powder metallurgy; thermodynamics; SOLID-SOLUTION; FORMATION ENTHALPIES; PHASE; EXTENSION; BEHAVIOR; MODEL;

D O I：

10.1080/09500839.2018.1552029

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work aims to verify if Fe atoms coming from balls and jars enter into solid solution of Cu-Mo powders during mechanical alloying. The powders were milled and its structure and composition were characterised by scanning and transmission electron microscopy, and X-ray diffraction. Gibbs free of mixing values for Cu-Mo-Fe system were calculated using the Miedema's model and showed that Cu-rich corner exhibit smallest energy values (<10kJmol(-1)). The observed coherency relation Cu(111) || Mo(101) || Fe(101) confirmed formation of solid solution. Fe atoms have entered in solid solution with Cu and Mo and do not remain as particles of second phase.

引用

页码：341 / 349

页数：9

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