Microstructural study of tungsten influence on Co-Cr alloys

被引：56

作者：

Karaali, A ^{[1
]}

Mirouha, K

Hamamda, S

Guiraldenq, P

机构：

[1] Univ Mentouri, Fac Sci, Dept Phys, Lab Proprietes Thermodynam & Traitements Surfaces, Constantine, Algeria

[2] Ecole Cent Lyon, Dept STMS, F-69131 Ecully, France

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2005年 / 390卷 / 1-2期

关键词：

Co-Cr-W; dental alloys; TEM; sigma phase; fcc phase; stacking faults;

D O I：

10.1016/j.msea.2004.08.001

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Alloying elements, such as W, Mo, Mn,..., are of a great importance in the preoxidation of dental alloys and, consequently, on the ceramic/metal bond quality. This study deals with the effect of tungsten addition on the microstructural state of Co-Cr dental alloys, before the ceramisation process. These materials were prepared by unidirectional solidification. Their characterization has been carried out, using transmission electron microscopy (TEM) and X-ray diffraction. It shows that the addition of tungsten up to 8 wt.% induces structural transformations, which are believed to be linked to the added amount of tungsten. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：255 / 259

页数：5

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