Characterization of intermetallic phase in as-cast Si-doped Co-Cr-Mo alloys

被引：1

作者：

Tunthawiroon, P. ^{[1
]}

Chiba, A. ^{[2
]}

机构：

[1] King Mongkuts Inst Technol Ladkrabang, Dept Ind Engn, Fac Engn, Bangkok 10520, Thailand

[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

来源：

10TH INTERNATIONAL CONFERENCE ON MECHATRONICS AND MANUFACTURING (ICMM 2019) | 2019年 / 635卷

关键词：

MECHANICAL-PROPERTIES; COCRMO ALLOYS; WEAR BEHAVIOR; SIGMA-PHASE; MICROSTRUCTURE;

D O I：

10.1088/1757-899X/635/1/012007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This research aims to investigate the effects of Si concentrations on the microstructure and formation of the intermetallic phase of Co-Cr-Mo-xSi alloys. The Si concentration (x) was varied between 0.1, 0.5, 1.0, 3.0 and 5.0 wt%. The microstructure and intermetallic phase of the solution heat-treated Co-Cr-Mo alloys were characterized using SEM-EDX, XRD and TEM. The microstructure analysis revealed that Si concentration played a role in the evolution of intermetallic phase precipitating in Co-Cr-Mo alloys. Two types of intermetallic phased were found in the Si-doped Co-Cr-Mo alloys. The sigma phase was identified in the alloys containing Si between 0.1-1.0 wt% while the increase in Si (3.0-5.0Si) contributed to the formation of the. phase. The calculated lattice parameters of the intermetallic phase precipitated in the 3.0Si and 5.0Si alloys correlated well with those of Co5Cr3Si2 phase.

引用

页数：6

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