Effect of niobium particulate addition on the microstructure and mechanical properties of pure magnesium

被引：30

作者：

Shanthi, M. ^{[1
]}

Jayaramanavar, P. ^{[2
]}

Vyas, V. ^{[3
]}

Seenivasan, D. V. S. ^{[1
]}

Gupta, M. ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Mech Engn, Singapore 119260, Singapore

[2] Malaviya Natl Inst Technol, Dept Met & Mat Engn, Jaipur 303017, Rajasthan, India

[3] Natl Inst Technol, Dept Met & Mat Engn, Durgapur 713209, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2012年 / 513卷

关键词：

Metal matrix composites; Microstructure; Mechanical properties; Scanning electron microscopy; X-ray diffraction; COMPOSITE; BEHAVIOR; ALLOY; REINFORCEMENT; TEMPERATURE; STRENGTH; MG; EXTRUSION; TITANIUM; CA;

D O I：

10.1016/j.jallcom.2011.10.019

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：

Magnesium based composites containing 5-15 wt% niobium particulates were synthesized using disintegrated melt deposition technique. Microstructural characterization revealed reasonably uniform distribution of niobium particulates in the matrix with no intermetallics formation, reasonable grain refinement and minimal porosity. Mechanical characterization under tensile loading revealed simultaneous improvement in hardness, 0.2% yield strength and ultimate tensile strength up to 10 wt% Nb, while ductility was compromised beyond 5 wt% niobium particulate addition to pure magnesium. The optimal composition with good combination of strength and ductility is observed at Mg/5 wt% Nb composite while the best improvement in strength and hardness among the composites was observed only for Mg-10 wt% Nb composite. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：202 / 207

页数：6

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