Influences of Doping Methods on Microstructure and Fracture Toughness of Mo-La Alloys-Reference-Cited by-同舟云学术

Influences of Doping Methods on Microstructure and Fracture Toughness of Mo-La Alloys

Published:2007-01 Issue: Volume:534-536 Page:1265-1268
ISSN:1662-9752
Container-title:Materials Science Forum
language:
Short-container-title:MSF

Author:

Wang Lin¹,Sun Yuan Jun¹,Luo Jian Hai¹,Zhu Yon Gan¹,Niu Ping Wen¹

Affiliation:

1. Jinduicheng Molybdenum Group Co., Ldt.

Abstract

Lanthanum oxide was introduced to molybdenum powder by liquid-liquid doping and liquid-solid doping respectively. Mo alloys were prepared by powder metallurgy technology. The size distribution and feature of dopant particles and the fractographs of Mo alloys were investigated by TEM and SEM respectively. The results indicated that liquid-liquid doping method is favorable for refining and dispersing La2O3 particles uniformly in matrix. Fracture toughness of Mo alloys prepared by liquid-liquid doping showed better results than that of liquid-solid doping. Furthermore, the influences of the size distribution of La2O3 on properties of Mo alloys was discussed by dislocation pile-up theory.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

https://www.scientific.net/MSF.534-536.1265.pdf

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