Published January 2019 | Version v1
Journal article Metadata-only

Discontinuous core-shell structured Ti-25Nb-3Mo-3Zr-2Sn alloy with high strength and good plasticity

Creators

  • 1. Northwest Institute for Nonferrous Metal Research, Xi'an, 710016 (China)
  • 2. Xi'an Rare Metal Materials institute Co., Ltd, Xi'an (China)
  • 3. College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014 (China)
  • 4. School of Engineering, Edith Cowan University, 270 Joondalup Drive, Joondalup, Perth, WA 6027 (Australia)

Description

Highlights: • A discontinuous core-shell structured β Ti alloy was fabricated. • α precipitates are located near boundaries forming a discontinuous shell. • The precipitation of α phases are induced by diffusion of oxygen • A good combination of mechanical performance is achieved -- Abstract: Bulk dense Ti-25Nb-3Mo-3Zr-2Sn (TLM) alloy with a discontinuous core-shell structure was successfully synthesized by spark plasma sintering (SPS) of the oxidized TLM powder. A discontinuous core-shell structure is formed, which is mainly attributed to the participation of α phases in β matrix near boundaries induced by diffusion of oxygen. The core-shell TLM compact exhibits a yield strength and fracture plasticity approaching 1.36 GPa and 34%, respectively.

Additional details

Identifiers

DOI
10.1016/j.matchar.2018.10.021;
PII
S1044580318322897;

Publishing Information

Journal Title
Materials Characterization
Journal Volume
147
Journal Page Range
p. 127-130
ISSN
1044-5803
CODEN
MACHEX

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
55031160
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
DIFFUSION; FRACTURES; MATRICES; OXYGEN; PERFORMANCE; PLASMA; PLASTICITY; POWDERS; PRECIPITATION; SINTERING; TITANIUM ALLOYS; YIELD STRENGTH
Descriptors DEC
ALLOYS; ELEMENTS; FABRICATION; FAILURES; MECHANICAL PROPERTIES; NONMETALS; SEPARATION PROCESSES; TRANSITION ELEMENT ALLOYS

Optional Information

Copyright
Copyright (c) 2018 Elsevier Inc. All rights reserved.