Skip to main navigation Skip to search Skip to main content

Alloy and powder preparation of high niobium containing tial based alloys

  • Hong Jie Zeng*
  • , Lai Qi Zhang
  • , Jun Pin Lin
  • , Shao Jie Zhang
  • , Guo Liang Chen
  • *Corresponding author for this work
  • University of Science and Technology Beijing

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

High Nb containing TiAl based alloys exhibit excellent corrosion resistance to molten zinc. They are expected to serve as the potential coating materials of corrosion resistance to molten zinc. Four TiAl-Nb alloys of good oxidation resistance and their powders were prepared by arc-melting and ball milling, respectively. The Microstructure, Hardness, Coefficient of thermal expansion, and grain size distribution of four as-cast TiAl-Nb alloys and their powders were investigated. In addition, EPMA analysis was employed to further examine the existential state of element Y in as-cast TiAl-Nb alloys. It was found that element Y existed in the form of YAl2 phase in the grain boundaries and triple junctions. Higher content of Al in TiAl-Nb alloy results in bigger Coefficient of thermal expansion. Lamellar microstructures and fine grains exert a positive influence on hardness. Powders prepared by ball milling displayed angular and irregular morphology.

Original languageEnglish
Title of host publicationEmerging Systems for Materials, Mechanics and Manufacturing
Pages150-155
Number of pages6
DOIs
StatePublished - 2012
Externally publishedYes
Event2011 International Conference on Mechanics and Manufacturing Systems, ICMMS 2011 - Ningbo, China
Duration: 13 Nov 201114 Nov 2011

Publication series

NameApplied Mechanics and Materials
Volume109
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2011 International Conference on Mechanics and Manufacturing Systems, ICMMS 2011
Country/TerritoryChina
CityNingbo
Period13/11/1114/11/11

Keywords

  • Alloy powder
  • Ball milling
  • Coefficient of thermal expansion
  • Hardness
  • High Nb containing TiAl based alloy

Fingerprint

Dive into the research topics of 'Alloy and powder preparation of high niobium containing tial based alloys'. Together they form a unique fingerprint.

Cite this