Preliminary study of oxidation behavior of Mo-50Re alloy at different temperature using positron annihilation lifetime spectroscopy

Zhejie Zhu, Wei Yang, Jianjian Shi, Tongguang Zhai, Yichu Wu

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

1 Scopus citations

Abstract

The oxidized Mo-50Re alloys in air at 573 K and 873 K for various times were investigated by X-Ray diffraction and positron annihilation lifetime spectroscopy. The results indicated that main orthogonal phase MoO3 together with small amount of monoclinic phase Mo8O23 were formed on on the surface of the specimens, and the oxide film of specimens oxidized at 873 K were much thicker than that of specimens oxidized at 573 K. Meanwhile, when Mo-50Re specimens oxidized in air at 873K, the defect's size within interface layer of the specimens was larger, and the oxide film on the surface of the specimens contained much more defects. Faster oxidation process were observed occured at 873K, which was likely due to the formation of larger-size interfacial defects.

Original languageEnglish
Title of host publicationPositron Annihilation - ICPA-17
EditorsC.Q. He , Y.C. Wu , N. Qi , Z.Q. Chen
Pages134-137
Number of pages4
Volume373 DDF
DOIs
StatePublished - 2016
Event17th International Conference onPositron Annihilation, ICPA-17 - Wuhan, China
Duration: Sep 20 2016Sep 25 2016

Conference

Conference17th International Conference onPositron Annihilation, ICPA-17
Country/TerritoryChina
CityWuhan
Period9/20/169/25/16

Bibliographical note

Publisher Copyright:
© 2016 Trans Tech Publications, Switzerland.

Keywords

  • Mo-re alloy
  • Oxidation
  • Positron
  • X-Ray diffraction

ASJC Scopus subject areas

  • Radiation
  • General Materials Science
  • Condensed Matter Physics

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