Acoustic properties of Ni3Si intermetallic materials

Shih Jeh Wu, Shian Ching Jason Jang, Chen Ming Kuo, Dong Yih Lin, Chen Ching Ting

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

Intermetallic compound such as Ni3Si intermetallic is a popular structural material in aerospace engines and acidulous environment due to its good mechanical integrity and acid resistance at elevated temperatures. The mechanical properties were investigated by ultrasonic method non-invasively from different forming processes at different temperatures. The Young's and shear moduli can be calculated easily from their relationship with longitudinal and shear acoustic speeds. Experimental data also showed the ultrasonic attenuation is quite different from that of ordinary metals or alloys. The much stronger attenuation may be related to the special L12 structure of Ni 3Si and indicate the microstructure change at different compounds.

Original languageEnglish
Pages145-148
Number of pages4
StatePublished - 2005
Event2005 TMS Annual Meeting - San Francisco, CA, United States
Duration: 13 Feb 200517 Feb 2005

Conference

Conference2005 TMS Annual Meeting
Country/TerritoryUnited States
CitySan Francisco, CA
Period13/02/0517/02/05

Keywords

  • NiSi intermetallic
  • Ultrasonic attenuation
  • Ultrasonic speed

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