Constant Stress Creep and Apparent Activation Energy Analysis of a Ni-Base Superalloy between 1023 and 1123 K

• Marzocca A. J.

  Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Dto. de Física, Ciudad Universitaria

• Picasso A. C.

  Universidad Nacional del Centro de la Provincia de Buenos Aires, Facultad de Ciencias Exactas, IFIMAT

Bibliographic Information

Other Title

• Constant Stress Creep and Apparent Acti

Abstract

New steady state creep data of Inconel 738 lc at 1023, 1073 and 1123 K at stresses between 250 and 580 MPa are reported. At each temperature analyzed, two regions of different slope in the logσ vs log\dotε diagram were obtained related to different deformation mechanisms. The data were interpreted in terms of the Dorn’s relationship and the Brown and Ashby’s approach. Apparent activation energy were also measured and analyzed considering the variation with temperature of all the parameters of the Dorn’s equation. This kind of approach could explain the high values of apparent activation energies obtained in precipitation hardened alloys.

Journal

• Materials Transactions, JIM

  Materials Transactions, JIM 37 (11), 1684-1689, 1996

  The Japan Institute of Metals

Keywords

• Inconel 738 lc
• precipitation hardened alloy
• steady state creep
• apparent activation energy
• Brown and Ashby’s relationship

Details

• CRID: 1390282679225035520
• NII Article ID: 130003556606
• NII Article ID: 10002450992
• NII Book ID: AA10699969
• DOI: 10.2320/matertrans1989.37.1684
• COI: 1:CAS:528:DyaK2sXntFKnuw%3D%3D
• ISSN: 2432471X
• ISSN: 09161821
• NDL BIB ID: 4090714
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4090714
• Web Site: https://www.jstage.jst.go.jp/article/matertrans1989/37/11/37_11_1684/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed