Paper Title:
The Investigation of Creep Behavior for NiAl-28Cr-5.5Mo-0.5Hf-0.02wt.%P Alloy at High Temperature
  Abstract

The Microstructure and creep behavior for NiAl-28Cr-5.5Mo-0.5Hf-0.02wt.%P alloy at high temperature have been investigated in this paper. The results reveal that the high temperature creep behavior of the NiAl-28Cr-5.5Mo-0.5Hf-0.02wt.%P alloy is characterized by transient primary creep and dominant steady-state creep as well as ternary creep behavior. The primary creep can be described by Garofalo equation and the steady-state creep can be depicted by Dorn equation. The creep mechanisms are viscous glide of dislocations at lower and middle testing temperatures and dislocation climb at higher temperature. No change of the microstructure for the testing alloy indicates that the creep fracture is controlled by the formation and propagation of cavities and cracks, and the creep fracture behavior obeys Monk man-Grant relationship.

  Info
Periodical
Chapter
I. Solid Materials
Edited by
Fei Hu and Beibei Wang
Pages
28-32
DOI
10.4028/www.scientific.net/AMR.279.28
Citation
G. Y. Zhang, D. W. Ye, J. L. Wang, Y. M. Chen, L. F. Liu, Y. J. Guo, "The Investigation of Creep Behavior for NiAl-28Cr-5.5Mo-0.5Hf-0.02wt.%P Alloy at High Temperature", Advanced Materials Research, Vol. 279, pp. 28-32, 2011
Online since
July 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: A.A. Kodentsov, M.J.H. van Dal, Csaba Cserháti, Lajos Daróczi, F.J.J. van Loo
73
Authors: Chang Liang Li, Hua Ding, Yong Qing Zhao, Lian Zhou
Abstract:Superplastic forming provides a good way for Ti alloys which are usually difficult to be deformed. Ti75 alloy with a nominal composition of...
2969
Authors: Zhi Guo Chen, Zi Qiao Zheng, Dong Feng Han
Abstract:The hot deformation behaviors and microstructure in Al-Cu-Li alloy containing small amount of Ag and Mg were investigated by transmission...
1925
Authors: Bao Hong Zhu, Bai Qing Xiong, Yon Gan Zhang, Udo Fritsching, Ji Shan Zhang, Feng Wang, Zhi Hui Li, Hong Wei Liu
Abstract:A high Zn content Al-Zn-Mg-Cu alloy was prepared by spray forming process and the precipitate behavior and microstructure of the extruded...
481
Authors: De Liang Zhang, Hong Bao Yu, Yuong Chen
Abstract:Bulk nanostructured (grain sizes in the range of 50-200nm) and ultrafine structured (grain sizes in the range of 100-500nm) -TiAl based...
149