Tensile Deformation of a Nickel-base Alloy at Elevated Temperatures

The results of tensile testing involving Waspaloy indicate that the failure strain was gradually reduced at temperatures ranging between ambient and 300 °C. Further, serrations were observed in the engineering stress versus strain diagrams in the temperature range of 300-600 °C. The reduced failure...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials engineering and performance 2008-08, Vol.17 (4), p.607-611
Main Authors: Roy, Ajit K., Venkatesh, Anand, Marthandam, Vikram, Ghosh, Arindam
Format: Article
Language:English
Subjects:
Brittleness
Characterization and Evaluation of Materials
Corrosion and Coatings
Ductile brittle transition
Engineering Design
Failure
Materials engineering
Materials Science
Nickel base alloys
Plastic deformation
Quality Control
Reliability
Safety and Risk
Strain
Tribology
Work hardening
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The results of tensile testing involving Waspaloy indicate that the failure strain was gradually reduced at temperatures ranging between ambient and 300 °C. Further, serrations were observed in the engineering stress versus strain diagrams in the temperature range of 300-600 °C. The reduced failure strain and the formation of serrations in these temperature regimes could be the result of dynamic strain aging of this alloy. The extent of work hardening due to plastic deformation was reduced at temperatures above 300 °C. A combination of ductile and intergranular brittle failures was seen at temperatures above 600 °C. γ′ was detected at all tested temperatures.
ISSN:1059-9495
1544-1024
DOI:10.1007/s11665-007-9189-x