Document Type
Annual Report
Publication Date
2007
Publisher
University of Nevada, Las Vegas
Publisher Location
Las Vegas (Nev.)
First page number:
32
Last page number:
33
Abstract
During the past academic year, this project was focused on the characterization of residual stress in welded specimens consisting of austenitic and martensitic stainless steels using an activation technique based on the Positron Annihilation Spectroscopic (PAS) method. The extent of residual stress was expressed in terms of three line-shape parameters (S-, W- and T-). Further, efforts were made to characterize linear lattice defects such as dislocations in the vicinity of Fusion-Line (FL), Heat-Affected- Zone (HAZ), and the base material of the welded specimens using Transmission Electron Microscopy (TEM). The metallurgical microstructures at these three regions have also been evaluated by optical microscopy.
Keywords
Austenitic stainless steel; Deformations (Mechanics); Martensitic stainless steel; Nuclear reactors — Materials — Testing; Plasticity; Strains and stresses; Welded joints — Fatigue
Controlled Subject
Austenitic stainless steel; Martensitic stainless steel; Nuclear reactors--Materials--Testing
Disciplines
Materials Science and Engineering | Metallurgy | Nuclear Engineering | Oil, Gas, and Energy
File Format
File Size
480 KB
Language
English
Rights
IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/
Repository Citation
Roy, A. K.
(2007).
Use of Positron Annihilation Spectroscopy for Stress-Strain Measurements.
32-33.
Available at:
https://digitalscholarship.unlv.edu/hrc_trp_sciences_materials/118