Electronics Incorporated - The Shot Peener - Shot Peening Library
Title: Selection Of Optimum Peening Parameters To Improve Stress Corrosion Cracking Resist.of 18mn 4cr Generator End Ret.ring Steel
Author: Mukhopadhyay, Prasad, Sharma
Source: Conf Proc: ICSP-4, (p.543-550)
Publication year 1990
Document number: 1990060
Number of pages: 8
Abstract:
The effect of peening parameters such as shot size, nozzle pressure and peening time on 18Mn4Cr austenitic steel has been studied. Peening led to the formation of
compressive residual stress layer on the surface, martensite transformation in some cases and reduced the surface roughness. Based on the results, a set of optimum peening
parameters was evolved. Unpeened and peened specimens were tested for their susceptibility to stress corrosion in oxygenated aqueous chloride medium at 70+°C using a 3-point
bend test method. The results indicate a considerable improvement in crack initiation time in peened specimens, compared to unpeened specimens.
Descriptors: 18Mn4Cr steel; Peening parameters; Compressive residual stress; Martensite- Surface roughness; Stress Corrosion cracking
Download full text pdf file
www.shotpeener.com
This page last revised: 04/24/2008