Thermal Relaxation Of Residual Stresses Induced By Shot Peening In In718

Author:  J. Hoffmeister, V. Schulze, A. Wanner, R. Hessert,
Source:  Conf Proc: ICSP-10 Tokyo, Japan 2008
Doc ID:  2008060
Year of Publication:  2008
Abstract:  
ABSTRACT Shot peening is often used to improve the fatigue life of turbine components applied at elevated temperatures. Therefore it is very important to know the thermal relaxation of residual stresses. The objective of this work was to analytically describe thermal relaxation of residual stresses in the Ni-based superalloy IN718 induced by shot peening. Shot peened specimens were aged in a temperature range up to 750