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Title: Fatigue Life Improvement Of High-strength Materials By Shot Peening
Author: Schutz, W.
Source: Conf Proc: ICSP-1, (p.423-434)
Publication year 1981
Document number: 1981026
Number of pages: 11
Abstract:
Shot peening for the fatigue strength improvement of aircraft components by residual compressive stresses was investigated to optimize shot peening for three high-strength
materials under constant amplitude loads. The possible fatigue life increases by using the optimized methods in realistic load sequences and the changes in residual stress
during realistic load sequences were also determined. The studies were made using AZ74.61 (A1ZnMgCuAg, German aircraft material designation 3.4354.7, a Ag-bearing A1 alloy,
Ti--6A1--6V--2Sn (3.7174.1) and X2NiCoMo18/9/5 (1.6354.9), a maraging steel.
Descriptors: Maraging steels-- Mechanical properties; Aluminum base alloys-- Mechanical properties; Titanium base alloys-- Mechanical properties; Fatigue life; Shot
peening; Aircraft components
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