Open AccessShot peening effect on fatigue life of EN GJS 600-3 grade ductile iron wheel hubs
Author(s) -
Waseem Arshad,
Hassan Bilal,
Zhong Sun,
Weiqing Shi,
Andrew Godfrey
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/770/1/012105
Subject(s) - shot peening , materials science , peening , cast iron , durability , metallurgy , shot (pellet) , casting , fatigue testing , fatigue limit , structural engineering , composite material , engineering , residual stress
Durability of wheel hubs is limited by their fatigue failure. Wheel hubs are mostly manufactured by casting process using ductile iron, and their fatigue strength can be improved by shot peening, which induces compressive stresses at their surfaces. In this study, fatigue life of wheel hubs manufactured from grade EN GJS 600-3 iron was studied. Shot-peened and untreated wheel hubs were subjected to fatigue test with the number of loading cycles up to 1 million. The test results showed that all untreated wheel hubs failed the test, while all shot-peened ones passed the 1 million cycle’s milestone. This study proved that fatigue life of wheel hubs manufactured from grade EN GJS 600-3 iron was improved almost by 100 percent via shot peening.