Low Cycle Fatigue Properties of 2124/SiCp Al-Alloy Composites

Authors : İlyas UYGUR

Pages : 265-274

View : 17 | Download : 6

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :In this article, powder metallurgy processed metal matrix composites are tested under the strain control loading conditions. The influence of volume fraction insert ignore into journalissuearticles values(17 and 25 vol%);, particulate size insert ignore into journalissuearticles values(2.5 and 15 m m); of reinforcement particles and strain ratio insert ignore into journalissuearticles values(R=0, R=0.5 and R= -1); are examined for 2124 Al-alloy-T4 composites. Increasing the content of SiCp results in the degradation of strain control fatigue properties. The monotonic and cyclic stress-strain response of the 2124Al -- insert ignore into journalissuearticles values(25 vol % 2.5 m m); SiCp composite was significantly altered by strain ratio values.Fatigue cracks frequently initiated from intensively stress concentrated regions. Increasing volume fraction and particle sizes result in early crack initiation.
Keywords : Composites, Fatigue, Low cycle fatigue