The current work aims to investigate the mechanical properties of rare oxide reinforced Mg alloy based MMCs. Magnesium matrix considered in study is AZ91D alloy, whereas earth oxides were CeO2 and Y2O3. Y2O3 particulate reinforcement percentage was varied from 1 3% steps 1% its influence on Stir casting route adopted fabricate sample for study. Microstructure analysis illustrated uniform distri...

This report contains lecture notes of an introductory course on fracture mechanics and strength of brittle materials The course was presented at Philips Passive Components Roermond within the framework of the larger Cecopas course which deals with many aspects related to the development processing and perfor mance of passive components We start with the basics of fracture mechanics theory and f...

In this study, surface properties of Ti-6Al-4V alloy coated with hydroxyapatite coatings were investigated. Wear resistance and fatigue behaviour of samples with coating thicknesses of 10 and 50 µm as well as uncoated samples were examined. Wear experiments demonstrated that the friction factor of the uncoated titanium decreased from 0.31 to 0.06, through a fluctuating trend, after 50 cycles of...

This study investigates and compares fatigue behavior of forged steel and powder metal connecting rods. The experiments included strain-controlled specimen testing, with specimens obtained from the connecting rods, as well as load-controlled connecting rod bench testing. Monotonic and cyclic deformation behaviors, as well as strain-controlled fatigue properties of the two materials are evaluate...

OBJECTIVES The purpose of this study was to determine (1) the weakest zone of resin-dentin bonds and (2) the relation between bond strength and failure mode to clarify the effect of demineralized dentin. METHODS Human premolars were sectioned to expose the dentin surfaces, and the dentin surfaces were conditioned with phosphoric acid for 15, 60, 120, or 180s. Resin-dentin bonded specimens wer...