9. RAMI-A. ALMATANI
Information acquired: 2025
RAMI-A. ALMATANI is an academic who published a paper in 2017 entitled THE EFFECT OF PORE DENSITY AND DISTRIBUTION ON FATIGUE WEAK LINKS IN AN A713 CAST ALUMINUM ALLOY. RAMI-A. ALMATANI published this work as part of a team: Almatani, Rami A.. Here is a description of this work: The,,effects of pore density and distribution were investigated on the fatigue crack initiation behavior in an A713 sand cast aluminum alloy plate of 12 mm thickness. The applied stress, the number of cycles to failure (S-N) curves of the samples taken from 2 mm and 5 mm from the free surface were obtained using four-point bend fatigue testing at room temperature, frequency of 20 Hz, stress ratio of 0. 1, sinusoidal waveform, and in ambient air. The fatigue strengths of both, the 2 mm and 5 mm samples were 60% of the yield strength (σy=171. 9 MPa) of the alloy. Optical microscopy, SEM, and EDS mapping were used to characterize pores and particles in 2 mm and 5 mm samples. The average pore sizes of the 2 mm and 5 mm samples were measured to be 10 to 14 μm, and 14 to 32 μm, respectively. The pore number densities in 5 mm and 2 mm sample.