M. Azadi
Faculty of Materials and Metallurgical Engineering, Semnan University, Iran
[ 1 ] - Effects of Various Ageing Heat Treatments on Microstructural Features and Hardness of Piston Aluminum Alloy
Piston aluminum alloys have different intermetallic phases, such as Cu3Al, Mg2Si ,and AlNi phases. The morphology and the distribution of such phases have important roles on mechanical properties of the piston material. Therefore, in this research, various ageing heat treatments on the mentioned material were done and the microstructural feature and the hardness were studi...
[ 2 ] - Corrosion Failure Study in an Oil Cooler Heat Exchanger in Marine Diesel Engine
In this article, the failure of a heat exchanger during its operation in the marine environment has been analyzed. This heat exchanger was used for cooling the oil in a marine diesel engine. Based on the existing failure history, damages in engine components were observed after 89 hours of engine working due to the leakage of the sea water to the oil. For the objective of the failure analysis, ...
[ 3 ] - A Comparative Study on the Microstructure and Mechanical Properties of Al-Si-Cu/1wt %NCP Composites after T6 Heat Treatment
In this article, microstructural characteristics and mechanical properties of Al-Si-Cu/NCP composites were evaluated. Reinforced nanocomposites with 1 wt% nano-clay were fabricated by the method of the stir casting. Stirring times and temperatures were variable parameters to produce specimens. Consequently, the effect of a T6 heat treatment, which contained solutioning at 490 ºC for ...
[ 4 ] - Effects of Ageing and Forging on Short-term Creep Behaviors of Inconel-713C Superalloy at 850 °C
In this paper, the short-term creep behavior of the Inconel-713C superalloy after different pre-treatments including the ageing and forging processes has been studied at 850 °C. The ageing heat treatment was heating at 930 °C for 16 hours without solutioning process. The optical microscopy (OM) and the scanning electron microscopy (SEM) techniques were applied for microstructural evaluations. T...
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