【摘 要】
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In the present reserch, a model has been proposed for estimate fracture toughness of Nickel-phosphorus (EN) layers. For this purpose, high phosphorus (9%) EN co
【机 构】
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Department Of Engineeringjslamic Azad University-Saveh Branch,Saveh 39187, Iran ,Department Of Mater
论文部分内容阅读
In the present reserch, a model has been proposed for estimate fracture toughness of Nickel-phosphorus (EN) layers. For this purpose, high phosphorus (9%) EN coatings with thicknesses of 6, 12, 24, 36 and 48 urn were applied on steel substrates and then treated as conventional process. Fracture toughness of coatings was obtained using Vickers indentation method. It is found that fracture toughness increses as coating thickness reduces. Effect of coating thickness on fracture toughness was exhibited by various models. Evaluation of models revealed good agreement between of proposed model (Kc=f(t,t2)) and experimental data.
In this present reserch, a model has been proposed for estimating fracture toughness of Nickel-phosphorus (EN) layers. For this purpose, high phosphorus (9%) EN coatings with thicknesses of 6, 12, 24, 36 and 48 urn were applied on steel substrates and then treated as conventional process. Fracture toughness of coatings was obtained using Vickers indentation method. It is found that fracture toughness increses as coating thickness reduces. Effect of coating thickness on fracture toughness was exhibited by various models. good agreement between of proposed model (Kc = f (t, t2)) and experimental data.
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