Evaluation of Tool Performance With Nanocrystalline Multilayer Coatings on the Machinability of Superalloy Inconel 718

Subject Areas : Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering

رسول  مختاری همامی ¹ (کارشناس ارشد، دانشکده مکانیک، دانشگاه صنعتی اصفهان)
بهروز  موحدی ² (استادیار، دانشکده علوم و فناوریهای نوین، گروه مهندسی نانو فناوری، دانشگاه اصفهان)
ایرج  لیرابی ³ (دانشجوی دکتری، دانشکده مکانیک، دانشگاه بیرجند)
مهدی  بازرگان حقیقی ⁴ (مدرس، دانشکده مکانیک، دانشگاه آزاد اسلامی واحد خمینی شهر.)

Received: 2015-09-30 Accepted : 2015-09-30 Published : 2010-12-22

Keywords: Dry and wet machining, Superalloy Inconel718, Nanocrystalline multilayer coatings,

Abstract :

In this paper, the performance of the cutting tool with nanocrystalline multilayer coatings (TiN+TiAlN) for machining of superalloy Inconel 718 in the dry and wet conditions was studied. The multi layer TiN and TiAlN with nanocrystalline structure was applied by physical vapor deposition technique (arc evaporation) on the WC-Co inserts. The results of the ball on disc wear test and the machining of superalloy Inconel 718 in wet and dry conditions indicated that the nanocrystalline coatings could produce better performance of tools in turning. Abrasion and adhesive wear resistance improved by nanocrystalline and modified Aluminum composition in TiAlN coating as well as toughness and thermal stability.

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