Effect Of Heat Treatment Process Of Titanium For Watch Manufacturing Application

Mohd Najmi, Abdullah Sani (2009) Effect Of Heat Treatment Process Of Titanium For Watch Manufacturing Application. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

High strength, low density, and excellent corrosion resistance are the main properties that make titanium attractive for a variety of applications. Examples include aircraft (high strength in combination with low density), aero engines (high strength, low density, and good creep resistance), biomedical devices (corrosion resistance and high strength) and components in chemical processing equipment (corrosion resistance). Titanium also has been an attraction in everyday wear accessories like watch. The advantages of titanium use in watch application are such as it is light, comfortable, hypoallergenic which is free from nickel, durable and have corrosion resistance feature. To give a better quality of titanium in watch application, heat treatment procedure is applied to it. Many methods are use in titanium heat treating. There are such as annealing, quenching, tempering, solution treating and aging and isothermal transformation. Heat treatment process generally execute is to improve the materials properties. The amount of phase present in titanium is control by heat treatment process. The phases that have in titanium are alpha, beta, alpha-beta, near-alpha and near beta. Mechanical test is then executed to prove the quality of heat treatment process in term of its parameter use. The suitable mechanical testing has been choosing for this research and they are Rockwell Hardness Test and Charpy Impact Test. For microscopic analysis Optical Microscope is use to analyze the microstructure of specimen that not undergo heat treatment and specimen that undergo heat treatment process. Data obtain from experimental and testing process will be statistically analyzed by F-Test and T-test method.

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