Analysis of Titanium Materials

Introduction

Titanium materials have mechanical properties such as corrosion resistance and heat resistance and are used in a variety of fields ranging from aerospace to consumer products. For example, general-purpose materials are used in liquefied fuel tanks, aircraft engines, bicycle gears, and other applications, while special materials are used in eyeglass frames and orthodontic wire. General-purpose materials are classified into three types, unalloyed commercially pure titanium (CP titanium), which is high-purity titanium with excellent corrosion resistance and seawater resistance and is the most general type, corrosion-resistant titanium alloys with excellent corrosion resistance and crevice corrosion resistance, which are secured by adding trace elements to promote the formation of a passive film, and titanium alloys to which alloying elements are added to adjust formability, strength, and other properties. Special materials are broadly divided into high purity titanium, which has higher purity than CP titanium, and functional titanium alloys such as shape-memory alloys and super elastic alloys, which are titanium alloys with additional unique functions. Titanium materials are utilized in the medical field because of their excellent biocompatibility, and research and development of low- toxicity titanium alloys is being conducted. This article introduces examples of analysis of a dental root implant made of medical titanium material and an orthodontic wire with super elastic characteristics using an EPMA-8050G EPMA^TM electron probe microanalyzer.

December 4, 2019 GMT