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Titanium and Titanium Alloys

Author: J.R. Davis, Editor   |   Document Download   |   Product code: ZAUTB2001P417

File size: 122 KB

Classified as: Biomaterials Titanium

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General Characteristics. Titanium is a low-density element (? 4.5 g/cm3, which is about 60% of the density of iron) that can be highly strengthened by alloying and deformation processing. Titanium is nonmagnetic and has good heat-transfer properties. Its coefficient of thermal expansion is somewhat lower than that of steels and less than half that of aluminum. Titanium and its alloys have melting points higher than those of steels, but maximum useful temperatures for structural applications generally range from 425 to 595 °C (800 to 1100 °F). Titanium aluminide alloys show promise for applications at temperatures up to 760 °C (1400 °F). Titanium has the ability to passivate and thereby exhibits a high degree of immunity to attack by most mineral acids and chlorides. Titanium is nontoxic and generally biologically compatible with human tissues and bones. The combination of high strength, stiffness, good toughness, low density, and good corrosion resistance provided by various titanium alloys at very low to elevated temperatures allows weight savings in aerospace structures and other high-performance applications. The excellent corrosion resistance and biocompatibility coupled with good strength make titanium and its alloys useful in chemical and petrochemical applications, marine environments, and biomaterial applications.

  • From: Alloying: Understanding the Basics (ASM International)
  • Published: December 01, 2001
  • Pages: 15
  • Review Type: Peer reviewed