CermeTi® discontinuously reinforced Ti-matrix composites: Manufacturing, properties, and applications

Abstract

Advanced powder-metallurgy technology has led to the development of the CermeTi ® family of titanium metalmatrix composites. Reinforcing the titanium alloy matrix with titanium carbide or titanium boride particles results in superior properties. These discontinuously reinforced titanium composites have excellent room-and elevated-temperature properties and are exceptionally wear resistant. High quality, near-net shape CermeTi composite components are being produced commercially and are being evaluated for potential applications in military vehicles, commercial automotive engines, sporting goods, industrial tooling, and biomedical devices.

Introducción al procesado pulvimetalúrgico del titanio

“…Como se observa en la figura, en algunos casos los materiales sinterizados o compactados isostáticamente en caliente son posteriormente procesados mediante forja o extrusión. Mediante el proceso CHIP se pueden producir normalmente piezas con un peso en torno a los 20 kg [46] . Dynamet produce un material compuesto denominado CermeTi, consistente en Ti-6Al-4V reforzado con partículas de TiC o TiB, dando lugar a las variantes comerciales CermeTi-C y CermeTi-B respectivamente.…”

“…Los materiales fabricados por Dynamet son empleados para la industria aeroespacial y militar, automoción, material deportivo, implantes médi-cos, materiales de herramientas, etc. [46] .…”

The Impact of Mechanical Effects on Granulometric Composition of TiB2 – Based Materials

“…These are, above all, a high melting point, high hardness, low electrical resistance, high thermal conductivity, resistance to abrasive wear and corrosive environment, relatively low density [1,2]. Because of this, titanium diboride is widely used in modern technology as part of wear-resistant and erosion-resistant materials, in the manufacture of lightweight ceramic armor, crucibles and boats for vacuum evaporation of metals with subsequent metallization, parts of chemical equipment, and cermets for nuclear power engineering [3][4][5] .…”

Piezoelectric Actuator-Based Nanoindentation

“…This has been brought about by their unique properties which include high specific strength, specific stiffness, and specific fatigue resistance (i.e., high cycle fatigue) (Tjong and Wang 2005). Some of the applications=potential applications for Ti matrix composites as reported to date (Abkowitz et al 2004;Froes et al 2004) include: die casting shot sleeve liners, tank track and wheeled vehicle undercarriage components, automotive valves, connecting rods and piston pins, spinal articulating devices, hockey skate blades, and knives. Application expectations for titanium metal matrix composites include missile fins, domed rocket cases, and aircraft engine components (Ranganath 1996).…”