Microstructure Characterization of Biomedical TiMoFe Alloy

Characterization of the Dendritic Microstructure of Investment Cast Alloy 718

The as-cast alloy 718 shows a multiphasic structure which consists of dendrites, carbides and Laves phases. The amount, size, shape, and dispersion of these phases affect the properties and the processing which follows, This structure was characterized by measurements of volume fraction, size, dispersion, and shape factor of carbide and Laves phases. Secondary arm spacing and Vickers hardness w...

ELECTROCHEMICAL CHARACTERIZATION OF BIOMEDICAL TITANIUM ALLOY Ti-35Nb-7Zr-5Ta

The β titanium alloy Ti-35Nb-7Zr-5Ta (TNZT) has been recently developed as a new implant material. This alloy is composed of non-toxic elements with low modulus of elasticity and is ideal for implant applications. The aim of present study was to evaluate the corrosion resistance of this alloy in an artificial physiological solution. In the present work, the electrochemical behavior of TNZT allo...

Microstructure, mechanical properties and superelasticity of biomedical porous NiTi alloy prepared by microwave sintering.

Porous NiTi alloys were prepared by microwave sintering using ammonium hydrogen carbonate (NH4HCO3) as the space holder agent to adjust the porosity in the range of 22-62%. The effects of porosities on the microstructure, hardness, compressive strength, bending strength, elastic modulus, phase transformation temperature and superelasticity of the porous NiTi alloys were investigated. The result...

Microstructure and Crystallographic Texture Characterization of Friction Stir Welded Thin AA2024 Aluminum Alloy

Friction stir welding (FSW) is a promising technique to join aluminum alloys without having problems encountered during fusion welding processes. In the present work, the evolution of microstructure and texture in friction stir welded thin AA2024 aluminum alloy are examined by electron backscattered diffraction (EBSD) technique. The sheets with 0.8 mm thickness were successfully welded by frict...

Microstructure-sensitive investigation of magnesium alloy fatigue