Abstract
Ti-xIn (x = 0, 5, 10, 15 and 20 wt%) alloys were prepared to investigate the effect of indium on the microstructure, mechanical properties, and corrosion behavior of titanium with the aim of understanding the relationship between phase/microstructure and various properties of Ti-xIn alloys. The Ti-xIn alloys exhibited a lamellar α-Ti structure at an indium content of up to 20 wt%. High-resolution TEM images of the Ti-xIn alloys revealed that all the systems contained a fine, acicular martensitic phase, which showed compositional fluctuations at the nanoscopic level. The mechanical properties and corrosion behavior of Ti-xIn alloys were sensitive to the indium content. The Vickers hardness increased as the In content increased because of solid solution strengthening. The Ti-xIn alloys exhibited superior oxidation resistance compared to commercially pure Ti (cp-Ti). Electrochemical results showed that the Ti-xIn alloys exhibited a similar corrosion resistance to cp-Ti. Among the alloys tested, Ti-10In showed a potential for use as a dental material.
Highlights
Titanium (Ti) and Ti-based alloys have received widespread attention for orthopedic and dental implant applications because of their favorable mechanical properties, including high specific strength, corrosion resistance, and good biocompatibility after implantation [1,2]
In all of the Ti-xIn alloys, no peak splitting was observed, which indicated that the structural transformation from α-Ti to β-Ti did not occur
This study investigated the influence of In on the microstructure, mechanical properties, and corrosion behavior of commercially pure titanium
Summary
Titanium (Ti) and Ti-based alloys have received widespread attention for orthopedic and dental implant applications because of their favorable mechanical properties, including high specific strength, corrosion resistance, and good biocompatibility after implantation [1,2]. Ti has several drawbacks, such as low deformability, low wear resistance, and high reactivity with surrounding impurities, such as oxygen and nitrogen, at elevated temperatures [3,4]. Enhanced properties, such as the lower modulus of elasticity, increased corrosion resistance, and improved machinability, are possible through alloying Ti with a variety of elements. The goal of which was the development of a dental titanium alloy with better mechanical properties than cp-Ti, the effect of alloying indium on the microstructure, mechanical properties, and corrosion behavior of Ti-In binary alloys was investigated by adding 5, 10, 15, and. In this work, “Ti-xIn” will stand for “Ti-x wt% In”
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