What is it about?
In this study, the possibility of obtaining hardened homogeneous porous 60NiTi parts, with different cost-effective methods, was microstructurally and mechanically investigated.
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Why is it important?
A typical hardening and homogenizing treatment for 60NiTi consists of heating this alloy to ~1050°C and then quenching the part with a fast cooling rate. To the best of our knowledge, in researches carried out previously, manufactured 60NiTi parts have been solutionized in vacuum furnaces or furnaces backfilled by inert argon gas and in the next step, the parts have been drop-quenched in water or oil to prevent the formation of soft equilibrium Ni3Ti and and/or metastable Ni3Ti2 phases. However, vacuum furnaces with the possibility of drop-quenching the specimen after solutionizing treatment are not always available due to practical difficulties. In addition, backfilling the furnaces with inert argon gas, if not unavailable, is very expensive. These issues dampen the interest of industries in conducting solutionizing treatments for 60NiTi. In this paper, a cost-effective method is proposed to successfully obtain hard, bio-compatible and homogeneous porous 60NiTi parts.
Perspectives
This experience allowed me to become familiar with, and overcome, the many challenges encountered with the processing of materials.
Dr Khashayar Khanlari
Universite de Sherbrooke
Read the Original
This page is a summary of: An Investigation on Microstructural and Mechanical Properties of Porous 60NiTi Parts Solutionized by Different Cost-Effective Methods, Metallography Microstructure and Analysis, April 2018, Springer Science + Business Media,
DOI: 10.1007/s13632-018-0443-4.
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