High-Temperature Oxidation Behavior of Ti6242S Ti-based Alloy

نویسندگان

چکیده

The aircraft industry is always looking for improved efficiency through higher in-service engine temperatures and lighter structures. Titanium-based alloys are good candidates such applications because of their high specific strength. However, when exposed to high-temperature oxidizing environments, a large amount dissolved oxygen can be found in beneath the growing oxide scale, possibly leading embrittlement. Consequently, evaluating oxidation resistance these essential. With this aim, long-term tests were carried out on Ti6242S alloy between 500 650 °C study effect temperature, surface preparation microstructure scale dissolution. While increasing temperature from 560 625 led accelerated kinetics, had no noticeable mass variations diffusion profiles. Regarding microstructure, comparing samples having similar ?-phase fraction but very different microstructures (fineness morphology), there wasn’t any significant change after 1 kh at °C.

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ژورنال

عنوان ژورنال: Oxidation of Metals

سال: 2021

ISSN: ['0030-770X', '1573-4889']

DOI: https://doi.org/10.1007/s11085-021-10073-4