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説明:

Mechanical testing featuring miniaturised specimens are resource-efficient alternative to standardised testing that can offer unparalleled insights. In this work, the established electro-thermal mechanical testing (ETMT) procedure was used for evaluating potential damage to microstructure given by unexpected thermal/mechanical load. Two conceptualised scenarios were considered. The first case concerns property deterioration given long-term complex exposure of temperature and stress for a turbine blade. The second case concerns an ‘accidental’ solution treatment at near-incipient melting temperature. Quasi-static and dynamic tests were carried out to pick up potential property change against the reference condition. For the reference microstructure, low cycle fatigue was shown successful in yielding reproducible fatigue life and pick up location dependent hardening response between suction vs pressure side of a turbine blade. The property difference, given each scenario, was benchmarked accordingly and rationalised with microscopic evidence.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: Ni-base single crystal superalloy, Turbine blade, Heat treatment, Miniature tensile test

刊行年月日: 2026-01-14

出版者: Springer Science and Business Media LLC

掲載誌:

• Metallurgical and Materials Transactions A (ISSN: 10735623) vol. 57 issue. 5 p. 1766-1779

研究助成金:

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1007/s11661-025-08096-6

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更新時刻: 2026-04-20 13:39:52 +0900

MDRでの公開時刻: 2026-04-20 16:27:33 +0900