Development of a Novel Ni-Based Multi-principal Element Alloy Filler Metal, Using an Alternative Melting Point Depressant
نویسندگان
چکیده
Abstract Brazing is a crucial joining technology in industries where nickel-superalloy components must be joined. Nickel-based brazing filler metals are extensively employed, possessing excellent mechanical properties, corrosion resistance, and retained strength at elevated temperatures. To function as metal, the alloy melting point reduced to below that of materials being joined, but addition depressants (MPDs) such boron, silicon, phosphorus can, however, lead formation brittle intermetallics, potentially compromising joint performance. In present work, novel multi-principal element (in style high entropy alloy), utilizing Ge an alternative MPD along with B addition, investigated. The design process considered binary phase diagrams predictions based on Thermo-Calc software empirical thermodynamic parameters. was used vacuum braze Inconel-718, microstructural investigations reported. maximum shear achieved 297 MPa temperature 1100 °C 60-minute hold time, isothermal solidification completed. Shear only slightly increased width. Assessments made ability accurately predict properties multi-principle alloys using
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ژورنال
عنوان ژورنال: Metallurgical and Materials Transactions
سال: 2021
ISSN: ['1073-5623', '1543-1940']
DOI: https://doi.org/10.1007/s11661-021-06246-0