Home Kovove Materialy-Metallic Materials 2014 Metallic Materials Vol. 52 (2014), no. 2, pp.113-116

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Metallic Materials Vol. 52 (2014), no. 2, pp.113-116

Title: Solid-state welded interface characterization for boron-doped Ni3Al – Ti-6Al-4V couple and its comparison to Ni3Al – AISI 304 stainless steel couple

Abstract: In this study, solid-state welding of boron-doped Ni3Al with Ti-6Al-4V was carried out to determine the nature of the interface species and bonding. The interface was examined with SEM, EDS, and micro-hardness tests. Interface stress distribution induced due to different thermal expansion properties was studied with ANSYS modeling. Due to eutectic transformation phenomenon occurring at the interface of boron-doped Ni3Al with Ti-6Al-4V couple, a brittle dendritic structure formed and the mismatched thermal expansion properties of materials led to crack formation at the welding zone. Also, a comparison of the interface zones for boron-doped Ni3Al with Ti-6Al-4V and boron-doped Ni3Al with AISI 304 stainless steel was provided to demonstrate different interface characteristics.

Keywords: solid-state welding, boron-doped Ni3Al, Ti-6Al-4V, AISI 304 stainless steel, intermetallic alloy, Kirkandall effect
Year: 2014, Volume: 52, Issue: 2 Page From: 113, Page To: 116

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