Solidification behaviour of a high chromium nickel base alloy weld deposited metal

Autor:	X. J. Di, B. Chen
Rok vydání:	2015
Předmět:	Materials science Scanning electron microscope Metallurgy Alloy engineering.material Condensed Matter Physics law.invention Metal Dendrite (crystal) Optical microscope law Transmission electron microscopy visual_art visual_art.visual_art_medium engineering General Materials Science Nichrome Eutectic system
Zdroj:	Science and Technology of Welding and Joining. 20:325-329
ISSN:	1743-2936 1362-1718
DOI:	10.1179/1362171815y.0000000019
Popis:	The solidification behaviour including microsegregation and secondary phase formation of a high chromium nickel base alloy weld deposited metal was examined with optical microscopy, scanning electron microscopy and transmission electron microscopy. Microsegregation potential of major alloying elements in the weld deposited metal was investigated. The microconstituents formed during solidification were identified to be TiC and γ/Laves eutectic constituent. Most γ/Laves eutectic constituents were located at the dendrite interstices due to the microsegregation of Nb, Mo and Si. The volume percent of γ/Laves constituent was predicted by using Scheil equation, and there was a reasonable agreement between the predicted and measured value. Last, two possible solidification paths added to the γ-Nb-C pseudoternary solidification diagram were proposed to analyse the solidification sequence of the new high chromium nickel base alloy.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::10b1b5a69a0c03df2cebb2827da19570 https://doi.org/10.1179/1362171815y.0000000019 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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