The effect of boron on oxide scale formation in a new polycrystalline superalloy

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• 作者：Paraskevas Kontis ; Stella Pedrazzini ; Yilun Gong ; Paul A.J. Bagot ; Michael P. Moody ; Roger C. Reed ; ^{roger.reed@eng.ox.ac.uk" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Oxidation ; Boron ; Atom probe tomography
• 刊名：Scripta Materialia
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：127
• 期：Complete
• 页码：156-159
• 全文大小：765 K

文摘

Boron addition to a new polycrystalline nickel-based superalloy promotes the formation of a hitherto unreported aluminoborate phase, in the scale produced by oxidation in air at 900 °C for ~ 10,000 h. Atom probe tomography provides unambiguous confirmation of this. The ramifications of its formation are discussed.