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

SCRIPTA MATERIALIA

卷:127

Article

Kontis, Paraskevas¹  Pedrazzini, Stella¹  Gong, Yilun¹  Bagot, Paul N.¹  Moody, Michael P.¹  Reed, Roger C.¹ 

[1] Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England

关键词: Oxidation;    Boron;    Atom probe tomography;   

DOI  :  10.1016/j.scriptamat.2016.09.013

来源: Elsevier

【 摘 要 】

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 degrees C for similar to 10,000 h. Atom probe tomography provides unambiguous confirmation of this. The ramifications of its formation are discussed. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. This is an open access article under the CC BY license.

【 授权许可】

Free