On the effect of Ti on Oxidation Behaviour of a Polycrystalline\n Nickel-based Superalloy

2018/10/24 by S. Pedrazzini, Pedrazzini, S., BS Rowlands +23
Engineering · #Advanced Materials Characterization Techniques #FOS: Physical sciences #High Temperature Alloys and Creep #High-Temperature Coating Behaviors #Materials Science (cond-mat.mtrl-sci)

paper · pdf · doi:10.48550/arxiv.1810.10444

openalex publication_date 2018/10/24 · openalex created_date 2022/08/02 · openalex updated_date 2026/07/28

Abstract

Titanium is commonly added to nickel superalloys but has a well-documented\ndetrimental effect on oxidation resistance. The present work constitutes the\nfirst atomistic-scale quantitative measurements of grain boundary and bulk\ncompositions in the oxide scale of a current generation polycrystalline nickel\nsuperalloy performed through atom probe tomography. Titanium was found to be\nparticularly detrimental to oxide scale growth through grain boundary\ndiffusion.\n

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