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15 - General Engineering

University of Leicester

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Output 51 of 99 in the submission

Article title

Mechanism for Formation of Surface Scale during Directional Solidification of Ni-Base Superalloys

Type

D - Journal article

DOI

10.1007/s11661-011-1027-y

Title of journal

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE

Article number

Volume number

43A

Issue number

First page of article

1288

ISSN of journal

1073-5623

Year of publication

2012

URL

Number of additional authors

Additional information

Surface scale is one of the most important casting defects in single-crystal turbine blades, costs over £1.2m per annum in a modern single-crystal casting foundry. It affects the grain orientation assessment and causes incipient surface melting during heat treatment of the blades. We elucidate the mechanism of scale formation during casting and show how the scale forms. This leads to the methods to minimise the defect formation. On-going industrial trials are taking place at Rolls-Royce. This work has led to collaborations with DLR, KTH, Erlangen University, ISIS, Rolls-Royce in proposing TSB and EU-FP7 research projects. [Neil Dsouza, 01332260706, neil.dsouza@rolls-royce.com].

Interdisciplinary

Cross-referral requested

Research group

E - Mechanics of Materials

Proposed double-weighted

Double-weighted statement

Reserve for a double-weighted output

Non-English

English abstract