Formation and Prevention of a Surface Defect on the Aerofoil of As‐Cast Nickel‐Based Single‐Crystal Turbine Blades

Volume: 23, Issue: 9, Pages: 2100302 - 2100302
Published: Jul 26, 2021
Abstract
Surface scale is a common casting defect covering up to one-third of the aerofoil on as-cast single-crystal turbine blades. To better understand and control this scale, the scaled and unscaled regions on the surface of a blade are observed. The surface of the unscaled region is covered with a relatively thick and uniform aluminum oxide layer. In comparison, the surface of the scaled region shows a different morphology, which is mainly composed...
Paper Details
Title
Formation and Prevention of a Surface Defect on the Aerofoil of As‐Cast Nickel‐Based Single‐Crystal Turbine Blades
Published Date
Jul 26, 2021
Volume
23
Issue
9
Pages
2100302 - 2100302
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