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Influence of Crystal Orientation on the Freckle Formation in Directionally Solidified Superalloys

DX Ma, M Mathes, B Zhou… - Advanced Materials …, 2011 - Trans Tech Publ
Abstract. Freckle occurrence is known to be dependent on the casting size and the superalloy
components with large cross section are more prone to freckle formation. In our directional solidification
experiment of superalloys freckles are observed in some thin samples, while some ...
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Investigation of Freckle Formation under Various Solidification Conditions

DX Ma, B Zhou… - Advanced Materials …, 2011 - Trans Tech Publ
Page 1. Investigation of freckle formation under various solidification conditions Dexin Ma 1,a ,
Bin Zhou 2,b , Andreas Bührig-Polaczek 1,c ... Abstract. In the present work the influence of process
parameters on freckle formation in superalloy CMSX-4 is demonstrated. ...
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An atom-probe tomographic study of freckle formation in a nickel-based superalloy

[PDF] from northwestern.eduY Amouyal… - Acta Materialia, 2011 - Elsevier
Freckles are misoriented defects formed during the solidification of single-crystal (SC)
nickel-based superalloys, which are used for turbine blades in jet engines and power
generators. Freckles can cause degradation in a turbine blade's mechanical properties at ...

A freckle on the foot

N Curr… - Medicine Today, 2011 - medicinetoday.com.au
A 68-year-old man presented with a pigmented lesion on the plantar surface of his right foot
(Figure 1), which he said had changed in colour and increased in size over the previous 12
months. The lesion measured 10 mm in maximum diameter and was irregularly shaped, ...
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Moletest: A Web-based Skin Cancer Screening System

[PDF] from dit.ieJM Blackledge… - 2011 - arrow.dit.ie
... A standard approach to the diagnosis of Melanoma is to urge people to look for any change
in colour, size and shape of a mole or freckle, following the ABCD guidelines which are as
follows: • Asymmetry - any change in the shape of the mole or freckle. ...
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