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09231 Influence of AlN Formation on Corrosion Behavior and High-Temperature Oxidation Resistance Using Tungsten Inert Gas Process

Picture for 09231 Influence of AlN Formation on Corrosion Behavior and High-Temperature Oxidation Resistance Usi
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Product Number: 51300-09231-SG
ISBN: 09231 2009 CP
Author: Hamed Ghazizadeh, Hamidreza Zebardast, Ali Baghaee Ravari and Mahdi Ghazizadeh
Publication Date: 2009
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Surface alloyed layer based on aluminum nitride (AlN) has been produced on wrought aluminum 5052 using tungsten inert gas technique. Process control parameters such as heat input have been studied. The structural analysis by X-ray diffraction (XRD) indicates that the crystalline AlN phase was formed by surface melting in nitrogen atmosphere. Studies of XRD, optical microscopy (OM) and scanning electron microscopy (SEM) were carried out on alloyed layer. The alloyed layer on the sample surface prevented oxygen from penetrating into matrix, suggesting the enhancement of oxidation resistance and improvement of corrosion behavior of Al-5052 by formation of alloyed layer (AlN).

Keywords: Tungsten inert gas; Oxidation resistance; Aluminum nitride; Wrought aluminum 5052
Surface alloyed layer based on aluminum nitride (AlN) has been produced on wrought aluminum 5052 using tungsten inert gas technique. Process control parameters such as heat input have been studied. The structural analysis by X-ray diffraction (XRD) indicates that the crystalline AlN phase was formed by surface melting in nitrogen atmosphere. Studies of XRD, optical microscopy (OM) and scanning electron microscopy (SEM) were carried out on alloyed layer. The alloyed layer on the sample surface prevented oxygen from penetrating into matrix, suggesting the enhancement of oxidation resistance and improvement of corrosion behavior of Al-5052 by formation of alloyed layer (AlN).

Keywords: Tungsten inert gas; Oxidation resistance; Aluminum nitride; Wrought aluminum 5052
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