Study on Exfoliation Resistance of Ferro Superalloy Composite Oxide Scale

Hai Tao Wang; Shen Jie Zhou; Hua Shun Yu; Zhong Chu

doi:10.4028/www.scientific.net/AMM.204-208.4011

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 204-208Study on Exfoliation Resistance of Ferro...

Study on Exfoliation Resistance of Ferro Superalloy Composite Oxide Scale

Abstract:

Based on ferro based superalloy K273 and heat resistant steel ZG40Cr24, test alloys were cast by intermediate frequency induction furnace with non-oxidation method by alloying of aluminium and silicon. The oxidation resistance at 1100°C for 500 hours of test alloys was carried out according to oxidation weight gain method. Experimental results show that the scale exfoliation resistance of K273 and ZG40Cr24 is reinforced greatly by Al2O3 and SiO2. The scale exfoliation weight gain rate at 1100°C descends from 1.2681g.m^-2.h^-1 to zero, reaching complete exfoliation resistance for ZG40Cr24 test alloy. Because of 1.5

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Periodical:

Applied Mechanics and Materials (Volumes 204-208)

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4011-4014

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https://doi.org/10.4028/www.scientific.net/AMM.204-208.4011

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Online since:

October 2012

Authors:

Hai Tao Wang, Shen Jie Zhou, Hua Shun Yu, Zhong Chu

Keywords:

Ferro Superalloy, Growing Stress, Oxide Scale, Scale Exfoliation

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