Enhancement of high-temperature durability for Ni-20Co-28Cr-10Al-0.5Y coatings via high-current pulsed electron beam irradiation at 1323 K

IF 5.8 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Journal of Alloys and Compounds Pub Date : 2025-04-02 DOI:10.1016/j.jallcom.2025.180201

Hanqing Xie , Jie Cai , Chuntang Yu , Min Feng , Xiaoyun Li , Shutao Chen , Wanqi Pu , Shuai Li , Zebin Bao , Shenglong Zhu , Fuhui Wang

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Abstract

The arc ion plated NiCoCrAlY coating was irradiated by high-current pulsed electron beam (HCPEB). A comparison of high temperature properties was made between the HCPEB-treated and conventional NiCoCrAlY coatings. The isothermal and cyclic oxidation tests of two types of coatings were evaluated at 1323 K, and the finite element simulation analysis of the coating after cyclic oxidation test was carried out. The results indicated that the HCPEB-treated coating demonstrated superior anti-oxidation properties. The adherent, thinner α-Al₂O₃ scale effectively prevented the emergence of detrimental (Ni, Co)(Cr, Al)₂O₄ spinel oxide. Moreover, the HCPEB treatment promotes the transformation of θ-Al₂O₃ to α-Al₂O₃ in the initial oxidation stage. The effect of HCPEB treatment on oxidation resistance and TGO (Thermally Grown Oxide) spallation resistance of the NiCoCrAlY coating is discussed in detail.

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来源期刊

Journal of Alloys and Compounds 工程技术-材料科学：综合

CiteScore

11.10

自引率

14.50%

发文量

5146

审稿时长

67 days

期刊介绍： The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.

Enhancement of high-temperature durability for Ni-20Co-28Cr-10Al-0.5Y coatings via high-current pulsed electron beam irradiation at 1323 K

Abstract

Enhancement of high-temperature durability for Ni-20Co-28Cr-10Al-0.5Y coatings via high-current pulsed electron beam irradiation at 1323 K