Effect of Si Addition on Hot Corrosion Behavior of AlCoCrFeNi High Entropy Alloys

doi:10.12442/j.issn.1002-185X.20210206

Home > Archive>Volume 50, Issue 10, 2021 >3640-3647. DOI:10.12442/j.issn.1002-185X.20210206

Effect of Si Addition on Hot Corrosion Behavior of AlCoCrFeNi High Entropy Alloys
DOI:
                        10.12442/j.issn.1002-185X.20210206
                    
Author:
                        Zhang PingZhang Ping
China University of Mining and Technology,School of Material and Physic
Find this author on All Journals
Find this author on BaiDu
Search for this author on this site
Li YuantianLi Yuantian
China University of Mining and Technology,School of Material and Physic
Find this author on All Journals
Find this author on BaiDu
Search for this author on this site
Zhang JinyongZhang Jinyong
China University of Mining and Technology,School of Material and Physic
Find this author on All Journals
Find this author on BaiDu
Search for this author on this site
Chen ZhengChen Zheng
China University of Mining and Technology,School of Material and Physic
Find this author on All Journals
Find this author on BaiDu
Search for this author on this site
Fan YuFan Yu
China University of Mining and Technology,School of Material and Physic
Find this author on All Journals
Find this author on BaiDu
Search for this author on this site
Shen BaolongShen Baolong
China University of Mining and Technology,School of Material and Physic
Find this author on All Journals
Find this author on BaiDu
Search for this author on this site

                    
Affiliation:China University of Mining and Technology,School of Material and Physic
Clc Number:TG146.1
Fund Project:

Article

Figures

Metrics

Reference [28]

Related [20]

Cited by

Materials

Comments

Abstract:

AlCoCrFeNiSix (x=0, 0.2, 0.5, 0.8, 1.0) high entropy alloys were prepared by vacuum arc melting. The effects of Si addition and its content on the hot corrosion behavior of AlCoCrFeNi alloys at 950℃ in mixed salt of 75% Na2SO4 + 25% NaCl (mass fraction) were investigated. The results showed that the surface phase composition of the alloys changed from BCC to FCC due to selective oxidation of Al after 100h hot corrosion. A single Al2O3 scale could be formed preferentially on the surface of the alloy by adding proper amount of Si, and the hot corrosion resistance of the alloy can be improved significantly. However, the mixed oxides scales mainly composed of Al2O3 and Cr-Fe-Co-Si enriched spinel oxides formed on the surfaces of the alloys with the increase of Si content. Under the synergistic action of the growth stress of mixed oxides scale and the multi-element corrosion medium (oxidization-vulcanization-chlorination), the oxide scales were loose and easy to fall off, and serious internal oxidation and vulcanization were observed in the alloys.

Key words:High entropy alloys; AlCoCrFeNi; Si addition; Hot corrosion

Reference

[1] Miracle D B, Senkov O N. Acta Materialia[J], 2017,122:448-511

[2] Butler T M, Weaver M L. Journal of Alloys and Compounds[J], 2016,674:229-244

[3] Hua Yunfeng(华云峰), Pan Wei(潘伟), Li Zhengxian(李争显), et al. Rare Metal Materials and Engineering[J], 2013(09):220-224

[4] Wang S, Wu Y, Gesmundo F, et al. Corrosion Science[J], 2008, 69(5):299-315

[5] Jiang S M, Xu C Z, Li H Q, et al. Corrosion Science[J],2010, 52(2):435-440

[6] He H Y, Liu Z J, Wang W, et al. Corrosion Science[J],2015, 100:466-473

[7] Guo M H, Wang Q M, Ke P L, et al. Surface Coatings Technology[J], 2006, 200(12):3942-3949

[8] Wang Q M, Wu Y N, Ke P L, et al. Surface and Coatings Technology[J], 2004, 186(3):389-397

[9] Sudiro T, Sano T, Kyo S, et al. Materials Transactions[J], 2011, 52(3):433-438

[10] Miao Xiaofeng(苗小锋), Li Zhengqiu(李正秋), Wang Yuncheng(汪云程). Thermal Spray Technology[J], 2018, 010 (003):23-26,18

[11] Shirvani K, Saremi M, Nishikata A, et al. Materials Transactions[J],2002,43(10):2622-2628

[12] Cheng P, Zhao Y, Xu X, et al. Materials Science Engineering A[J],2020,772:138681

[13] Chen Y, Zhu S, Wang X, et al. Vacuum[J],2018,150:84-95

[14] Liu Xiaotao, Lei Wenbin, Ma lijuan, et al. Journal of Alloys and Compounds[J],2015, 630:151-157

[15] Kumar A, Dhekne P, Swarnakar A K, et al. Materials Letters[J], 2016,188(FEB.1):73-76

[16] Zhu J M, Fu H M, Zhang H F, et al. Materials Science Engineering A[J],2010,527(27-28):7210-7214

[17] Zhang C, Wu G F, Dai P Q. Journal of Materials Engineering and Performance[J],2015,24(5):1918-1925

[18] Chen Lijia, Zhou Zheng, Tan Zhen, et al. Journal of Alloys and Compounds[J], 2018, 764:845-852

[19] Wang W R, Wang W L, Wang S C, et al.Intermetallics[J], 2012, 26:44-51

[20] Park S Y, Seo D Y, Kim S W, et al. Intermetallics[J], 2016, 74:8-14

[21] N, Eliaz, Shemesh G, Latanision M R. Engineering Failure Analysis[J], 2002,9:31-43

[22] Thomas G, Brian G. Oxidation of Metals[J],2015,84(8):567-544

[23] Benjamin Grégoire, Montero X, Galetz M C, et al. Corrosion Science[J],2018,141(8.):211-220

[24] Stringer J. Materials Science and Technology[J],1987, 3:482-493

[25] Zhang Shuting(张淑婷), Du Kaiping(杜开平), Ren Xianjing(任先京), et al. Rare Metal Materials and Engineering[J], 2018, 47(9):2652-2656

[26] Zhang Shuting(张淑婷), Du Kaiping(杜开平), Ren Xianjing(任先京), et al. Rare Metal Materials and Engineering[J], 2017(46): 2807-2811

[27] Ma J, Jiang S M, Gong J, et al. Corrosion Science[J],2013, 70(3):29-36

[28] Charng-ChengTsaur, James C R, Yo-Yu Chang. Materials Chemistry and Physics[J],2005, 91(2-3): 330-337

Get Citation

[Zhang Ping, Li Yuantian, Zhang Jinyong, Chen Zheng, Fan Yu, Shen Baolong. Effect of Si Addition on Hot Corrosion Behavior of AlCoCrFeNi High Entropy Alloys[J]. Rare Metal Materials and Engineering,2021,50(10):3640~3647.]
DOI：10.12442/j. issn.1002-185X.20210206

Copy

Article Metrics

Abstract:720
PDF: 1184
HTML: 196
Cited by: 0

History

Received:March 11,2021
Revised:April 08,2021
Adopted:April 13,2021
Online: October 28,2021
Published: October 25,2021

Home

Introduction

Editorial Board

Submission Guideline

Contact Us

中文

Get Citation

Article Metrics

History