Study on Oxidation Behavior of Co-20Re-25Cr-7Al Alloy at Low Oxygen Pressure of 3.0×10-5Pa

ZHANG Shuai, SUN Haiying, XU Xunhu, XIANG Junhuai, ZHANG Heng, WANG Ling, HU Jiansong, YAN Kai

doi:10.16577/j.issn.1001-1560.2023.0193

Materials Protection >

2023 , Vol. 56 >Issue 8: 103 - 108

DOI: https://doi.org/10.16577/j.issn.1001-1560.2023.0193

Study on Oxidation Behavior of Co-20Re-25Cr-7Al Alloy at Low Oxygen Pressure of 3.0×10^-5Pa

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Jiangxi Key Laboratory of Surface Engineering，School of Materials and Mechanical ＆ Electrical Engineering，Jiangxi Science and Technology Normal University，Nanchang 330013，China

Received date: 2023-02-24

Revised date: 2023-03-12

Accepted date: 2023-04-13

Online published: 2023-08-25

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Abstract

In order to investigate whether adding a small amount of Al in a low oxygen pressure and high temperature environment has a synergistic effect ontheformationof aprotective Cr2O3oxidefilm on Co-Rebased hightemperature alloys，the isothermaloxidation behaviorofthe Co-20Re-25Cr-7Al alloy was studied under 3.0×10-5Pa O2at 1100～1 300 ℃for24h.Resultsshowed thattheoxidation kinetics curve of the alloy conformed to parabolic law quite well，with the value of oxidation activation energy of 242.3 kJ/mol.The oxidation film formed at 1 100～1 300 ℃were very similar and mainly composed of continuous and dense Cr2O3 layer，covered by a small amount of CoO and CoCr2O4 spinelle.The protective Cr2O3 layer could prevent the evaporation of Re element of alloy in the form of ReO3during the oxidation process，and thus provided better protection for the Co-20Re-25Cr-7Al quaternary alloy，as compared with the corresponding Co-20Re-25Cr ternary alloy，thus providing better protection for the alloy.The addition of 7% Al was not enough to result in the selective external oxidation of Al in Co-20Re-25Cr-7Al alloy，thus forming an internal oxidation zone of Al below the outer oxidation film.However，the addition of Al promoted the formation of continuous and dense Cr2O3 layer，and improved the high temperature oxidation resistance of the alloy greatly.The addition of Al and low oxygen pressure showed a synergistic effect on the formation of a protective Cr2O3 layer.

Key words： Co-20Re-25Cr-7Al alloy; high temperature oxidation; low oxygen pressure; Al effect

Cite this article

ZHANG Shuai, SUN Haiying, XU Xunhu, XIANG Junhuai, ZHANG Heng, WANG Ling, HU Jiansong, YAN Kai . Study on Oxidation Behavior of Co-20Re-25Cr-7Al Alloy at Low Oxygen Pressure of 3.0×10^-5Pa[J]. Materials Protection, 2023 , 56(8) : 103 -108 . DOI: 10.16577/j.issn.1001-1560.2023.0193

References

[1] XIANG J H，GESMUNDO F，NIU Y.The oxidation of two ternary Ni-Cu-10 at.% Al alloys in 1 atm of pure O2at 800～900 ℃[J].Corrosion Science，2004，46 (8):2 025-2 039.

[2] 李青，宋尽霞，肖程波，等.一种高W、Mo 含量Ni3Al 基合金的高温氧化行为[J].航空材料学报，2007，27(2):6-7.LI Q，SONG J X，XIAO C B，et al.High Temperature Oxidation Behavior of a Ni3Al Base Alloy Containing High Contents of W and Mo [J].Journal of Aeronautical Materials，2007，27(2): 6-7.

[3] HUANG L，SUN X F，GUAN H R，et al.Oxidation behavior of the single-crystal Ni-base superalloy DD32 in air at 900，1 000 and 1 100 ℃[J].Oxidation of Metals，2006，65(5/6): 403-404.

[4] REN X，WANG F H，WANG X.High-temperature oxidation and hot corrosion behaviours of the NiCr-CrAl coating on a nickel-based superalloy[J].Surface ＆ Coatings Technology，2005，198: 425-426.

[5] 杜洪强，田素贵，于兴福，等.NiCoCrAlYSi 涂层对镍基单晶合金高温氧化特性的影响[J].稀有金属材料与工程，2008，37(9): 1 555-1 556.DU H Q，TIAN S G，YU X F，et al.Influences of NiCoCrAlYSi Coating on High Temperature Oxidation Characteristic of Single Crystal Nickel-Base Superalloy[J].Rare Metal and Engineering，2008，37(9): 1 555-1 556.

[6] PEREPEZKO J H.The hotter the engine，the better[J].Science，2009，326: 1 068-1 069.

[7] MAJUMDAR S，KUMAR A，SCHLIEPHAKE D，et al.Microstructural and micro-mechanical properties of Mo-Si-B alloyed with Y and La[J].Materials Science and Engineering: A，2013，573:257-263.

[8] BEWLAY B P，JACKSON M R，SUBRAMANIAN P R，et al.A review of very-high-temperature Nb-silicide-based composites[J].Metallurgical and Materials Transactions A，2003，34(10): 2 043-2 052.

[9] Rösler J，MUKERJI D，BARANSKI T.Co-Re-based alloys: A new class of high temperature materials[J].Advanced Engineering Materials，2007，9(10): 876-881.

[10] GORR B，TRINDADE V，BURK S，et al.Oxidation Behaviour of Model Cobalt-Rhenium Alloys During Short-Term Exposure to Laboratory Air at Elevated Temperature[J].Oxidation of Metals，2009，71(3): 157-172.

[11] GORR B，BURK S，CHRIST H J.The high-temperature oxidation behavior of Co-Re-Cr-based alloys[J].JOM，2011，63(12): 37-40.

[12] HEILMAIER M，KRÜGER M，SAAGE H et al.Metallic materials for structural applications beyond nickel-based superalloys[J].JOM，2009，61(7): 6 761-6 767.

[13] 王玲，向军淮，张洪华，等.3 种不同Cr 含量Co-20Re-Cr 合金1 000 和1 100 ℃的高温氧化行为[J].中国腐蚀与防护学报，2019，39: 83-88.WANG L，XIANG J H，ZHANG H H，et al.High Temperature Oxidation Behavior of Three Co-20Re-xCr Alloys in 3.04×10-5Pa Oxygen at 1 000 and 1 100 ℃[J].Journal of Chinese Society for Corrosion and Protection，2019，39:83-88.

[14] XU X H，XIANG J H，WEI H，et al.High temperature oxidation behavior of Co-20Re-25Cr-2Si alloy at different oxygen pressures [J].Corrosion Science，2020，168: 108562.

[15] WANG L，GORR B，CHRIST H J，et al.Optimization of Cr-Content for High-Temperature Oxidation Behavior of Co-Re-Si Base Alloys[J].Oxidation of Metals，2013，80:49-59.

[16] DEPKA T，SOMSEN C，EGGELER G，et al.Sigma phase evolution in Co-Re-Cr based alloys at 1 100 ℃[J].Intermetallics，2014，48: 54-61.

[17] WANG L，GORR B，CHRIST H J，et al.The effect of alloyed nickel on the short-term high temperature oxidation behaviour of Co-Re-Cr-based alloys[J].Corrosion Science，2015，93: 19-26.

[18] WEI G，ZHENG W L，ZHENG W，et al.Oxidation behavior of Ni3Al and FeAl intermetallics under low oxygen partial pressures[J].Intermetallics，2002，10(3): 263-270.

[19] KOFSTAD P K，HED A Z.Oxidation of Co-25 w/o Cr at High Temperatures[J].Journal of The Electrochemical Society，1969，116: 1 542.

[20] WOO W，NAEEM M，JEONG J S，et al.Comparison of dislocation density，twin fault probability，and stacking fault energy between CrCoNi and CrCoNiFe medium entropy alloys deformed at 293 and 140 K[J].Materials Science ＆Engineering A，2020，781: 139224.

[21] WAGNER C.Reaction Types During Oxidation of Alloys[J].Journal of The Electrochemical Society，1959，63:771-775.

[22] 王玲.Co-Re-Cr 基超高温合金在1 000～1 300 ℃下的氧化行为[D].南昌:江西科技师范大学，2019.WANG L.Oxidation Behavior of Co-Re-Cr Based Superalloy at 1 000 ～1 300 ℃[D].Nanchang: Jiangxi Science and Technology Normal University，2019.

[23] WOOD G C，STOTT F H.The influence of aluminum additions on the oxidation of Co-Cr alloys at 1 000 and 1 200 ℃[J].Oxidation of Metals，1971，3(4): 365-398.

[24] ARMIJO J S，DOUGLASS D L.The influence of manganese and silicon on the oxidation behavior of Co-20Cr[J].Oxidation of Metals，1971，3(2): 185-202.

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