| Cyclic Oxidation Resistance of a Sputtered Micro-grained Superalloy Film |
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| 作者姓名： | 楼翰一 王福会 夏邦杰 张立新 |
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| 作者单位： | Corrosion Science Laboratory Institute of Corrosion and Protection of Metals，Academia Sinica.Shenyang.110015，China，Corrosion Science Laboratory，Institute of Corrosion and Protection of Metals，Academia Sinica.Shenyang.110015，China，Corrosion Science Laboratory，Institute of Corrosion and Protection of Metals，Academia Sinica.Shenyang.110015，China，Corrosion Science Laboratory，Institute of Corrosion and Protection of Metals，Academia Sinica.Shenyang.110015，China |
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| 摘 要： | The cyclic oxidation resistance of cast Ni-basesuperalloy K38G and its sputtered micro-grainedfilm were studied between 950℃ and room temper-ature in air.The results show that the weight gain ofmicrograined films is much less than that of cast al-loy during cyclic oxidation,and the resistance ofmicro-grained fihns is even better than that of thealuminide coating on the same alloy.On the surfaceof cast alloy K38G,complex oxide scales of Cr_2O_3,TiO_2 and NiCr_2O_4 spinel formed and they beganto spall alter about 30 cycles of test.However,onthe micro-grained films,continuous and thinα-Al_2O_2 scale was formed and did not spallthroughout the cyclic oxidation test.
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| 收稿时间： | 1992-09-28 |
Cyclic Oxidation Resistance of a Sputtered Micro-grained Superalloy Film |
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| LOU Hanyi WANG Fuhui XIA Bangjie ZHANG Lixin Corrosion Science Laboratory.Cyclic Oxidation Resistance of a Sputtered Micro-grained Superalloy Film[J].Journal of Materials Science & Technology,1992,8(5):347-352. |
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| Authors: | LOU Hanyi WANG Fuhui XIA Bangjie ZHANG Lixin Corrosion Science Laboratory |
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| Affiliation: | LOU Hanyi WANG Fuhui XIA Bangjie ZHANG Lixin Corrosion Science Laboratory,Institute of Corrosion and Protection of Metals.Academia Sinica.Shenyang.,China |
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| Abstract: | The cyclic oxidation resistance of cast Ni-base superalloy K38G and its sputtered micro-grained film were studied between 950℃ and room temper- ature in air.The results show that the weight gain of micrograined films is much less than that of cast al- loy during cyclic oxidation,and the resistance of micro-grained fihns is even better than that of the aluminide coating on the same alloy.On the surface of cast alloy K38G,complex oxide scales of Cr_2O_3, TiO_2 and NiCr_2O_4 spinel formed and they began to spall alter about 30 cycles of test.However,on the micro-grained films,continuous and thin α-Al_2O_2 scale was formed and did not spall throughout the cyclic oxidation test. |
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| Keywords: | microcrystal sputtering cyclic oxidation superalloy |
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