Effect of Negative - Phase Voltage on the MAO Film Properties of 6005A - T6 Aluminum Alloy for City Rail Car Body
In order to improve the wear resistance of the surface of 6005A - T6 aluminum alloy for city rail car body, the thin film with high wear resistance was prepared by micro - arc oxidation treatment, and the changes of structure characteristics, hardness and wear resistance of micro - arc oxidation lay...
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Editorial Department of Materials Protection
2021-05-01
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| Series: | Cailiao Baohu |
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| Online Access: | http://www.mat-pro.com/fileup/1001-1560/PDF/20210522.pdf |
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| author | PAN Hai - yang, ZHANG Dan - dan, ZHANG En - ping |
| author_facet | PAN Hai - yang, ZHANG Dan - dan, ZHANG En - ping |
| author_sort | PAN Hai - yang, ZHANG Dan - dan, ZHANG En - ping |
| collection | DOAJ |
| description | In order to improve the wear resistance of the surface of 6005A - T6 aluminum alloy for city rail car body, the thin film with high wear resistance was prepared by micro - arc oxidation treatment, and the changes of structure characteristics, hardness and wear resistance of micro - arc oxidation layer caused by negative - phase voltage parameters were analyzed. Results showed that after micro - arc oxidation of the aluminum alloy 6005A - T6, γ - aluminium oxide was formed in the thin film. The formed thin film had an obvious volcanic structure, the overall surface was relatively rough, forming many micron holes with different sizes and a large number of molten particles. The thin film contained the internal dense tissue and the external relatively loose structure, which had a 4 μm dense layer tissue. Micro - arc oxidation increased the hardness of aluminum alloy significantly, and the highest hardness (1 265 HV) was obtained when the negative - phase voltage was at -100 V. When the negative - phase voltage was at -100 V, the friction coefficient was small and relatively stable, showing excellent wear resistance. Besides, the MAO thin film presented the appearance of white strips, and some black lumpy tissues were also observed. Under the condition of -100 V, smaller lumpy areas were formed in the prepared sample. |
| format | Article |
| id | doaj-art-dca665860f5c4ba7bbbf97f8e52e8b8c |
| institution | Matheson Library |
| issn | 1001-1560 |
| language | zho |
| publishDate | 2021-05-01 |
| publisher | Editorial Department of Materials Protection |
| record_format | Article |
| series | Cailiao Baohu |
| spelling | doaj-art-dca665860f5c4ba7bbbf97f8e52e8b8c2025-07-11T06:54:23ZzhoEditorial Department of Materials ProtectionCailiao Baohu1001-15602021-05-0154511612010.16577/j.cnki.42-1215/tb.2021.05.022Effect of Negative - Phase Voltage on the MAO Film Properties of 6005A - T6 Aluminum Alloy for City Rail Car BodyPAN Hai - yang, ZHANG Dan - dan, ZHANG En - ping0(1. Department of Urban Rail Transit, Zhengzhou Polytechnic University, Zhengzhou 450121, China; 2. Zhengzhou Metro Group Co., Ltd., Zhengzhou 450121, China)In order to improve the wear resistance of the surface of 6005A - T6 aluminum alloy for city rail car body, the thin film with high wear resistance was prepared by micro - arc oxidation treatment, and the changes of structure characteristics, hardness and wear resistance of micro - arc oxidation layer caused by negative - phase voltage parameters were analyzed. Results showed that after micro - arc oxidation of the aluminum alloy 6005A - T6, γ - aluminium oxide was formed in the thin film. The formed thin film had an obvious volcanic structure, the overall surface was relatively rough, forming many micron holes with different sizes and a large number of molten particles. The thin film contained the internal dense tissue and the external relatively loose structure, which had a 4 μm dense layer tissue. Micro - arc oxidation increased the hardness of aluminum alloy significantly, and the highest hardness (1 265 HV) was obtained when the negative - phase voltage was at -100 V. When the negative - phase voltage was at -100 V, the friction coefficient was small and relatively stable, showing excellent wear resistance. Besides, the MAO thin film presented the appearance of white strips, and some black lumpy tissues were also observed. Under the condition of -100 V, smaller lumpy areas were formed in the prepared sample.http://www.mat-pro.com/fileup/1001-1560/PDF/20210522.pdfmicro - arc oxidation; aluminum alloy 6005a - t6; frictional wear; negative - phase voltage |
| spellingShingle | PAN Hai - yang, ZHANG Dan - dan, ZHANG En - ping Effect of Negative - Phase Voltage on the MAO Film Properties of 6005A - T6 Aluminum Alloy for City Rail Car Body Cailiao Baohu micro - arc oxidation; aluminum alloy 6005a - t6; frictional wear; negative - phase voltage |
| title | Effect of Negative - Phase Voltage on the MAO Film Properties of 6005A - T6 Aluminum Alloy for City Rail Car Body |
| title_full | Effect of Negative - Phase Voltage on the MAO Film Properties of 6005A - T6 Aluminum Alloy for City Rail Car Body |
| title_fullStr | Effect of Negative - Phase Voltage on the MAO Film Properties of 6005A - T6 Aluminum Alloy for City Rail Car Body |
| title_full_unstemmed | Effect of Negative - Phase Voltage on the MAO Film Properties of 6005A - T6 Aluminum Alloy for City Rail Car Body |
| title_short | Effect of Negative - Phase Voltage on the MAO Film Properties of 6005A - T6 Aluminum Alloy for City Rail Car Body |
| title_sort | effect of negative phase voltage on the mao film properties of 6005a t6 aluminum alloy for city rail car body |
| topic | micro - arc oxidation; aluminum alloy 6005a - t6; frictional wear; negative - phase voltage |
| url | http://www.mat-pro.com/fileup/1001-1560/PDF/20210522.pdf |
| work_keys_str_mv | AT panhaiyangzhangdandanzhangenping effectofnegativephasevoltageonthemaofilmpropertiesof6005at6aluminumalloyforcityrailcarbody |