Fabrication of Ti–Al coatings by mechanical alloying method
By means of the mechanical alloying (MA) method, Al and Ti+Al coatings were deposited on Ti alloy substrates. During the mechano-activation processing, the substrate surface was impacted by a large number of flying balls along with particles of powder. The repeated ball collisions with the substrate...
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| Veröffentlicht in: | Surface & coatings technology 2006-12, Vol.201 (6), p.3235-3245 |
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| creator | Romankov, S. Sha, W. Kaloshkin, S.D. Kaevitser, K. |
| description | By means of the mechanical alloying (MA) method, Al and Ti+Al coatings were deposited on Ti alloy substrates. During the mechano-activation processing, the substrate surface was impacted by a large number of flying balls along with particles of powder. The repeated ball collisions with the substrate resulted in the deposition of powder on its surface. MA technique produced Ti+Al coating with a thickness of 200 μm and Al one with a thickness of 50 μm after 2 h milling at room temperature. The as-synthesized coatings showed structures with high apparent density and free of porosity. The surface morphology of the MA-coatings was very rough. Annealing treatment led to the leveling of this uneven morphology. Annealing at temperatures ranging between 600 °C and 1100 °C gave different aluminide phases on the samples. In the case of Al coating, Al3Ti and Ti3Al compound were observed upon heating up to 1100 °C. In the case of Ti+Al coating, Al3Ti, Al2Ti, TiAl and Ti3Al were formed on the surface. |
| doi_str_mv | 10.1016/j.surfcoat.2006.06.044 |
| format | Article |
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During the mechano-activation processing, the substrate surface was impacted by a large number of flying balls along with particles of powder. The repeated ball collisions with the substrate resulted in the deposition of powder on its surface. MA technique produced Ti+Al coating with a thickness of 200 μm and Al one with a thickness of 50 μm after 2 h milling at room temperature. The as-synthesized coatings showed structures with high apparent density and free of porosity. The surface morphology of the MA-coatings was very rough. Annealing treatment led to the leveling of this uneven morphology. Annealing at temperatures ranging between 600 °C and 1100 °C gave different aluminide phases on the samples. In the case of Al coating, Al3Ti and Ti3Al compound were observed upon heating up to 1100 °C. 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During the mechano-activation processing, the substrate surface was impacted by a large number of flying balls along with particles of powder. The repeated ball collisions with the substrate resulted in the deposition of powder on its surface. MA technique produced Ti+Al coating with a thickness of 200 μm and Al one with a thickness of 50 μm after 2 h milling at room temperature. The as-synthesized coatings showed structures with high apparent density and free of porosity. The surface morphology of the MA-coatings was very rough. Annealing treatment led to the leveling of this uneven morphology. Annealing at temperatures ranging between 600 °C and 1100 °C gave different aluminide phases on the samples. In the case of Al coating, Al3Ti and Ti3Al compound were observed upon heating up to 1100 °C. In the case of Ti+Al coating, Al3Ti, Al2Ti, TiAl and Ti3Al were formed on the surface.</description><subject>Coating</subject><subject>Mechanical alloying</subject><subject>Microstructure</subject><subject>Phase transformation</subject><subject>Titanium alloys</subject><subject>Titanium aluminides</subject><issn>0257-8972</issn><issn>1879-3347</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqNkM1KAzEUhYMoWKuvILNyN2N-J5OFYClWBcFNXYdM5samTCc1mQrd-Q6-oU_iDNW1woELh-8cuAehS4ILgkl5vS7SLjobTF9QjMtiFOdHaEIqqXLGuDxGE0yFzCsl6Sk6S2mNMSZS8Qm6WZg6emt6H7osuGzpvz4-Z2021vnuNWX1PtuAXZlugNrMtG3YD_7g9avQnKMTZ9oEFz93il4Wd8v5Q_70fP84nz3llldVnxPGHAXqGiDWWJCWgqsFxgYEk0pyZkVJLBs8aBQoBo2onWQllbasjVRsiq4OvdsY3naQer3xyULbmg7CLmmqBMGlYP8AKeMCiwEsD6CNIaUITm-j35i41wTrcVa91r-z6nFWPYrzIXh7CMLw77uHqJP10FlofATb6yb4vyq-AemVhek</recordid><startdate>20061204</startdate><enddate>20061204</enddate><creator>Romankov, S.</creator><creator>Sha, W.</creator><creator>Kaloshkin, S.D.</creator><creator>Kaevitser, K.</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>7QF</scope><scope>7SR</scope><scope>8BQ</scope><scope>JG9</scope></search><sort><creationdate>20061204</creationdate><title>Fabrication of Ti–Al coatings by mechanical alloying method</title><author>Romankov, S. ; Sha, W. ; Kaloshkin, S.D. ; Kaevitser, K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c488t-133f2e2fde1cace7c2efb500ae5379743c561c3fb5ed9e93ed5bf73627c6ba793</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Coating</topic><topic>Mechanical alloying</topic><topic>Microstructure</topic><topic>Phase transformation</topic><topic>Titanium alloys</topic><topic>Titanium aluminides</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Romankov, S.</creatorcontrib><creatorcontrib>Sha, W.</creatorcontrib><creatorcontrib>Kaloshkin, S.D.</creatorcontrib><creatorcontrib>Kaevitser, K.</creatorcontrib><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aluminium Industry Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Materials Research Database</collection><jtitle>Surface & coatings technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Romankov, S.</au><au>Sha, W.</au><au>Kaloshkin, S.D.</au><au>Kaevitser, K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fabrication of Ti–Al coatings by mechanical alloying method</atitle><jtitle>Surface & coatings technology</jtitle><date>2006-12-04</date><risdate>2006</risdate><volume>201</volume><issue>6</issue><spage>3235</spage><epage>3245</epage><pages>3235-3245</pages><issn>0257-8972</issn><eissn>1879-3347</eissn><abstract>By means of the mechanical alloying (MA) method, Al and Ti+Al coatings were deposited on Ti alloy substrates. During the mechano-activation processing, the substrate surface was impacted by a large number of flying balls along with particles of powder. The repeated ball collisions with the substrate resulted in the deposition of powder on its surface. MA technique produced Ti+Al coating with a thickness of 200 μm and Al one with a thickness of 50 μm after 2 h milling at room temperature. The as-synthesized coatings showed structures with high apparent density and free of porosity. The surface morphology of the MA-coatings was very rough. Annealing treatment led to the leveling of this uneven morphology. Annealing at temperatures ranging between 600 °C and 1100 °C gave different aluminide phases on the samples. In the case of Al coating, Al3Ti and Ti3Al compound were observed upon heating up to 1100 °C. 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| ispartof | Surface & coatings technology, 2006-12, Vol.201 (6), p.3235-3245 |
| issn | 0257-8972 1879-3347 |
| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Coating Mechanical alloying Microstructure Phase transformation Titanium alloys Titanium aluminides |
| title | Fabrication of Ti–Al coatings by mechanical alloying method |
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