Microstructural and tribological characterization of NiAl matrix self-lubricating composite coatings by atmospheric plasma spraying
The NiAl-Mo-Ag and NiAl-Cr2O3-Mo-Ag composite coatings were fabricated by atmospheric plasma spraying with the substrate material of Inconel 718. The effect of heat treatment on the microstructure, adhesive strength, microhardness and tribological properties of NiAl-Cr2O3-Mo-Ag composite coating was...
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| Veröffentlicht in: | Tribology international 2017-05, Vol.109, p.563-570 |
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| creator | Li, Bo Jia, Junhong Gao, Yimin Han, Minmin Wang, Wenzhen |
| description | The NiAl-Mo-Ag and NiAl-Cr2O3-Mo-Ag composite coatings were fabricated by atmospheric plasma spraying with the substrate material of Inconel 718. The effect of heat treatment on the microstructure, adhesive strength, microhardness and tribological properties of NiAl-Cr2O3-Mo-Ag composite coating was investigated. The heat treatment temperatures were chosen as 400, 500 and 600°C. The composition and microstructure of composite coatings were analyzed by X-ray diffraction (XRD), scanning election microscopy (SEM) and transmission electron microscopy (TEM). The results show that the addition of Cr2O3 could effectively reduce the wear rate of NiAl-Mo-Ag composite coating. The adhesive strength, microhardness and tribological properties of NiAl-Cr2O3-Mo-Ag composite coating were improved by heat treatment. After 500°C heat treatment, the microstructure of composite coating became more homogeneous and the coating had the highest adhesive strength, microhardness and the best tribological properties. The sliding process could promote the silver, nickel and molybdenum occur tribo-chemical reaction to form silver molybdates and nickel molybdates lubricating films which were responsible for the good tribological properties of composite coatings at elevated temperatures.
•Addition of Cr2O3 could effectively reduce the wear rate of NiAl-Mo-Ag composite coating.•Heat treatment could effectively improve the microhardness, adhesive strength and tribological properties of composite coating.•The microstructure of the composite coating became more homogeneous after heat treated at 500°C.•The coating shown the highest hardness and adhesive strength and the best tribological properties after 500°C heat treatment. |
| doi_str_mv | 10.1016/j.triboint.2017.01.031 |
| format | Article |
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•Addition of Cr2O3 could effectively reduce the wear rate of NiAl-Mo-Ag composite coating.•Heat treatment could effectively improve the microhardness, adhesive strength and tribological properties of composite coating.•The microstructure of the composite coating became more homogeneous after heat treated at 500°C.•The coating shown the highest hardness and adhesive strength and the best tribological properties after 500°C heat treatment.</description><identifier>ISSN: 0301-679X</identifier><identifier>EISSN: 1879-2464</identifier><identifier>DOI: 10.1016/j.triboint.2017.01.031</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Adhesive strength ; Aluminum alloys ; Atmospheric plasma spraying ; Chromium oxides ; Coating effects ; Elevated temperature ; Heat treating ; Heat treatment ; Intermetallic compounds ; Lubrication ; Mechanical properties ; Microhardness ; Microstructure ; Molybdates ; Molybdenum ; Nickel aluminides ; Nickel base alloys ; Nickel compounds ; Plasma spraying ; Scanning electron microscopy ; Self lubricating materials ; Silver ; Studies ; Superalloys ; Tribological properties ; Tribology ; Wear rate ; Wear resistance ; X-ray diffraction</subject><ispartof>Tribology international, 2017-05, Vol.109, p.563-570</ispartof><rights>2017</rights><rights>Copyright Elsevier BV May 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c255t-6e53bfd16a3bb063e13e04298edd391d125b59880eeb65dc1d29ef07c824faab3</citedby><cites>FETCH-LOGICAL-c255t-6e53bfd16a3bb063e13e04298edd391d125b59880eeb65dc1d29ef07c824faab3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.triboint.2017.01.031$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3541,27915,27916,45986</link.rule.ids></links><search><creatorcontrib>Li, Bo</creatorcontrib><creatorcontrib>Jia, Junhong</creatorcontrib><creatorcontrib>Gao, Yimin</creatorcontrib><creatorcontrib>Han, Minmin</creatorcontrib><creatorcontrib>Wang, Wenzhen</creatorcontrib><title>Microstructural and tribological characterization of NiAl matrix self-lubricating composite coatings by atmospheric plasma spraying</title><title>Tribology international</title><description>The NiAl-Mo-Ag and NiAl-Cr2O3-Mo-Ag composite coatings were fabricated by atmospheric plasma spraying with the substrate material of Inconel 718. The effect of heat treatment on the microstructure, adhesive strength, microhardness and tribological properties of NiAl-Cr2O3-Mo-Ag composite coating was investigated. The heat treatment temperatures were chosen as 400, 500 and 600°C. The composition and microstructure of composite coatings were analyzed by X-ray diffraction (XRD), scanning election microscopy (SEM) and transmission electron microscopy (TEM). The results show that the addition of Cr2O3 could effectively reduce the wear rate of NiAl-Mo-Ag composite coating. The adhesive strength, microhardness and tribological properties of NiAl-Cr2O3-Mo-Ag composite coating were improved by heat treatment. After 500°C heat treatment, the microstructure of composite coating became more homogeneous and the coating had the highest adhesive strength, microhardness and the best tribological properties. The sliding process could promote the silver, nickel and molybdenum occur tribo-chemical reaction to form silver molybdates and nickel molybdates lubricating films which were responsible for the good tribological properties of composite coatings at elevated temperatures.
•Addition of Cr2O3 could effectively reduce the wear rate of NiAl-Mo-Ag composite coating.•Heat treatment could effectively improve the microhardness, adhesive strength and tribological properties of composite coating.•The microstructure of the composite coating became more homogeneous after heat treated at 500°C.•The coating shown the highest hardness and adhesive strength and the best tribological properties after 500°C heat treatment.</description><subject>Adhesive strength</subject><subject>Aluminum alloys</subject><subject>Atmospheric plasma spraying</subject><subject>Chromium oxides</subject><subject>Coating effects</subject><subject>Elevated temperature</subject><subject>Heat treating</subject><subject>Heat treatment</subject><subject>Intermetallic compounds</subject><subject>Lubrication</subject><subject>Mechanical properties</subject><subject>Microhardness</subject><subject>Microstructure</subject><subject>Molybdates</subject><subject>Molybdenum</subject><subject>Nickel aluminides</subject><subject>Nickel base alloys</subject><subject>Nickel compounds</subject><subject>Plasma spraying</subject><subject>Scanning electron microscopy</subject><subject>Self lubricating materials</subject><subject>Silver</subject><subject>Studies</subject><subject>Superalloys</subject><subject>Tribological properties</subject><subject>Tribology</subject><subject>Wear rate</subject><subject>Wear resistance</subject><subject>X-ray diffraction</subject><issn>0301-679X</issn><issn>1879-2464</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqFkEtP3TAQhS1UJG5p_0Jlqeuk4zgv74oQpZWgbEBiZ_kxAV8lcbAd1Nstf7y-XLpmNaOZc85oPkK-MCgZsPbbtkzBae_mVFbAuhJYCZwdkQ3rO1FUdVt_IBvgwIq2E_cn5GOMWwDoatFtyMu1M8HHFFaT1qBGqmZLX_NG_-BMHphHFZRJGNxflZyfqR_ob3c20kll3R8acRyKcdUhq5ObH6jx0-KjS5i710mkekdVmnxcHnOMocuo4qRoXILa5f0ncjyoMeLnt3pK7n5c3J7_LK5uLn-dn10VpmqaVLTYcD1Y1iquNbQcGUeoK9GjtVwwy6pGN6LvAVG3jTXMVgIH6Exf1YNSmp-Sr4fcJfinFWOSW7-GOZ-UTDQcRMd4lVXtQbXnEgMOcgluUmEnGcg9cLmV_4HLPXAJTGbg2fj9YMT8w7PDIKNxOBu0LqBJ0nr3XsQ_QnuR5w</recordid><startdate>20170501</startdate><enddate>20170501</enddate><creator>Li, Bo</creator><creator>Jia, Junhong</creator><creator>Gao, Yimin</creator><creator>Han, Minmin</creator><creator>Wang, Wenzhen</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20170501</creationdate><title>Microstructural and tribological characterization of NiAl matrix self-lubricating composite coatings by atmospheric plasma spraying</title><author>Li, Bo ; Jia, Junhong ; Gao, Yimin ; Han, Minmin ; Wang, Wenzhen</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c255t-6e53bfd16a3bb063e13e04298edd391d125b59880eeb65dc1d29ef07c824faab3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Adhesive strength</topic><topic>Aluminum alloys</topic><topic>Atmospheric plasma spraying</topic><topic>Chromium oxides</topic><topic>Coating effects</topic><topic>Elevated temperature</topic><topic>Heat treating</topic><topic>Heat treatment</topic><topic>Intermetallic compounds</topic><topic>Lubrication</topic><topic>Mechanical properties</topic><topic>Microhardness</topic><topic>Microstructure</topic><topic>Molybdates</topic><topic>Molybdenum</topic><topic>Nickel aluminides</topic><topic>Nickel base alloys</topic><topic>Nickel compounds</topic><topic>Plasma spraying</topic><topic>Scanning electron microscopy</topic><topic>Self lubricating materials</topic><topic>Silver</topic><topic>Studies</topic><topic>Superalloys</topic><topic>Tribological properties</topic><topic>Tribology</topic><topic>Wear rate</topic><topic>Wear resistance</topic><topic>X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Bo</creatorcontrib><creatorcontrib>Jia, Junhong</creatorcontrib><creatorcontrib>Gao, Yimin</creatorcontrib><creatorcontrib>Han, Minmin</creatorcontrib><creatorcontrib>Wang, Wenzhen</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Tribology international</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Bo</au><au>Jia, Junhong</au><au>Gao, Yimin</au><au>Han, Minmin</au><au>Wang, Wenzhen</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microstructural and tribological characterization of NiAl matrix self-lubricating composite coatings by atmospheric plasma spraying</atitle><jtitle>Tribology international</jtitle><date>2017-05-01</date><risdate>2017</risdate><volume>109</volume><spage>563</spage><epage>570</epage><pages>563-570</pages><issn>0301-679X</issn><eissn>1879-2464</eissn><abstract>The NiAl-Mo-Ag and NiAl-Cr2O3-Mo-Ag composite coatings were fabricated by atmospheric plasma spraying with the substrate material of Inconel 718. The effect of heat treatment on the microstructure, adhesive strength, microhardness and tribological properties of NiAl-Cr2O3-Mo-Ag composite coating was investigated. The heat treatment temperatures were chosen as 400, 500 and 600°C. The composition and microstructure of composite coatings were analyzed by X-ray diffraction (XRD), scanning election microscopy (SEM) and transmission electron microscopy (TEM). The results show that the addition of Cr2O3 could effectively reduce the wear rate of NiAl-Mo-Ag composite coating. The adhesive strength, microhardness and tribological properties of NiAl-Cr2O3-Mo-Ag composite coating were improved by heat treatment. After 500°C heat treatment, the microstructure of composite coating became more homogeneous and the coating had the highest adhesive strength, microhardness and the best tribological properties. The sliding process could promote the silver, nickel and molybdenum occur tribo-chemical reaction to form silver molybdates and nickel molybdates lubricating films which were responsible for the good tribological properties of composite coatings at elevated temperatures.
•Addition of Cr2O3 could effectively reduce the wear rate of NiAl-Mo-Ag composite coating.•Heat treatment could effectively improve the microhardness, adhesive strength and tribological properties of composite coating.•The microstructure of the composite coating became more homogeneous after heat treated at 500°C.•The coating shown the highest hardness and adhesive strength and the best tribological properties after 500°C heat treatment.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.triboint.2017.01.031</doi><tpages>8</tpages></addata></record> |
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| subjects | Adhesive strength Aluminum alloys Atmospheric plasma spraying Chromium oxides Coating effects Elevated temperature Heat treating Heat treatment Intermetallic compounds Lubrication Mechanical properties Microhardness Microstructure Molybdates Molybdenum Nickel aluminides Nickel base alloys Nickel compounds Plasma spraying Scanning electron microscopy Self lubricating materials Silver Studies Superalloys Tribological properties Tribology Wear rate Wear resistance X-ray diffraction |
| title | Microstructural and tribological characterization of NiAl matrix self-lubricating composite coatings by atmospheric plasma spraying |
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