Preparation and Properties of a Plasma-Sprayed Fe-Cr-B-C Coating
Fe-Cr-B-C wear-resistant coating was prepared by atmosphere plasma spraying. The effects of the spraying current, main gas flow, secondary gas flow, and spraying distance on the microstructure, hardness, and bonding strength of the coating were studied. The results show that the cross-section of the...
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| Veröffentlicht in: | Coatings (Basel) 2022-11, Vol.12 (11), p.1716 |
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| creator | Lu, Jing He, Jiayi Chen, Dong Sun, Chengchuan Li, Yimin Luo, Fenghua |
| description | Fe-Cr-B-C wear-resistant coating was prepared by atmosphere plasma spraying. The effects of the spraying current, main gas flow, secondary gas flow, and spraying distance on the microstructure, hardness, and bonding strength of the coating were studied. The results show that the cross-section of the coating is a typical lamellar structure. There are unmelted particles with high hardness in the Fe-Cr-B-C coating, and the hard phase particles are spherical and dispersed. As a result, the microhardness of the Fe-Cr-B-C coating is relatively uniform, within the range of 820~860 HV0.1. Spraying process parameters significantly affect the bonding strength of the coating, but have little effect on the microhardness. The matrix of the coating is an α-Fe phase and the hard phase is mainly a (Fe, Cr)2(B, C) phase and a (Fe, Cr)3(B, C) phase. Due to the spheroidized coating structure, the wear rate of the FeCrBC coating is only 0.62 × 10−5 mm3/Nm, which is 51% of the 304 stainless steel. The wear mechanism of the Fe-Cr-B-C coating is mainly abrasive wear and fatigue wear. |
| doi_str_mv | 10.3390/coatings12111716 |
| format | Article |
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The effects of the spraying current, main gas flow, secondary gas flow, and spraying distance on the microstructure, hardness, and bonding strength of the coating were studied. The results show that the cross-section of the coating is a typical lamellar structure. There are unmelted particles with high hardness in the Fe-Cr-B-C coating, and the hard phase particles are spherical and dispersed. As a result, the microhardness of the Fe-Cr-B-C coating is relatively uniform, within the range of 820~860 HV0.1. Spraying process parameters significantly affect the bonding strength of the coating, but have little effect on the microhardness. The matrix of the coating is an α-Fe phase and the hard phase is mainly a (Fe, Cr)2(B, C) phase and a (Fe, Cr)3(B, C) phase. Due to the spheroidized coating structure, the wear rate of the FeCrBC coating is only 0.62 × 10−5 mm3/Nm, which is 51% of the 304 stainless steel. The wear mechanism of the Fe-Cr-B-C coating is mainly abrasive wear and fatigue wear.</description><identifier>ISSN: 2079-6412</identifier><identifier>EISSN: 2079-6412</identifier><identifier>DOI: 10.3390/coatings12111716</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Abrasive wear ; Alpha iron ; Bonding strength ; Chromium ; Coatings ; Fatigue wear ; Friction ; Gas flow ; Lamellar structure ; Metal fatigue ; Microhardness ; Morphology ; Plasma ; Plasma spraying ; Process parameters ; Protective coatings ; Spheroidizing ; Stainless steel ; Stainless steels ; Wear mechanisms ; Wear rate ; Wear resistance</subject><ispartof>Coatings (Basel), 2022-11, Vol.12 (11), p.1716</ispartof><rights>COPYRIGHT 2022 MDPI AG</rights><rights>2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c305t-65ef6fa4a65d85c99b758b0b362a40f9b83cf2b1bb1799eca6fe59a264698ccc3</cites><orcidid>0000-0003-2294-5390</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Lu, Jing</creatorcontrib><creatorcontrib>He, Jiayi</creatorcontrib><creatorcontrib>Chen, Dong</creatorcontrib><creatorcontrib>Sun, Chengchuan</creatorcontrib><creatorcontrib>Li, Yimin</creatorcontrib><creatorcontrib>Luo, Fenghua</creatorcontrib><title>Preparation and Properties of a Plasma-Sprayed Fe-Cr-B-C Coating</title><title>Coatings (Basel)</title><description>Fe-Cr-B-C wear-resistant coating was prepared by atmosphere plasma spraying. The effects of the spraying current, main gas flow, secondary gas flow, and spraying distance on the microstructure, hardness, and bonding strength of the coating were studied. The results show that the cross-section of the coating is a typical lamellar structure. There are unmelted particles with high hardness in the Fe-Cr-B-C coating, and the hard phase particles are spherical and dispersed. As a result, the microhardness of the Fe-Cr-B-C coating is relatively uniform, within the range of 820~860 HV0.1. Spraying process parameters significantly affect the bonding strength of the coating, but have little effect on the microhardness. The matrix of the coating is an α-Fe phase and the hard phase is mainly a (Fe, Cr)2(B, C) phase and a (Fe, Cr)3(B, C) phase. Due to the spheroidized coating structure, the wear rate of the FeCrBC coating is only 0.62 × 10−5 mm3/Nm, which is 51% of the 304 stainless steel. The wear mechanism of the Fe-Cr-B-C coating is mainly abrasive wear and fatigue wear.</description><subject>Abrasive wear</subject><subject>Alpha iron</subject><subject>Bonding strength</subject><subject>Chromium</subject><subject>Coatings</subject><subject>Fatigue wear</subject><subject>Friction</subject><subject>Gas flow</subject><subject>Lamellar structure</subject><subject>Metal fatigue</subject><subject>Microhardness</subject><subject>Morphology</subject><subject>Plasma</subject><subject>Plasma spraying</subject><subject>Process parameters</subject><subject>Protective coatings</subject><subject>Spheroidizing</subject><subject>Stainless steel</subject><subject>Stainless steels</subject><subject>Wear mechanisms</subject><subject>Wear rate</subject><subject>Wear resistance</subject><issn>2079-6412</issn><issn>2079-6412</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNpdkM1Lw0AQxRdRsNTePQY8b92P7GbnZg1WhYIF9Rwmm92S0mbjbnrof28kHsSZwwzD-82DR8gtZ0spgd3bgEPb7RIXnPOC6wsyE6wAqnMuLv_s12SR0p6NBVwaDjPysI2uxzjiocuwa7JtDL2LQ-tSFnyG2faA6Yj0vY94dk22drSM9JGWWTl53pArj4fkFr9zTj7XTx_lC928Pb-Wqw21kqmBauW89pijVo1RFqAulKlZLbXAnHmojbRe1LyueQHgLGrvFKDQuQZjrZVzcjf97WP4Ork0VPtwit1oWYkiN6IAwWBULSfVDg-uajsfhoh27MYdWxs659vxvipylYNRoEaATYCNIaXofNXH9ojxXHFW_WRb_c9WfgPAX2x4</recordid><startdate>20221101</startdate><enddate>20221101</enddate><creator>Lu, Jing</creator><creator>He, Jiayi</creator><creator>Chen, Dong</creator><creator>Sun, Chengchuan</creator><creator>Li, Yimin</creator><creator>Luo, Fenghua</creator><general>MDPI AG</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><orcidid>https://orcid.org/0000-0003-2294-5390</orcidid></search><sort><creationdate>20221101</creationdate><title>Preparation and Properties of a Plasma-Sprayed Fe-Cr-B-C Coating</title><author>Lu, Jing ; 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The effects of the spraying current, main gas flow, secondary gas flow, and spraying distance on the microstructure, hardness, and bonding strength of the coating were studied. The results show that the cross-section of the coating is a typical lamellar structure. There are unmelted particles with high hardness in the Fe-Cr-B-C coating, and the hard phase particles are spherical and dispersed. As a result, the microhardness of the Fe-Cr-B-C coating is relatively uniform, within the range of 820~860 HV0.1. Spraying process parameters significantly affect the bonding strength of the coating, but have little effect on the microhardness. The matrix of the coating is an α-Fe phase and the hard phase is mainly a (Fe, Cr)2(B, C) phase and a (Fe, Cr)3(B, C) phase. Due to the spheroidized coating structure, the wear rate of the FeCrBC coating is only 0.62 × 10−5 mm3/Nm, which is 51% of the 304 stainless steel. The wear mechanism of the Fe-Cr-B-C coating is mainly abrasive wear and fatigue wear.</abstract><cop>Basel</cop><pub>MDPI AG</pub><doi>10.3390/coatings12111716</doi><orcidid>https://orcid.org/0000-0003-2294-5390</orcidid><oa>free_for_read</oa></addata></record> |
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| source | MDPI - Multidisciplinary Digital Publishing Institute; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | Abrasive wear Alpha iron Bonding strength Chromium Coatings Fatigue wear Friction Gas flow Lamellar structure Metal fatigue Microhardness Morphology Plasma Plasma spraying Process parameters Protective coatings Spheroidizing Stainless steel Stainless steels Wear mechanisms Wear rate Wear resistance |
| title | Preparation and Properties of a Plasma-Sprayed Fe-Cr-B-C Coating |
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