Formation mechanism and phase evolution of in situ synthesizing TiC-reinforced 316L stainless steel matrix composites by laser melting deposition

•A novel method “in situ synthesis” based on additive manufacturing was proposed.•The mechanism of TiC formation has been explored based on thermodynamics.•The phase transformation mechanism from γ-Fe to α-Fe phase was investigated.•The grain texture of the γ-Fe matrix was investigated. Different we...

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Veröffentlicht in:Materials letters 2018-04, Vol.217, p.304-307
Hauptverfasser: Wu, C.L., Zhang, S., Zhang, C.H., Zhang, J.B., Liu, Y.
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container_start_page 304
container_title Materials letters
container_volume 217
creator Wu, C.L.
Zhang, S.
Zhang, C.H.
Zhang, J.B.
Liu, Y.
description •A novel method “in situ synthesis” based on additive manufacturing was proposed.•The mechanism of TiC formation has been explored based on thermodynamics.•The phase transformation mechanism from γ-Fe to α-Fe phase was investigated.•The grain texture of the γ-Fe matrix was investigated. Different weight ratios of 316L austenitic stainless steel, Cr3C2 and Ti powders were mixed to synthesize TiC-reinforced Fe-based composites by laser melting deposition. Fine TiC-particles were in situ synthesized through the reaction of Ti with Cr3C2 and were found to be uniformly dispersed in the matrix. The α-Fe phase was precipitated out of the γ-Fe matrix with the addition of Cr3C2 and Ti powders. The mechanism of TiC formation and phase evolution was analyzed based on thermodynamics calculations. The volume fraction and the size of the in situ synthesized TiC were found to affect grain texture of the γ-Fe matrix.
doi_str_mv 10.1016/j.matlet.2018.01.097
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Different weight ratios of 316L austenitic stainless steel, Cr3C2 and Ti powders were mixed to synthesize TiC-reinforced Fe-based composites by laser melting deposition. Fine TiC-particles were in situ synthesized through the reaction of Ti with Cr3C2 and were found to be uniformly dispersed in the matrix. The α-Fe phase was precipitated out of the γ-Fe matrix with the addition of Cr3C2 and Ti powders. The mechanism of TiC formation and phase evolution was analyzed based on thermodynamics calculations. 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Different weight ratios of 316L austenitic stainless steel, Cr3C2 and Ti powders were mixed to synthesize TiC-reinforced Fe-based composites by laser melting deposition. Fine TiC-particles were in situ synthesized through the reaction of Ti with Cr3C2 and were found to be uniformly dispersed in the matrix. The α-Fe phase was precipitated out of the γ-Fe matrix with the addition of Cr3C2 and Ti powders. The mechanism of TiC formation and phase evolution was analyzed based on thermodynamics calculations. The volume fraction and the size of the in situ synthesized TiC were found to affect grain texture of the γ-Fe matrix.</description><subject>Austenitic stainless steels</subject><subject>Chemical synthesis</subject><subject>Composite materials</subject><subject>Deposition</subject><subject>Evolution</subject><subject>In situ synthesis</subject><subject>Laser beam melting</subject><subject>Laser processing</subject><subject>Materials science</subject><subject>Melting</subject><subject>Metal matrix composites</subject><subject>Metallic composites</subject><subject>Phase transformation</subject><subject>Reinforced steel</subject><subject>Stainless steel</subject><subject>Titanium carbide</subject><issn>0167-577X</issn><issn>1873-4979</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp9kM1qGzEUhUVJoY7TN8hC0PVMr-ZPo02hmDgtGLJxoTsha65imRnJlTQmzlv0jSvHXWeli-453-EeQu4ZlAxY9_VQTiqNmMoKWF8CK0HwD2TBel4XjeDihiyyjBct578_kdsYDwDQCGgW5O_ah2y23tEJ9V45Gyeq3ECPexWR4smP89vWG2odjTbNNJ5d2mO0r9Y9061dFQGtMz5oHGjNug2NSVk3Yox5QhxpDgj2hWo_HX0mYKS7Mx0zP-TQMV0wA76tctId-WjUGPHz_3dJfq0ftqsfxebp8efq-6bQDUAquMqHmUbxXSdELxR0FXA2KKHbXgxNW3OuW96w1gjGQbUCeC3ynzG8a9nO1Evy5co9Bv9nxpjkwc_B5UhZQVf3HeurKquaq0oHH2NAI4_BTiqcJQN5KV8e5LV8eSlfApO5_Gz7drVhvuBkMcioLbrckA2okxy8fR_wD43ckb8</recordid><startdate>20180415</startdate><enddate>20180415</enddate><creator>Wu, C.L.</creator><creator>Zhang, S.</creator><creator>Zhang, C.H.</creator><creator>Zhang, J.B.</creator><creator>Liu, Y.</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20180415</creationdate><title>Formation mechanism and phase evolution of in situ synthesizing TiC-reinforced 316L stainless steel matrix composites by laser melting deposition</title><author>Wu, C.L. ; Zhang, S. ; Zhang, C.H. ; Zhang, J.B. ; Liu, Y.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c400t-7a979f4a7b69989a062071da9c589d45377c57415f9170a59073977cff7651bf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Austenitic stainless steels</topic><topic>Chemical synthesis</topic><topic>Composite materials</topic><topic>Deposition</topic><topic>Evolution</topic><topic>In situ synthesis</topic><topic>Laser beam melting</topic><topic>Laser processing</topic><topic>Materials science</topic><topic>Melting</topic><topic>Metal matrix composites</topic><topic>Metallic composites</topic><topic>Phase transformation</topic><topic>Reinforced steel</topic><topic>Stainless steel</topic><topic>Titanium carbide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, C.L.</creatorcontrib><creatorcontrib>Zhang, S.</creatorcontrib><creatorcontrib>Zhang, C.H.</creatorcontrib><creatorcontrib>Zhang, J.B.</creatorcontrib><creatorcontrib>Liu, Y.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wu, C.L.</au><au>Zhang, S.</au><au>Zhang, C.H.</au><au>Zhang, J.B.</au><au>Liu, Y.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Formation mechanism and phase evolution of in situ synthesizing TiC-reinforced 316L stainless steel matrix composites by laser melting deposition</atitle><jtitle>Materials letters</jtitle><date>2018-04-15</date><risdate>2018</risdate><volume>217</volume><spage>304</spage><epage>307</epage><pages>304-307</pages><issn>0167-577X</issn><eissn>1873-4979</eissn><abstract>•A novel method “in situ synthesis” based on additive manufacturing was proposed.•The mechanism of TiC formation has been explored based on thermodynamics.•The phase transformation mechanism from γ-Fe to α-Fe phase was investigated.•The grain texture of the γ-Fe matrix was investigated. Different weight ratios of 316L austenitic stainless steel, Cr3C2 and Ti powders were mixed to synthesize TiC-reinforced Fe-based composites by laser melting deposition. Fine TiC-particles were in situ synthesized through the reaction of Ti with Cr3C2 and were found to be uniformly dispersed in the matrix. The α-Fe phase was precipitated out of the γ-Fe matrix with the addition of Cr3C2 and Ti powders. The mechanism of TiC formation and phase evolution was analyzed based on thermodynamics calculations. The volume fraction and the size of the in situ synthesized TiC were found to affect grain texture of the γ-Fe matrix.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.matlet.2018.01.097</doi><tpages>4</tpages></addata></record>
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subjects Austenitic stainless steels
Chemical synthesis
Composite materials
Deposition
Evolution
In situ synthesis
Laser beam melting
Laser processing
Materials science
Melting
Metal matrix composites
Metallic composites
Phase transformation
Reinforced steel
Stainless steel
Titanium carbide
title Formation mechanism and phase evolution of in situ synthesizing TiC-reinforced 316L stainless steel matrix composites by laser melting deposition
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