{"title":"选择性激光熔化纳米孪晶Cu和原位fe2p增强块状Cu-Fe不混相合金:增强强度和塑性","authors":"Shengfeng Zhou, Shuzhen Zhao, Jianbo Jin, Lai‐Chang Zhang","doi":"10.2139/ssrn.3427483","DOIUrl":null,"url":null,"abstract":"Nanotwinned Cu particles (nt-Cu<sub>p</sub>) and in-situ Fe<sub>2</sub>P particles (Fe<sub>2</sub>P<sub>p</sub>) reinforced Cu-Fe bulk immiscible alloy was produced via selective laser melting. It is characterized by the laminated structure composed of Fe-rich and ε-Cu layers. The Fe-rich layer displays the mixed phases of Fe<sub>2</sub>P/Fe<sub>3</sub>P fibrous structure where α-Fe and nt-Cu<sub>p</sub> are deconcentrated. Interestingly, many nt-Cu<sub>p</sub> (~15 nm) are dispersed inside the nanoscale Fe<sub>2</sub>P<sub>p</sub> (~200 nm), which are embedded within ε-Cu layer. The combination of twin boundaries and Fe<sub>2</sub>P<sub>p</sub> in the bulk immiscible alloy results in enhanced strength and plasticity with ultimate compressive stress of 810 MPa and strain to failure of 21%.","PeriodicalId":18341,"journal":{"name":"Materials Science eJournal","volume":"26 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2019-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Nanotwinned Cu and In-Situ Fe 2p Reinforced Bulk Cu-Fe Immiscible Alloy by Selective Laser Melting: Enhanced Strength and Plasticity\",\"authors\":\"Shengfeng Zhou, Shuzhen Zhao, Jianbo Jin, Lai‐Chang Zhang\",\"doi\":\"10.2139/ssrn.3427483\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Nanotwinned Cu particles (nt-Cu<sub>p</sub>) and in-situ Fe<sub>2</sub>P particles (Fe<sub>2</sub>P<sub>p</sub>) reinforced Cu-Fe bulk immiscible alloy was produced via selective laser melting. It is characterized by the laminated structure composed of Fe-rich and ε-Cu layers. The Fe-rich layer displays the mixed phases of Fe<sub>2</sub>P/Fe<sub>3</sub>P fibrous structure where α-Fe and nt-Cu<sub>p</sub> are deconcentrated. Interestingly, many nt-Cu<sub>p</sub> (~15 nm) are dispersed inside the nanoscale Fe<sub>2</sub>P<sub>p</sub> (~200 nm), which are embedded within ε-Cu layer. The combination of twin boundaries and Fe<sub>2</sub>P<sub>p</sub> in the bulk immiscible alloy results in enhanced strength and plasticity with ultimate compressive stress of 810 MPa and strain to failure of 21%.\",\"PeriodicalId\":18341,\"journal\":{\"name\":\"Materials Science eJournal\",\"volume\":\"26 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-07-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Science eJournal\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2139/ssrn.3427483\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Science eJournal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2139/ssrn.3427483","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Nanotwinned Cu and In-Situ Fe 2p Reinforced Bulk Cu-Fe Immiscible Alloy by Selective Laser Melting: Enhanced Strength and Plasticity
Nanotwinned Cu particles (nt-Cup) and in-situ Fe2P particles (Fe2Pp) reinforced Cu-Fe bulk immiscible alloy was produced via selective laser melting. It is characterized by the laminated structure composed of Fe-rich and ε-Cu layers. The Fe-rich layer displays the mixed phases of Fe2P/Fe3P fibrous structure where α-Fe and nt-Cup are deconcentrated. Interestingly, many nt-Cup (~15 nm) are dispersed inside the nanoscale Fe2Pp (~200 nm), which are embedded within ε-Cu layer. The combination of twin boundaries and Fe2Pp in the bulk immiscible alloy results in enhanced strength and plasticity with ultimate compressive stress of 810 MPa and strain to failure of 21%.
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