Effect of Trace Element Hf on the Precipitation Process and Recrystallization Resistance of Al-Er-Zr Alloys
Vickers hardness and electric conductivity measurements as well as micro-structure analysis were used to investigate the effects of trace element Hf atoms on the precipitation and recrystallization resistance in Al-Er-Zr alloys. The results of the present study indicated that the behaviors of precip...
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| description | Vickers hardness and electric conductivity measurements as well as micro-structure analysis were used to investigate the effects of trace element Hf atoms on the precipitation and recrystallization resistance in Al-Er-Zr alloys. The results of the present study indicated that the behaviors of precipitation process in Al-0.04Er-0.08Zr and Al-0.04Er-0.08Zr-0.05Hf (at. %) alloys are similar. When alloys were annealed at 350 °C for 96h, the nanoscale and coherent Al3(Er, Zr) and Al3(Er, Zr, Hf) precipitates form, corresponding to the peak hardness values of 56.2 ± 0.9 (ternary alloy), 58.9 ± 1.5 HV (quaternary alloy), respectively. The higher peak hardness in Al-0.04Er-0.08Zr-0.05Hf alloys mainly benefit from the decomposition of Hf. It was shown that the existence of precipitates could improve the recrystallization resistance obviously. Due to the similar retarding force, recrystallization temperatures of both alloys are almost the same, approximate 450 °C. |
| doi_str_mv | 10.4028/www.scientific.net/MSF.898.3 |
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The results of the present study indicated that the behaviors of precipitation process in Al-0.04Er-0.08Zr and Al-0.04Er-0.08Zr-0.05Hf (at. %) alloys are similar. When alloys were annealed at 350 °C for 96h, the nanoscale and coherent Al3(Er, Zr) and Al3(Er, Zr, Hf) precipitates form, corresponding to the peak hardness values of 56.2 ± 0.9 (ternary alloy), 58.9 ± 1.5 HV (quaternary alloy), respectively. The higher peak hardness in Al-0.04Er-0.08Zr-0.05Hf alloys mainly benefit from the decomposition of Hf. It was shown that the existence of precipitates could improve the recrystallization resistance obviously. Due to the similar retarding force, recrystallization temperatures of both alloys are almost the same, approximate 450 °C.</description><identifier>ISSN: 0255-5476</identifier><identifier>ISSN: 1662-9752</identifier><identifier>EISSN: 1662-9752</identifier><identifier>DOI: 10.4028/www.scientific.net/MSF.898.3</identifier><language>eng</language><publisher>Pfaffikon: Trans Tech Publications Ltd</publisher><subject>Alloying elements ; Alloys ; Annealing ; Decomposition ; Diamond pyramid hardness ; Electrical resistivity ; Hafnium ; Precipitates ; Precipitation ; Precipitation hardening ; Recrystallization ; Retarding ; Structural analysis ; Ternary alloys ; Trace elements ; Zirconium</subject><ispartof>Materials science forum, 2017-06, Vol.898, p.3-8</ispartof><rights>2017 Trans Tech Publications Ltd</rights><rights>Copyright Trans Tech Publications Ltd. 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The results of the present study indicated that the behaviors of precipitation process in Al-0.04Er-0.08Zr and Al-0.04Er-0.08Zr-0.05Hf (at. %) alloys are similar. When alloys were annealed at 350 °C for 96h, the nanoscale and coherent Al3(Er, Zr) and Al3(Er, Zr, Hf) precipitates form, corresponding to the peak hardness values of 56.2 ± 0.9 (ternary alloy), 58.9 ± 1.5 HV (quaternary alloy), respectively. The higher peak hardness in Al-0.04Er-0.08Zr-0.05Hf alloys mainly benefit from the decomposition of Hf. It was shown that the existence of precipitates could improve the recrystallization resistance obviously. Due to the similar retarding force, recrystallization temperatures of both alloys are almost the same, approximate 450 °C.</description><subject>Alloying elements</subject><subject>Alloys</subject><subject>Annealing</subject><subject>Decomposition</subject><subject>Diamond pyramid hardness</subject><subject>Electrical resistivity</subject><subject>Hafnium</subject><subject>Precipitates</subject><subject>Precipitation</subject><subject>Precipitation hardening</subject><subject>Recrystallization</subject><subject>Retarding</subject><subject>Structural analysis</subject><subject>Ternary alloys</subject><subject>Trace elements</subject><subject>Zirconium</subject><issn>0255-5476</issn><issn>1662-9752</issn><issn>1662-9752</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNqNkF1LwzAUhoMoOKf_IaC37ZJ-pC2IMEbnhIljzhtvQkxPWWbXziRjzF_vkQp66UWSw8l5nwMPITechQmL8tHhcAidNtB6UxsdtuBHj8_TMC_yMD4hAy5EFBRZGp2SAYvSNEiTTJyTC-c2jMU852JA3su6Bu1pV9OVVRpo2cAWgXRW066lfg10YUGbnfHKG-wsbKfBOaraii5B26PzqmnMZ_-7BGew0SIIieMmKG3warFouqO7JGe1ahxc_bxD8jItV5NZMH-6f5iM54GORBoHlQZRJSyumKgg0klaVAWP8gySvNapyN94AUkUJ0wALxRPsxwyrfDWXMUJniG57rk7233swXm56fa2xZWSIynLUFCBU7f9lLadcxZqubNmq-xRcia_9UrUK3_1StQrUa_EtIwxftfHvVWt86DXf7b8B_AF0a2L9Q</recordid><startdate>20170619</startdate><enddate>20170619</enddate><creator>Wen, Sheng Ping</creator><creator>Huang, Hui</creator><creator>Wu, Xiao Lan</creator><creator>Liu, Tong Hui</creator><creator>Gao, Kun Yuan</creator><general>Trans Tech Publications Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7SR</scope><scope>7XB</scope><scope>88I</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</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>GNUQQ</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>M2P</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope></search><sort><creationdate>20170619</creationdate><title>Effect of Trace Element Hf on the Precipitation Process and Recrystallization Resistance of Al-Er-Zr Alloys</title><author>Wen, Sheng Ping ; Huang, Hui ; Wu, Xiao Lan ; Liu, Tong Hui ; Gao, Kun Yuan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2653-dce6d403d06de2c459d91287e48fc568b19e423406e19a1578e7ca78ec1a341a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Alloying elements</topic><topic>Alloys</topic><topic>Annealing</topic><topic>Decomposition</topic><topic>Diamond pyramid hardness</topic><topic>Electrical resistivity</topic><topic>Hafnium</topic><topic>Precipitates</topic><topic>Precipitation</topic><topic>Precipitation hardening</topic><topic>Recrystallization</topic><topic>Retarding</topic><topic>Structural analysis</topic><topic>Ternary alloys</topic><topic>Trace elements</topic><topic>Zirconium</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wen, Sheng Ping</creatorcontrib><creatorcontrib>Huang, Hui</creatorcontrib><creatorcontrib>Wu, Xiao Lan</creatorcontrib><creatorcontrib>Liu, Tong Hui</creatorcontrib><creatorcontrib>Gao, Kun Yuan</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Engineered Materials Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Science Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest Central Basic</collection><jtitle>Materials science forum</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wen, Sheng Ping</au><au>Huang, Hui</au><au>Wu, Xiao Lan</au><au>Liu, Tong Hui</au><au>Gao, Kun Yuan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of Trace Element Hf on the Precipitation Process and Recrystallization Resistance of Al-Er-Zr Alloys</atitle><jtitle>Materials science forum</jtitle><date>2017-06-19</date><risdate>2017</risdate><volume>898</volume><spage>3</spage><epage>8</epage><pages>3-8</pages><issn>0255-5476</issn><issn>1662-9752</issn><eissn>1662-9752</eissn><abstract>Vickers hardness and electric conductivity measurements as well as micro-structure analysis were used to investigate the effects of trace element Hf atoms on the precipitation and recrystallization resistance in Al-Er-Zr alloys. The results of the present study indicated that the behaviors of precipitation process in Al-0.04Er-0.08Zr and Al-0.04Er-0.08Zr-0.05Hf (at. %) alloys are similar. When alloys were annealed at 350 °C for 96h, the nanoscale and coherent Al3(Er, Zr) and Al3(Er, Zr, Hf) precipitates form, corresponding to the peak hardness values of 56.2 ± 0.9 (ternary alloy), 58.9 ± 1.5 HV (quaternary alloy), respectively. The higher peak hardness in Al-0.04Er-0.08Zr-0.05Hf alloys mainly benefit from the decomposition of Hf. It was shown that the existence of precipitates could improve the recrystallization resistance obviously. Due to the similar retarding force, recrystallization temperatures of both alloys are almost the same, approximate 450 °C.</abstract><cop>Pfaffikon</cop><pub>Trans Tech Publications Ltd</pub><doi>10.4028/www.scientific.net/MSF.898.3</doi><tpages>6</tpages></addata></record> |
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| subjects | Alloying elements Alloys Annealing Decomposition Diamond pyramid hardness Electrical resistivity Hafnium Precipitates Precipitation Precipitation hardening Recrystallization Retarding Structural analysis Ternary alloys Trace elements Zirconium |
| title | Effect of Trace Element Hf on the Precipitation Process and Recrystallization Resistance of Al-Er-Zr Alloys |
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