Micro-mechanism of simultaneous improvement of strength and ductility of squeeze-cast Al–Cu alloy
In this paper, the strength and ductility of Al–Cu–Mn–Ti alloy prepared by squeeze casting have been simultaneously increased after heat treatment. The effects of solution and aging treatment on the microstructure evolution and mechanical properties of squeeze cast Al–Cu alloy are investigated to di...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2022-01, Vol.833, p.142538, Article 142538 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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| creator | Li, Jianyu Lü, Shulin Wu, Shusen Zhao, Dijia Guo, Wei |
| description | In this paper, the strength and ductility of Al–Cu–Mn–Ti alloy prepared by squeeze casting have been simultaneously increased after heat treatment. The effects of solution and aging treatment on the microstructure evolution and mechanical properties of squeeze cast Al–Cu alloy are investigated to discuss its micro-mechanism using various methods, including SEM, XRD, EBSD and TEM. The results show that the Al2Cu phase disappeared completely after solution treatment at 530 °C for 10h. During aging, nano-sized or submicron-sized Al12Mn2Cu precipitates and much smaller nano-sized θ'' phase were uniformly distributed throughout the alloy, and the interface between the two phases and the matrix was coherent. After solution + aging treatment (i.e., T6 treatment) the ultimate tensile strength, yield strength and elongation of the alloy were 445 MPa, 265 MPa and 17.9%, which were increased by 71.2%, 65.6% and 70.5%, respectively, compared with the as-cast alloy. The precipitation strengthening caused by the two kinds of precipitates θ'' and Al12Mn2Cu is the most important factor for the simultaneous increase in the strength and elongation. |
| doi_str_mv | 10.1016/j.msea.2021.142538 |
| format | Article |
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The effects of solution and aging treatment on the microstructure evolution and mechanical properties of squeeze cast Al–Cu alloy are investigated to discuss its micro-mechanism using various methods, including SEM, XRD, EBSD and TEM. The results show that the Al2Cu phase disappeared completely after solution treatment at 530 °C for 10h. During aging, nano-sized or submicron-sized Al12Mn2Cu precipitates and much smaller nano-sized θ'' phase were uniformly distributed throughout the alloy, and the interface between the two phases and the matrix was coherent. After solution + aging treatment (i.e., T6 treatment) the ultimate tensile strength, yield strength and elongation of the alloy were 445 MPa, 265 MPa and 17.9%, which were increased by 71.2%, 65.6% and 70.5%, respectively, compared with the as-cast alloy. The precipitation strengthening caused by the two kinds of precipitates θ'' and Al12Mn2Cu is the most important factor for the simultaneous increase in the strength and elongation.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2021.142538</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Aging ; Aluminum base alloys ; Casting alloys ; Copper ; Ductility ; Elongation ; Heat treating ; Heat treatment ; Manganese ; Mechanical properties ; Micro-mechanism ; Precipitates ; Precipitation hardening ; Precipitation strengthening ; Solution heat treatment ; Squeeze casting ; Titanium base alloys ; Ultimate tensile strength</subject><ispartof>Materials science & engineering. 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A, Structural materials : properties, microstructure and processing</title><description>In this paper, the strength and ductility of Al–Cu–Mn–Ti alloy prepared by squeeze casting have been simultaneously increased after heat treatment. The effects of solution and aging treatment on the microstructure evolution and mechanical properties of squeeze cast Al–Cu alloy are investigated to discuss its micro-mechanism using various methods, including SEM, XRD, EBSD and TEM. The results show that the Al2Cu phase disappeared completely after solution treatment at 530 °C for 10h. During aging, nano-sized or submicron-sized Al12Mn2Cu precipitates and much smaller nano-sized θ'' phase were uniformly distributed throughout the alloy, and the interface between the two phases and the matrix was coherent. After solution + aging treatment (i.e., T6 treatment) the ultimate tensile strength, yield strength and elongation of the alloy were 445 MPa, 265 MPa and 17.9%, which were increased by 71.2%, 65.6% and 70.5%, respectively, compared with the as-cast alloy. The precipitation strengthening caused by the two kinds of precipitates θ'' and Al12Mn2Cu is the most important factor for the simultaneous increase in the strength and elongation.</description><subject>Aging</subject><subject>Aluminum base alloys</subject><subject>Casting alloys</subject><subject>Copper</subject><subject>Ductility</subject><subject>Elongation</subject><subject>Heat treating</subject><subject>Heat treatment</subject><subject>Manganese</subject><subject>Mechanical properties</subject><subject>Micro-mechanism</subject><subject>Precipitates</subject><subject>Precipitation hardening</subject><subject>Precipitation strengthening</subject><subject>Solution heat treatment</subject><subject>Squeeze casting</subject><subject>Titanium base alloys</subject><subject>Ultimate tensile strength</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp9kMtOwzAQRS0EEqXwA6wisU7wO4nEpqp4SUVsYG059oQ6yqPYDlJZ8Q_8IV9C2rJmNYs7986dg9AlwRnBRF43WRdAZxRTkhFOBSuO0IwUOUt5yeQxmuGSklTgkp2isxAajDHhWMyQeXLGD2kHZq17F7pkqJPgurGNuodhDInrNn74gA76uNeih_4trhPd28SOJrrWxe1eeR8BPiE1OsRk0f58fS_HRLftsD1HJ7VuA1z8zTl6vbt9WT6kq-f7x-VilRpGi5jmwpKaWcG4qSvGhWEcGyykzSkXJcEFsJxhXuVaskrLitIaKmG5lLImoCmbo6tD7tR4KhOiaobR99NJReUURgpJimmLHramv0PwUKuNd532W0Ww2sFUjdrBVDuY6gBzMt0cTDD1_3DgVTAOegPWeTBR2cH9Z_8FsuR-3w</recordid><startdate>20220126</startdate><enddate>20220126</enddate><creator>Li, Jianyu</creator><creator>Lü, Shulin</creator><creator>Wu, Shusen</creator><creator>Zhao, Dijia</creator><creator>Guo, Wei</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><orcidid>https://orcid.org/0000-0001-5569-7173</orcidid></search><sort><creationdate>20220126</creationdate><title>Micro-mechanism of simultaneous improvement of strength and ductility of squeeze-cast Al–Cu alloy</title><author>Li, Jianyu ; Lü, Shulin ; Wu, Shusen ; Zhao, Dijia ; Guo, Wei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c328t-75d1f3d534cfb345c340c056d72459108e37304b7a63ba6b22feb5d4666f1ea23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Aging</topic><topic>Aluminum base alloys</topic><topic>Casting alloys</topic><topic>Copper</topic><topic>Ductility</topic><topic>Elongation</topic><topic>Heat treating</topic><topic>Heat treatment</topic><topic>Manganese</topic><topic>Mechanical properties</topic><topic>Micro-mechanism</topic><topic>Precipitates</topic><topic>Precipitation hardening</topic><topic>Precipitation strengthening</topic><topic>Solution heat treatment</topic><topic>Squeeze casting</topic><topic>Titanium base alloys</topic><topic>Ultimate tensile strength</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Jianyu</creatorcontrib><creatorcontrib>Lü, Shulin</creatorcontrib><creatorcontrib>Wu, Shusen</creatorcontrib><creatorcontrib>Zhao, Dijia</creatorcontrib><creatorcontrib>Guo, Wei</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Jianyu</au><au>Lü, Shulin</au><au>Wu, Shusen</au><au>Zhao, Dijia</au><au>Guo, Wei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Micro-mechanism of simultaneous improvement of strength and ductility of squeeze-cast Al–Cu alloy</atitle><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle><date>2022-01-26</date><risdate>2022</risdate><volume>833</volume><spage>142538</spage><pages>142538-</pages><artnum>142538</artnum><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>In this paper, the strength and ductility of Al–Cu–Mn–Ti alloy prepared by squeeze casting have been simultaneously increased after heat treatment. The effects of solution and aging treatment on the microstructure evolution and mechanical properties of squeeze cast Al–Cu alloy are investigated to discuss its micro-mechanism using various methods, including SEM, XRD, EBSD and TEM. The results show that the Al2Cu phase disappeared completely after solution treatment at 530 °C for 10h. During aging, nano-sized or submicron-sized Al12Mn2Cu precipitates and much smaller nano-sized θ'' phase were uniformly distributed throughout the alloy, and the interface between the two phases and the matrix was coherent. After solution + aging treatment (i.e., T6 treatment) the ultimate tensile strength, yield strength and elongation of the alloy were 445 MPa, 265 MPa and 17.9%, which were increased by 71.2%, 65.6% and 70.5%, respectively, compared with the as-cast alloy. The precipitation strengthening caused by the two kinds of precipitates θ'' and Al12Mn2Cu is the most important factor for the simultaneous increase in the strength and elongation.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2021.142538</doi><orcidid>https://orcid.org/0000-0001-5569-7173</orcidid></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Aging Aluminum base alloys Casting alloys Copper Ductility Elongation Heat treating Heat treatment Manganese Mechanical properties Micro-mechanism Precipitates Precipitation hardening Precipitation strengthening Solution heat treatment Squeeze casting Titanium base alloys Ultimate tensile strength |
| title | Micro-mechanism of simultaneous improvement of strength and ductility of squeeze-cast Al–Cu alloy |
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