Influence of Sr on mechanical properties of Al-2%Si alloys during eutectic solidification
Al-Si alloys have lower hot tearing susceptibility (HTS) than other aluminum alloys. However, hot tearing occurs under certain casting conditions. It is known that the Sr addition reduces the HTS because of the enhancement of crack-healing. Meanwhile, an influence of Sr addition on the tensile stren...
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| Veröffentlicht in: | Journal of Japan Institute of Light Metals 2023/09/15, Vol.73(9), pp.447-454 |
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| container_title | Journal of Japan Institute of Light Metals |
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| creator | Hirano, Rio Ozaki, Shogo Nagata, Yoshihiro Matsushita, Akira Sakamoto, Toshio Orio, Kanta Okimura, Yasuhiko Okane, Toshimitsu Faiz, Muhammad Khairi Yoshida, Makoto |
| description | Al-Si alloys have lower hot tearing susceptibility (HTS) than other aluminum alloys. However, hot tearing occurs under certain casting conditions. It is known that the Sr addition reduces the HTS because of the enhancement of crack-healing. Meanwhile, an influence of Sr addition on the tensile strength, ductility, and viscous properties during eutectic solidification has not yet been clarified. In this study, we investigated the influence of Sr addition on these properties during eutectic solidification. The tensile tests during eutectic solidification were conducted for Al-2Si and Al-2Si-Sr alloys. The results show that the Sr addition did not affect the viscous properties. On the other hand, the tensile strength and elongation during the latter half of eutectic solidification increased by Sr addition. Consequently, the HTS reduction by Sr addition should be attributed to the improvement of ductility. It was suggested that the increase in the elongation by Sr addition should result from the decrease in the tensile stress, which affects the opening and propagation of hot tearing, due to the increase in porosity near the crack. |
| doi_str_mv | 10.2464/jilm.73.447a |
| format | Article |
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However, hot tearing occurs under certain casting conditions. It is known that the Sr addition reduces the HTS because of the enhancement of crack-healing. Meanwhile, an influence of Sr addition on the tensile strength, ductility, and viscous properties during eutectic solidification has not yet been clarified. In this study, we investigated the influence of Sr addition on these properties during eutectic solidification. The tensile tests during eutectic solidification were conducted for Al-2Si and Al-2Si-Sr alloys. The results show that the Sr addition did not affect the viscous properties. On the other hand, the tensile strength and elongation during the latter half of eutectic solidification increased by Sr addition. Consequently, the HTS reduction by Sr addition should be attributed to the improvement of ductility. It was suggested that the increase in the elongation by Sr addition should result from the decrease in the tensile stress, which affects the opening and propagation of hot tearing, due to the increase in porosity near the crack.</description><identifier>ISSN: 0451-5994</identifier><identifier>ISSN: 0368-5306</identifier><identifier>EISSN: 1880-8018</identifier><identifier>EISSN: 2186-618X</identifier><identifier>DOI: 10.2464/jilm.73.447a</identifier><language>eng ; jpn</language><publisher>Tokyo: The Japan Institute of Light Metals</publisher><subject>aluminum alloy ; Aluminum base alloys ; Casting ; Ductility ; Elongation ; eutectic ; Eutectics ; hot tearing ; Mechanical properties ; mechanical property ; Silicon ; Solidification ; strontium ; Tearing ; Tensile strength ; Tensile stress ; Tensile tests</subject><ispartof>Journal of Japan Institute of Light Metals, 2023/09/15, Vol.73(9), pp.447-454</ispartof><rights>2023 by The Japan Institute of Light Metals</rights><rights>Copyright Japan Science and Technology Agency 2023</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c161a-5cd5afa1ee408d6794928c6826db72c47c2c3dc050a9340ee24bc24affc59fd63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,1876,27903,27904</link.rule.ids></links><search><creatorcontrib>Hirano, Rio</creatorcontrib><creatorcontrib>Ozaki, Shogo</creatorcontrib><creatorcontrib>Nagata, Yoshihiro</creatorcontrib><creatorcontrib>Matsushita, Akira</creatorcontrib><creatorcontrib>Sakamoto, Toshio</creatorcontrib><creatorcontrib>Orio, Kanta</creatorcontrib><creatorcontrib>Okimura, Yasuhiko</creatorcontrib><creatorcontrib>Okane, Toshimitsu</creatorcontrib><creatorcontrib>Faiz, Muhammad Khairi</creatorcontrib><creatorcontrib>Yoshida, Makoto</creatorcontrib><title>Influence of Sr on mechanical properties of Al-2%Si alloys during eutectic solidification</title><title>Journal of Japan Institute of Light Metals</title><addtitle>J. Japan Inst. Light Metals</addtitle><description>Al-Si alloys have lower hot tearing susceptibility (HTS) than other aluminum alloys. However, hot tearing occurs under certain casting conditions. It is known that the Sr addition reduces the HTS because of the enhancement of crack-healing. Meanwhile, an influence of Sr addition on the tensile strength, ductility, and viscous properties during eutectic solidification has not yet been clarified. In this study, we investigated the influence of Sr addition on these properties during eutectic solidification. The tensile tests during eutectic solidification were conducted for Al-2Si and Al-2Si-Sr alloys. The results show that the Sr addition did not affect the viscous properties. On the other hand, the tensile strength and elongation during the latter half of eutectic solidification increased by Sr addition. Consequently, the HTS reduction by Sr addition should be attributed to the improvement of ductility. It was suggested that the increase in the elongation by Sr addition should result from the decrease in the tensile stress, which affects the opening and propagation of hot tearing, due to the increase in porosity near the crack.</description><subject>aluminum alloy</subject><subject>Aluminum base alloys</subject><subject>Casting</subject><subject>Ductility</subject><subject>Elongation</subject><subject>eutectic</subject><subject>Eutectics</subject><subject>hot tearing</subject><subject>Mechanical properties</subject><subject>mechanical property</subject><subject>Silicon</subject><subject>Solidification</subject><subject>strontium</subject><subject>Tearing</subject><subject>Tensile strength</subject><subject>Tensile stress</subject><subject>Tensile tests</subject><issn>0451-5994</issn><issn>0368-5306</issn><issn>1880-8018</issn><issn>2186-618X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNo9kLtOwzAUhi0EElXpxgNYQmyk2I6T2GNVcalUiaEwMFmuc1xcuXaxk6FvT6KiLucM_3cu-hC6p2TOeM2f984f5k0557zRV2hChSCFIFRcownhFS0qKfktmuXstoQR3jBZ0Qn6XgXrewgGcLR4k3AM-ADmRwdntMfHFI-QOgd5jBe-YI8bh7X38ZRx2ycXdhj6DkznDM7Ru9bZYbBzMdyhG6t9htl_n6Kv15fP5Xux_nhbLRfrwtCa6qIybaWtpgCciLZuJJdMmFqwut02zPDGMFO2hlREy5ITAMa3hnFtramkbetyih7Oe4dff3vIndrHPoXhpGJCSCEqUbOBejpTJsWcE1h1TO6g00lRokZ_avSnmlKN_gZ8ccb3udM7uMB6cGE8XGA5lqYkktBLNshLCkL5B5J9e-A</recordid><startdate>20230915</startdate><enddate>20230915</enddate><creator>Hirano, Rio</creator><creator>Ozaki, Shogo</creator><creator>Nagata, Yoshihiro</creator><creator>Matsushita, Akira</creator><creator>Sakamoto, Toshio</creator><creator>Orio, Kanta</creator><creator>Okimura, Yasuhiko</creator><creator>Okane, Toshimitsu</creator><creator>Faiz, Muhammad Khairi</creator><creator>Yoshida, Makoto</creator><general>The Japan Institute of Light Metals</general><general>Japan Science and Technology Agency</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20230915</creationdate><title>Influence of Sr on mechanical properties of Al-2%Si alloys during eutectic solidification</title><author>Hirano, Rio ; Ozaki, Shogo ; Nagata, Yoshihiro ; Matsushita, Akira ; Sakamoto, Toshio ; Orio, Kanta ; Okimura, Yasuhiko ; Okane, Toshimitsu ; Faiz, Muhammad Khairi ; Yoshida, Makoto</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c161a-5cd5afa1ee408d6794928c6826db72c47c2c3dc050a9340ee24bc24affc59fd63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng ; jpn</language><creationdate>2023</creationdate><topic>aluminum alloy</topic><topic>Aluminum base alloys</topic><topic>Casting</topic><topic>Ductility</topic><topic>Elongation</topic><topic>eutectic</topic><topic>Eutectics</topic><topic>hot tearing</topic><topic>Mechanical properties</topic><topic>mechanical property</topic><topic>Silicon</topic><topic>Solidification</topic><topic>strontium</topic><topic>Tearing</topic><topic>Tensile strength</topic><topic>Tensile stress</topic><topic>Tensile tests</topic><toplevel>online_resources</toplevel><creatorcontrib>Hirano, Rio</creatorcontrib><creatorcontrib>Ozaki, Shogo</creatorcontrib><creatorcontrib>Nagata, Yoshihiro</creatorcontrib><creatorcontrib>Matsushita, Akira</creatorcontrib><creatorcontrib>Sakamoto, Toshio</creatorcontrib><creatorcontrib>Orio, Kanta</creatorcontrib><creatorcontrib>Okimura, Yasuhiko</creatorcontrib><creatorcontrib>Okane, Toshimitsu</creatorcontrib><creatorcontrib>Faiz, Muhammad Khairi</creatorcontrib><creatorcontrib>Yoshida, Makoto</creatorcontrib><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of Japan Institute of Light Metals</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hirano, Rio</au><au>Ozaki, Shogo</au><au>Nagata, Yoshihiro</au><au>Matsushita, Akira</au><au>Sakamoto, Toshio</au><au>Orio, Kanta</au><au>Okimura, Yasuhiko</au><au>Okane, Toshimitsu</au><au>Faiz, Muhammad Khairi</au><au>Yoshida, Makoto</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of Sr on mechanical properties of Al-2%Si alloys during eutectic solidification</atitle><jtitle>Journal of Japan Institute of Light Metals</jtitle><addtitle>J. Japan Inst. Light Metals</addtitle><date>2023-09-15</date><risdate>2023</risdate><volume>73</volume><issue>9</issue><spage>447</spage><epage>454</epage><pages>447-454</pages><artnum>730901</artnum><issn>0451-5994</issn><issn>0368-5306</issn><eissn>1880-8018</eissn><eissn>2186-618X</eissn><abstract>Al-Si alloys have lower hot tearing susceptibility (HTS) than other aluminum alloys. However, hot tearing occurs under certain casting conditions. It is known that the Sr addition reduces the HTS because of the enhancement of crack-healing. Meanwhile, an influence of Sr addition on the tensile strength, ductility, and viscous properties during eutectic solidification has not yet been clarified. In this study, we investigated the influence of Sr addition on these properties during eutectic solidification. The tensile tests during eutectic solidification were conducted for Al-2Si and Al-2Si-Sr alloys. The results show that the Sr addition did not affect the viscous properties. On the other hand, the tensile strength and elongation during the latter half of eutectic solidification increased by Sr addition. Consequently, the HTS reduction by Sr addition should be attributed to the improvement of ductility. It was suggested that the increase in the elongation by Sr addition should result from the decrease in the tensile stress, which affects the opening and propagation of hot tearing, due to the increase in porosity near the crack.</abstract><cop>Tokyo</cop><pub>The Japan Institute of Light Metals</pub><doi>10.2464/jilm.73.447a</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | aluminum alloy Aluminum base alloys Casting Ductility Elongation eutectic Eutectics hot tearing Mechanical properties mechanical property Silicon Solidification strontium Tearing Tensile strength Tensile stress Tensile tests |
| title | Influence of Sr on mechanical properties of Al-2%Si alloys during eutectic solidification |
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