Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting
In the present investigation, magnesium strips were produced by twin roll casting (TRC) and melt conditioned twin roll casting (MC-TRC) processes. Detailed optical microscopy studies were carried out on as-cast and homogenized TRC and MC-TRC strips. The results showed uniform, fine and equiaxed grai...
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| Format: | Article |
| Language: | English English |
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Elsevier Ltd
2014
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| Online Access: | http://umpir.ump.edu.my/id/eprint/7741/1/ac.els-cdn.com_S0921509314012623_1-s2.0-S0921509314012623-main.pdf http://umpir.ump.edu.my/id/eprint/7741/4/Effect%20Of%20Melt%20Conditioning%20On%20Heat%20Treatment%20And%20Mechanical%20Properties%20Of%20AZ31%20Alloy%20Strips%20Produced%20By%20Twin%20Roll%20Casting.pdf |
| _version_ | 1796990322283118592 |
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| author | Das, Sanjeev Barekar, NS Fakir, Omer El Wang, Liliang A. K., Prasada Rao Patel, JB Kotadia, HR Bhagurkar, A Dear, John P Fan, Z |
| author_facet | Das, Sanjeev Barekar, NS Fakir, Omer El Wang, Liliang A. K., Prasada Rao Patel, JB Kotadia, HR Bhagurkar, A Dear, John P Fan, Z |
| author_sort | Das, Sanjeev |
| collection | UMP |
| description | In the present investigation, magnesium strips were produced by twin roll casting (TRC) and melt conditioned twin roll casting (MC-TRC) processes. Detailed optical microscopy studies were carried out on as-cast and homogenized TRC and MC-TRC strips. The results showed uniform, fine and equiaxed grain structure was observed for MC-TRC samples in as-cast condition. Whereas, coarse columnar grains with centreline segregation were observed in the case of as-cast TRC samples. The solidi fication
mechanisms for TRC and MC-TRC have been found completely divergent. The homogenized TRC and MC-TRC samples were subjected to tensile test at elevated temperature (250–4001C). At 2501C, MC-TRC sample showed significant improvement in strength and ductility. However, at higher temperatures the tensile properties were almost comparable, despite of TRC samples having larger grains compared to
MC-TRC samples. The mechanism of deformation has been explained by detailed fractures surface and sub-surface analysis carried out by scanning electron and optical microscopy. Homogenized MC-TRC samples were formed (hot stamping) into engineering component without any trace of crack on its surface. Whereas, TRC samples cracked in several places during hot stamping process |
| first_indexed | 2024-03-06T11:49:52Z |
| format | Article |
| id | UMPir7741 |
| institution | Universiti Malaysia Pahang |
| language | English English |
| last_indexed | 2024-03-06T11:49:52Z |
| publishDate | 2014 |
| publisher | Elsevier Ltd |
| record_format | dspace |
| spelling | UMPir77412018-03-12T02:28:09Z http://umpir.ump.edu.my/id/eprint/7741/ Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting Das, Sanjeev Barekar, NS Fakir, Omer El Wang, Liliang A. K., Prasada Rao Patel, JB Kotadia, HR Bhagurkar, A Dear, John P Fan, Z TN Mining engineering. Metallurgy In the present investigation, magnesium strips were produced by twin roll casting (TRC) and melt conditioned twin roll casting (MC-TRC) processes. Detailed optical microscopy studies were carried out on as-cast and homogenized TRC and MC-TRC strips. The results showed uniform, fine and equiaxed grain structure was observed for MC-TRC samples in as-cast condition. Whereas, coarse columnar grains with centreline segregation were observed in the case of as-cast TRC samples. The solidi fication mechanisms for TRC and MC-TRC have been found completely divergent. The homogenized TRC and MC-TRC samples were subjected to tensile test at elevated temperature (250–4001C). At 2501C, MC-TRC sample showed significant improvement in strength and ductility. However, at higher temperatures the tensile properties were almost comparable, despite of TRC samples having larger grains compared to MC-TRC samples. The mechanism of deformation has been explained by detailed fractures surface and sub-surface analysis carried out by scanning electron and optical microscopy. Homogenized MC-TRC samples were formed (hot stamping) into engineering component without any trace of crack on its surface. Whereas, TRC samples cracked in several places during hot stamping process Elsevier Ltd 2014 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/7741/1/ac.els-cdn.com_S0921509314012623_1-s2.0-S0921509314012623-main.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/7741/4/Effect%20Of%20Melt%20Conditioning%20On%20Heat%20Treatment%20And%20Mechanical%20Properties%20Of%20AZ31%20Alloy%20Strips%20Produced%20By%20Twin%20Roll%20Casting.pdf Das, Sanjeev and Barekar, NS and Fakir, Omer El and Wang, Liliang and A. K., Prasada Rao and Patel, JB and Kotadia, HR and Bhagurkar, A and Dear, John P and Fan, Z (2014) Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting. Materials Science and Engineering: A, 620. pp. 223-232. ISSN 0921-5093. (Published) http://dx.doi.org/10.1016/j.msea.2014.10.019 doi:10.1016/j.msea.2014.10.019 |
| spellingShingle | TN Mining engineering. Metallurgy Das, Sanjeev Barekar, NS Fakir, Omer El Wang, Liliang A. K., Prasada Rao Patel, JB Kotadia, HR Bhagurkar, A Dear, John P Fan, Z Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting |
| title | Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting |
| title_full | Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting |
| title_fullStr | Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting |
| title_full_unstemmed | Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting |
| title_short | Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting |
| title_sort | effect of melt conditioning on heat treatment and mechanical properties of az31 alloy strips produced by twin roll casting |
| topic | TN Mining engineering. Metallurgy |
| url | http://umpir.ump.edu.my/id/eprint/7741/1/ac.els-cdn.com_S0921509314012623_1-s2.0-S0921509314012623-main.pdf http://umpir.ump.edu.my/id/eprint/7741/4/Effect%20Of%20Melt%20Conditioning%20On%20Heat%20Treatment%20And%20Mechanical%20Properties%20Of%20AZ31%20Alloy%20Strips%20Produced%20By%20Twin%20Roll%20Casting.pdf |
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