Microstructural and Fractographic Analysis of CuAlNi Shape Memory Alloy before and after Heat Treatment
The paper presents comparison of microstructure and fracture surface morphology of the CuAlNi shape memory alloy (SMA) after different heat treatment procedures. The investigation was performed on samples in as-cast state and heat treated states (solution annealing at temperatures of 850 °C / 60’ /...
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| Veröffentlicht in: | Diffusion and defect data. Solid state data. Pt. A, Defect and diffusion forum Defect and diffusion forum, 2020-11, Vol.405, p.100-106 |
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| container_title | Diffusion and defect data. Solid state data. Pt. A, Defect and diffusion forum |
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| creator | Ivanić, Ivana Gojić, Mirko Kožuh, Stjepan Kosec, Borut |
| description | The paper presents comparison of microstructure and fracture surface morphology of the CuAlNi shape memory alloy (SMA) after different heat treatment procedures. The investigation was performed on samples in as-cast state and heat treated states (solution annealing at temperatures of 850 °C / 60’ / H2O and 920 °C / 60’ / H2O along with tempering at two different temperature 150 °C / 60’ / H2O and 300 °C / 60’ / H2O). The microstructure of the samples was examined by optical (OM) and scanning electron microscope (SEM) equipped with device for EDS analysis. The obtained fracture surfaces were examined by SEM. Optical and scanning electron microscopy showed martensitic microstructure in all investigated samples. However, the fractographic analysis of samples after tensile testing reveals significant changes in fracture mechanism. In both solution annealed states the results shows transgranular type of fracture, but after tempering at two different temperatures the difference is obvious. After tempering at 150 °C, along with transgranular type of fracture appear some areas with intergranular type of fracture. After tempering at 300 °C, fracture surface reveals completely intergranular type of fracture. |
| doi_str_mv | 10.4028/www.scientific.net/DDF.405.100 |
| format | Article |
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The investigation was performed on samples in as-cast state and heat treated states (solution annealing at temperatures of 850 °C / 60’ / H2O and 920 °C / 60’ / H2O along with tempering at two different temperature 150 °C / 60’ / H2O and 300 °C / 60’ / H2O). The microstructure of the samples was examined by optical (OM) and scanning electron microscope (SEM) equipped with device for EDS analysis. The obtained fracture surfaces were examined by SEM. Optical and scanning electron microscopy showed martensitic microstructure in all investigated samples. However, the fractographic analysis of samples after tensile testing reveals significant changes in fracture mechanism. In both solution annealed states the results shows transgranular type of fracture, but after tempering at two different temperatures the difference is obvious. After tempering at 150 °C, along with transgranular type of fracture appear some areas with intergranular type of fracture. After tempering at 300 °C, fracture surface reveals completely intergranular type of fracture.</description><identifier>ISSN: 1012-0386</identifier><identifier>ISSN: 1662-9507</identifier><identifier>EISSN: 1662-9507</identifier><identifier>DOI: 10.4028/www.scientific.net/DDF.405.100</identifier><language>eng</language><publisher>Zurich: Trans Tech Publications Ltd</publisher><subject>Annealing ; Electron microscopes ; Fracture mechanics ; Fracture surfaces ; Heat treating ; Heat treatment ; Intergranular fracture ; Martensitic transformations ; Microstructure ; Morphology ; Scanning electron microscopy ; Shape memory alloys ; Solution annealing ; Tempering</subject><ispartof>Diffusion and defect data. Solid state data. Pt. A, Defect and diffusion forum, 2020-11, Vol.405, p.100-106</ispartof><rights>2020 Trans Tech Publications Ltd</rights><rights>Copyright Trans Tech Publications Ltd. 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A, Defect and diffusion forum</title><description>The paper presents comparison of microstructure and fracture surface morphology of the CuAlNi shape memory alloy (SMA) after different heat treatment procedures. The investigation was performed on samples in as-cast state and heat treated states (solution annealing at temperatures of 850 °C / 60’ / H2O and 920 °C / 60’ / H2O along with tempering at two different temperature 150 °C / 60’ / H2O and 300 °C / 60’ / H2O). The microstructure of the samples was examined by optical (OM) and scanning electron microscope (SEM) equipped with device for EDS analysis. The obtained fracture surfaces were examined by SEM. Optical and scanning electron microscopy showed martensitic microstructure in all investigated samples. However, the fractographic analysis of samples after tensile testing reveals significant changes in fracture mechanism. In both solution annealed states the results shows transgranular type of fracture, but after tempering at two different temperatures the difference is obvious. After tempering at 150 °C, along with transgranular type of fracture appear some areas with intergranular type of fracture. After tempering at 300 °C, fracture surface reveals completely intergranular type of fracture.</description><subject>Annealing</subject><subject>Electron microscopes</subject><subject>Fracture mechanics</subject><subject>Fracture surfaces</subject><subject>Heat treating</subject><subject>Heat treatment</subject><subject>Intergranular fracture</subject><subject>Martensitic transformations</subject><subject>Microstructure</subject><subject>Morphology</subject><subject>Scanning electron microscopy</subject><subject>Shape memory alloys</subject><subject>Solution annealing</subject><subject>Tempering</subject><issn>1012-0386</issn><issn>1662-9507</issn><issn>1662-9507</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqNkFFPwjAQxxejiYh-hyYmvg3aruvGi3FBERPQB_G5uZUrjIwN2y6Eb28RE159ubvk_ve_u18UPTA6EJTnw_1-P3C6wsZXptKDBv3w-XkSeumAUXoR9ZiUPB6lNLsMNWU8pkkur6Mb5zaUJixnohet5pW2rfO2076zUBNolmRiQft2ZWG3rjQpGqgPrnKkNWTcFfV7RT7XsEMyx21rD6So6_ZASjStxd9xMB4tmSJ4srAhbsOJt9GVgdrh3V_uR1-Tl8V4Gs8-Xt_GxSzWPGM0BqEph9xkuEw1Z5IhQMKBcZkkqDUwIzUVZWZy4DqDUkICJaIcJaOSCYZJP7o_-e5s-92h82rTdjZ84BQXkos8E4IG1eNJdfzdWTRqZ6st2INiVB3hqgBXneGqAFcFuKGXBsnR4Olk4C00zqNen_f80-IHacmMow</recordid><startdate>20201101</startdate><enddate>20201101</enddate><creator>Ivanić, Ivana</creator><creator>Gojić, Mirko</creator><creator>Kožuh, Stjepan</creator><creator>Kosec, Borut</creator><general>Trans Tech Publications Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20201101</creationdate><title>Microstructural and Fractographic Analysis of CuAlNi Shape Memory Alloy before and after Heat Treatment</title><author>Ivanić, Ivana ; Gojić, Mirko ; Kožuh, Stjepan ; Kosec, Borut</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2710-a4c02a8f7ed5c2161eaa32a12633ecca1f6c04b7f8a2c7ab6a3abee6939b141e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Annealing</topic><topic>Electron microscopes</topic><topic>Fracture mechanics</topic><topic>Fracture surfaces</topic><topic>Heat treating</topic><topic>Heat treatment</topic><topic>Intergranular fracture</topic><topic>Martensitic transformations</topic><topic>Microstructure</topic><topic>Morphology</topic><topic>Scanning electron microscopy</topic><topic>Shape memory alloys</topic><topic>Solution annealing</topic><topic>Tempering</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ivanić, Ivana</creatorcontrib><creatorcontrib>Gojić, Mirko</creatorcontrib><creatorcontrib>Kožuh, Stjepan</creatorcontrib><creatorcontrib>Kosec, Borut</creatorcontrib><collection>CrossRef</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central</collection><collection>AUTh Library subscriptions: 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>SciTech Premium Collection</collection><collection>Materials 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><jtitle>Diffusion and defect data. Solid state data. Pt. A, Defect and diffusion forum</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ivanić, Ivana</au><au>Gojić, Mirko</au><au>Kožuh, Stjepan</au><au>Kosec, Borut</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microstructural and Fractographic Analysis of CuAlNi Shape Memory Alloy before and after Heat Treatment</atitle><jtitle>Diffusion and defect data. Solid state data. Pt. A, Defect and diffusion forum</jtitle><date>2020-11-01</date><risdate>2020</risdate><volume>405</volume><spage>100</spage><epage>106</epage><pages>100-106</pages><issn>1012-0386</issn><issn>1662-9507</issn><eissn>1662-9507</eissn><abstract>The paper presents comparison of microstructure and fracture surface morphology of the CuAlNi shape memory alloy (SMA) after different heat treatment procedures. The investigation was performed on samples in as-cast state and heat treated states (solution annealing at temperatures of 850 °C / 60’ / H2O and 920 °C / 60’ / H2O along with tempering at two different temperature 150 °C / 60’ / H2O and 300 °C / 60’ / H2O). The microstructure of the samples was examined by optical (OM) and scanning electron microscope (SEM) equipped with device for EDS analysis. The obtained fracture surfaces were examined by SEM. Optical and scanning electron microscopy showed martensitic microstructure in all investigated samples. However, the fractographic analysis of samples after tensile testing reveals significant changes in fracture mechanism. In both solution annealed states the results shows transgranular type of fracture, but after tempering at two different temperatures the difference is obvious. After tempering at 150 °C, along with transgranular type of fracture appear some areas with intergranular type of fracture. After tempering at 300 °C, fracture surface reveals completely intergranular type of fracture.</abstract><cop>Zurich</cop><pub>Trans Tech Publications Ltd</pub><doi>10.4028/www.scientific.net/DDF.405.100</doi><tpages>7</tpages></addata></record> |
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| ispartof | Diffusion and defect data. Solid state data. Pt. A, Defect and diffusion forum, 2020-11, Vol.405, p.100-106 |
| issn | 1012-0386 1662-9507 1662-9507 |
| language | eng |
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| source | Scientific.net Journals |
| subjects | Annealing Electron microscopes Fracture mechanics Fracture surfaces Heat treating Heat treatment Intergranular fracture Martensitic transformations Microstructure Morphology Scanning electron microscopy Shape memory alloys Solution annealing Tempering |
| title | Microstructural and Fractographic Analysis of CuAlNi Shape Memory Alloy before and after Heat Treatment |
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