Thermoelastic properties on Cu-Zn-Al shape memory springs
This paper present a thermomechanical study of actuators in form of helical springs made from shape memory alloy wires that can work as actuator and/or as sensor. These abilities are due to the martensitic transformation. This transformation is a diffusionless phase transition that occurs by a coope...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2010-06-01
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| Series: | Materials Research |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000200016 |
| _version_ | 1818355756256198656 |
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| author | Carlos Augusto do Nascimento Oliveira Cezar Henrique Gonzalez Carlos José de Araújo Oscar Olímpio de Araújo Filho Severino Leopoldino Urtiga Filho |
| author_facet | Carlos Augusto do Nascimento Oliveira Cezar Henrique Gonzalez Carlos José de Araújo Oscar Olímpio de Araújo Filho Severino Leopoldino Urtiga Filho |
| author_sort | Carlos Augusto do Nascimento Oliveira |
| collection | DOAJ |
| description | This paper present a thermomechanical study of actuators in form of helical springs made from shape memory alloy wires that can work as actuator and/or as sensor. These abilities are due to the martensitic transformation. This transformation is a diffusionless phase transition that occurs by a cooperative atomic rearrange mechanism. In this work, helical spring actuators were manufactured from Cu-Zn-Al shape memory alloy wires. The springs were submitted to constant tensile loads and thermal cycles. This procedure allows to determine thermoelastic properties of the shape memory springs. Thermomechanical properties were analyzed during 50 thermal cycles in the temperature range from 20 to 130 °C. Results of variations in critical transformation temperatures, thermoelastic strain and thermal hysteresis are discussed based on defects rearrangement and martensitic transformation theory. |
| first_indexed | 2024-12-13T19:46:22Z |
| format | Article |
| id | doaj.art-b76371b123f440b7baec923e8fbd0576 |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-12-13T19:46:22Z |
| publishDate | 2010-06-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-b76371b123f440b7baec923e8fbd05762022-12-21T23:33:32ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392010-06-0113221922310.1590/S1516-14392010000200016Thermoelastic properties on Cu-Zn-Al shape memory springsCarlos Augusto do Nascimento OliveiraCezar Henrique GonzalezCarlos José de AraújoOscar Olímpio de Araújo FilhoSeverino Leopoldino Urtiga FilhoThis paper present a thermomechanical study of actuators in form of helical springs made from shape memory alloy wires that can work as actuator and/or as sensor. These abilities are due to the martensitic transformation. This transformation is a diffusionless phase transition that occurs by a cooperative atomic rearrange mechanism. In this work, helical spring actuators were manufactured from Cu-Zn-Al shape memory alloy wires. The springs were submitted to constant tensile loads and thermal cycles. This procedure allows to determine thermoelastic properties of the shape memory springs. Thermomechanical properties were analyzed during 50 thermal cycles in the temperature range from 20 to 130 °C. Results of variations in critical transformation temperatures, thermoelastic strain and thermal hysteresis are discussed based on defects rearrangement and martensitic transformation theory.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000200016shape memory effecthelical spring actuatorsheat treatment and training process |
| spellingShingle | Carlos Augusto do Nascimento Oliveira Cezar Henrique Gonzalez Carlos José de Araújo Oscar Olímpio de Araújo Filho Severino Leopoldino Urtiga Filho Thermoelastic properties on Cu-Zn-Al shape memory springs Materials Research shape memory effect helical spring actuators heat treatment and training process |
| title | Thermoelastic properties on Cu-Zn-Al shape memory springs |
| title_full | Thermoelastic properties on Cu-Zn-Al shape memory springs |
| title_fullStr | Thermoelastic properties on Cu-Zn-Al shape memory springs |
| title_full_unstemmed | Thermoelastic properties on Cu-Zn-Al shape memory springs |
| title_short | Thermoelastic properties on Cu-Zn-Al shape memory springs |
| title_sort | thermoelastic properties on cu zn al shape memory springs |
| topic | shape memory effect helical spring actuators heat treatment and training process |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000200016 |
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