| Full text | |
| Author(s): |
Gera, Dennis B.
[1]
;
Soyama, Juliano
[2]
;
Cava, Regis D.
[3]
;
Spinelli, Jose E.
[1]
;
Kiminami, Claudio S.
[1]
Total Authors: 5
|
| Affiliation: | [1] Univ Fed Sao Carlos UFSCar, Dept Engn Mat DEMa, BR-13565905 Sao Carlos, SP - Brazil
[2] Univ Fed ABC UFABC, Ctr Engn Modelagem Ciencias Sociais Aplicadas CEC, BR-09210580 Sao Paulo - Brazil
[3] Univ Oeste Joinville Univille, Programa Posgrad Engn Proc, BR-89219710 Joinville - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | ADVANCED ENGINEERING MATERIALS; v. 20, n. 10 OCT 2018. |
| Web of Science Citations: | 4 |
| Abstract | |
Shape memory alloys from the Cu-Al-Ni system arouse interest for industrial applications due to their high thermal stability and low cost. In this study, the Cu-11.8Al-3.2Ni-3Mn-0.5Zr alloy is prepared through a powder metallurgy processing technique. Specimens are produced by a conventional uniaxial press followed by sintering procedure under argon atmosphere. The sintering temperature is varied in the range from 950 to 1060 degrees C, whereas sintering time is varied from 0.5 to 2h. The results denote that a temperature close to the alloy's solidus temperature is necessary to achieve higher densities. Moreover, martensite-type microstructures are observed, despite the slow cooling rate applied after sintering. The compression strengths are in the order of 500MPa with the exception of the specimens sintered for 1.5h, which reaches an average of 700MPa. This is explained by the lower porosity resulting from liquid phase sintering. The forward and reverse martensitic transformation temperatures, however, are quite similar for all examined conditions. (AU) | |
| FAPESP's process: | 13/05987-8 - Processing and characterization of amorphous, metastable and nano-structured metallic alloys |
| Grantee: | Claudio Shyinti Kiminami |
| Support type: | Research Projects - Thematic Grants |
| FAPESP's process: | 14/13037-2 - Multi-User Equipment approved in grant 2013/05987-8: gas atomizer for 3kg steel in inert atmosphere with melting by induction |
| Grantee: | Claudio Shyinti Kiminami |
| Support type: | Multi-user Equipment Program |
| FAPESP's process: | 16/00583-4 - Processing of Cu-11.8Al-3.2Ni-3Mn-0,5Zr shape memory alloy by powder metallurgy |
| Grantee: | Dennis Balbino Gera |
| Support type: | Scholarships in Brazil - Scientific Initiation |