Microstructure and Fatigue Behavior of a Ni-Cu-Sn Alloy
In this paper, the static and fatigue properties of a Cu-Ni-Sn alloy are investigated. Tensile tests, hardness tests and microstructural analyses using optical and scanning electron microscopy (SEM) were performed and two sets of fatigue tests, with load ratio (<i>R</i>) <inline-formu...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-10-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/8/11/888 |
| _version_ | 1811234215813971968 |
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| author | Leonardo Bertini Francesco Bucchi Francesco Frendo Renzo Valentini |
| author_facet | Leonardo Bertini Francesco Bucchi Francesco Frendo Renzo Valentini |
| author_sort | Leonardo Bertini |
| collection | DOAJ |
| description | In this paper, the static and fatigue properties of a Cu-Ni-Sn alloy are investigated. Tensile tests, hardness tests and microstructural analyses using optical and scanning electron microscopy (SEM) were performed and two sets of fatigue tests, with load ratio (<i>R</i>) <inline-formula> <math display="inline"> <semantics> <mrow> <mi>R</mi> <mo>=</mo> <mo>−</mo> <mn>1</mn> </mrow> </semantics> </math> </inline-formula> and <inline-formula> <math display="inline"> <semantics> <mrow> <mi>R</mi> <mo>=</mo> <mn>0</mn> </mrow> </semantics> </math> </inline-formula>, respectively, were carried out. The results showed the capability of the alloy to bear high static stress, thanks to its good strength properties. However, the fatigue tests showed a strong sensitivity of the alloy fatigue properties depending on the raw material batch. The comparison between microstructural analyses and fatigue test results showed a strong correlation; in particular, the specimens having a more inhomogeneous microstructure showed lower durability. In addition, the different microstructure also affected the fracture surface morphology as highlighted by SEM analyses. |
| first_indexed | 2024-04-12T11:32:57Z |
| format | Article |
| id | doaj.art-4562907bdfd7467e8c9dddaecb3120a1 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-04-12T11:32:57Z |
| publishDate | 2018-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-4562907bdfd7467e8c9dddaecb3120a12022-12-22T03:34:57ZengMDPI AGMetals2075-47012018-10-0181188810.3390/met8110888met8110888Microstructure and Fatigue Behavior of a Ni-Cu-Sn AlloyLeonardo Bertini0Francesco Bucchi1Francesco Frendo2Renzo Valentini3Department of Civil and Industrial Engineering, Università di Pisa, Largo Lucio Lazzarino, 56122 Pisa, ItalyDepartment of Civil and Industrial Engineering, Università di Pisa, Largo Lucio Lazzarino, 56122 Pisa, ItalyDepartment of Civil and Industrial Engineering, Università di Pisa, Largo Lucio Lazzarino, 56122 Pisa, ItalyDepartment of Civil and Industrial Engineering, Università di Pisa, Largo Lucio Lazzarino, 56122 Pisa, ItalyIn this paper, the static and fatigue properties of a Cu-Ni-Sn alloy are investigated. Tensile tests, hardness tests and microstructural analyses using optical and scanning electron microscopy (SEM) were performed and two sets of fatigue tests, with load ratio (<i>R</i>) <inline-formula> <math display="inline"> <semantics> <mrow> <mi>R</mi> <mo>=</mo> <mo>−</mo> <mn>1</mn> </mrow> </semantics> </math> </inline-formula> and <inline-formula> <math display="inline"> <semantics> <mrow> <mi>R</mi> <mo>=</mo> <mn>0</mn> </mrow> </semantics> </math> </inline-formula>, respectively, were carried out. The results showed the capability of the alloy to bear high static stress, thanks to its good strength properties. However, the fatigue tests showed a strong sensitivity of the alloy fatigue properties depending on the raw material batch. The comparison between microstructural analyses and fatigue test results showed a strong correlation; in particular, the specimens having a more inhomogeneous microstructure showed lower durability. In addition, the different microstructure also affected the fracture surface morphology as highlighted by SEM analyses.https://www.mdpi.com/2075-4701/8/11/888Ni-Cu-Sn alloyfatiguemechanical characterizationmicrostructureSEMimage elaboration |
| spellingShingle | Leonardo Bertini Francesco Bucchi Francesco Frendo Renzo Valentini Microstructure and Fatigue Behavior of a Ni-Cu-Sn Alloy Metals Ni-Cu-Sn alloy fatigue mechanical characterization microstructure SEM image elaboration |
| title | Microstructure and Fatigue Behavior of a Ni-Cu-Sn Alloy |
| title_full | Microstructure and Fatigue Behavior of a Ni-Cu-Sn Alloy |
| title_fullStr | Microstructure and Fatigue Behavior of a Ni-Cu-Sn Alloy |
| title_full_unstemmed | Microstructure and Fatigue Behavior of a Ni-Cu-Sn Alloy |
| title_short | Microstructure and Fatigue Behavior of a Ni-Cu-Sn Alloy |
| title_sort | microstructure and fatigue behavior of a ni cu sn alloy |
| topic | Ni-Cu-Sn alloy fatigue mechanical characterization microstructure SEM image elaboration |
| url | https://www.mdpi.com/2075-4701/8/11/888 |
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