Improving the Mechanical Properties of Cu-15Ni-8Sn Alloys by Addition of Titanium

Improving the Mechanical Properties of Cu-15Ni-8Sn Alloys by Addition of Titanium

The effect of Ti addition on the microstructure and mechanical properties of Cu-15Ni-8Sn alloys was investigated. Optical microscopy (OM), scanning electronic microscopy (SEM), and transmission electron microscopy (TEM) were used to determine grain size and distribution of the second phases in the a...

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Veröffentlicht in:Materials 2017-09, Vol.10 (9), p.1038
Hauptverfasser: Zhao, Chao, Zhang, Weiwen, Wang, Zhi, Li, Daoxi, Luo, Zongqiang, Yang, Chao, Zhang, Datong
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container_issue 9
container_start_page 1038
container_title Materials
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creator Zhao, Chao
Zhang, Weiwen
Wang, Zhi
Li, Daoxi
Luo, Zongqiang
Yang, Chao
Zhang, Datong
description The effect of Ti addition on the microstructure and mechanical properties of Cu-15Ni-8Sn alloys was investigated. Optical microscopy (OM), scanning electronic microscopy (SEM), and transmission electron microscopy (TEM) were used to determine grain size and distribution of the second phases in the alloys. The results indicate that the tensile properties of Cu-15Ni-8Sn alloys are improved significantly with Ti addition. Tensile elongation increased from 2.7% for the alloy without Ti to 17.9% for the alloy with 0.3% Ti, while tensile strength was maintained and even increased from 935 MPa to 1024 MPa. The improvement of the mechanical properties of Cu-15Ni-8Sn alloys by the addition of Ti is attributed to the grain refinement and suppression of discontinuous precipitation during heat treatment.
doi_str_mv 10.3390/ma10091038
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title Improving the Mechanical Properties of Cu-15Ni-8Sn Alloys by Addition of Titanium
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