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...

Full description

Bibliographic Details
Main Authors: Chao Zhao, Weiwen Zhang, Zhi Wang, Daoxi Li, Zongqiang Luo, Chao Yang, Datong Zhang
Format: Article
Language:English
Published: MDPI AG 2017-09-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/10/9/1038
id doaj-8792efab8ac544cd90e226be3c07063c
record_format Article
spelling doaj-8792efab8ac544cd90e226be3c07063c2020-11-24T23:55:28ZengMDPI AGMaterials1996-19442017-09-01109103810.3390/ma10091038ma10091038Improving the Mechanical Properties of Cu-15Ni-8Sn Alloys by Addition of TitaniumChao Zhao0Weiwen Zhang1Zhi Wang2Daoxi Li3Zongqiang Luo4Chao Yang5Datong Zhang6Guangdong Key Laboratory for Processing and Forming of Advanced Metallic Materials, South China University of Technology, Guangzhou 510640, ChinaGuangdong Key Laboratory for Processing and Forming of Advanced Metallic Materials, South China University of Technology, Guangzhou 510640, ChinaGuangdong Key Laboratory for Processing and Forming of Advanced Metallic Materials, South China University of Technology, Guangzhou 510640, ChinaGuangdong Key Laboratory for Processing and Forming of Advanced Metallic Materials, South China University of Technology, Guangzhou 510640, ChinaGuangdong Key Laboratory for Processing and Forming of Advanced Metallic Materials, South China University of Technology, Guangzhou 510640, ChinaGuangdong Key Laboratory for Processing and Forming of Advanced Metallic Materials, South China University of Technology, Guangzhou 510640, ChinaGuangdong Key Laboratory for Processing and Forming of Advanced Metallic Materials, South China University of Technology, Guangzhou 510640, ChinaThe 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.https://www.mdpi.com/1996-1944/10/9/1038Cu-15Ni-8Sn alloytitaniummechanical propertiesgrain refinementdiscontinuous precipitation
collection DOAJ
language English
format Article
sources DOAJ
author Chao Zhao
Weiwen Zhang
Zhi Wang
Daoxi Li
Zongqiang Luo
Chao Yang
Datong Zhang
spellingShingle Chao Zhao
Weiwen Zhang
Zhi Wang
Daoxi Li
Zongqiang Luo
Chao Yang
Datong Zhang
Improving the Mechanical Properties of Cu-15Ni-8Sn Alloys by Addition of Titanium
Materials
Cu-15Ni-8Sn alloy
titanium
mechanical properties
grain refinement
discontinuous precipitation
author_facet Chao Zhao
Weiwen Zhang
Zhi Wang
Daoxi Li
Zongqiang Luo
Chao Yang
Datong Zhang
author_sort Chao Zhao
title Improving the Mechanical Properties of Cu-15Ni-8Sn Alloys by Addition of Titanium
title_short Improving the Mechanical Properties of Cu-15Ni-8Sn Alloys by Addition of Titanium
title_full Improving the Mechanical Properties of Cu-15Ni-8Sn Alloys by Addition of Titanium
title_fullStr Improving the Mechanical Properties of Cu-15Ni-8Sn Alloys by Addition of Titanium
title_full_unstemmed Improving the Mechanical Properties of Cu-15Ni-8Sn Alloys by Addition of Titanium
title_sort improving the mechanical properties of cu-15ni-8sn alloys by addition of titanium
publisher MDPI AG
series Materials
issn 1996-1944
publishDate 2017-09-01
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.
topic Cu-15Ni-8Sn alloy
titanium
mechanical properties
grain refinement
discontinuous precipitation
url https://www.mdpi.com/1996-1944/10/9/1038
work_keys_str_mv AT chaozhao improvingthemechanicalpropertiesofcu15ni8snalloysbyadditionoftitanium
AT weiwenzhang improvingthemechanicalpropertiesofcu15ni8snalloysbyadditionoftitanium
AT zhiwang improvingthemechanicalpropertiesofcu15ni8snalloysbyadditionoftitanium
AT daoxili improvingthemechanicalpropertiesofcu15ni8snalloysbyadditionoftitanium
AT zongqiangluo improvingthemechanicalpropertiesofcu15ni8snalloysbyadditionoftitanium
AT chaoyang improvingthemechanicalpropertiesofcu15ni8snalloysbyadditionoftitanium
AT datongzhang improvingthemechanicalpropertiesofcu15ni8snalloysbyadditionoftitanium
_version_ 1725462402550464512