Today is Email Alert  RSS

Optimization of the Metallurgical Process of (NixSi+C)/Cu Composite Materials Based on Orthogonal Test

Expand
  • 1.School of Railway Equipment Manufacturing,Shaanxi Railway Institute,Weinan 714099,China;2.Shaanxi Key Laboratory of Electrical Materials and Fusion Technology,Xi’an University of Technology,Xi’an 710048,China

Received date: 2022-09-01

  Revised date: 2022-10-01

  Accepted date: 2022-10-26

  Online published: 2023-08-11

Abstract

In order to optimize the parameters of the powder metallurgy process of (NixSi+C)/Cu composite materials,orthogonal tests were designed to study the effects of mixing method,sintering temperature and sintering time on the microstructure and mechanical properties of(NixSi+C)/Cu composite materials.Results showed that a low mixing energy would lead to an uneven dispersion of SiC particles,and SiC particles that didn’t take part in the reaction would remain at the boundary of the powders in the composite prepared;a high mixing energy would lead to serious deformation of the powders and increase the diffusion ability of the elements in the sintering process,making the mixture of Ni3Si and C at the boundary of the powder in the composite prepared after the reaction show a complete network structure.The increase of sintering temperature and sintering time would result in an increase of the amount of Ni3Si precipitated at the boundary of powders in the composite and an increase of the density of the composite.In addition,the conductivity and hardness showed an increasing trend.The parameter combination of the metallurgical preparation process of (NixSi+C)/Cu composite materials that could obtain the best conductivity and hardness was as follows:a vibration mixing,a pellet ratio of 1 ∶5,a sintering temperature of 950 ℃and a sintering time of 120 min.Under these conditions,the density,conductivity and Vickers hardness of the samples were verified,and the verification results were all higher than those of the samples in the orthogonal tests,which would provide an important theoretical and practical reference for the subsequent preparation of(NixSi+C)/Cu composite materials with excellent properties.

Cite this article

QIN Lan, JIA Lei, YANG Ming-fang, WANG Wen-jie, JIANG Li-ping . Optimization of the Metallurgical Process of (NixSi+C)/Cu Composite Materials Based on Orthogonal Test[J]. Materials Protection, 2023 , 56(2) : 77 -86 . DOI: 10.16577/j.issn.1001-1560.2022.2002

References

[1] 查元飞.硬质相增强W-Cu 复合材料的组织结构及摩擦磨损特性研究[D].福州: 福建工程学院,2021.CHA Y F.Study on microstructure and friction and wear properties of hard phase reinforced W-Cu composites[D].Fuzhou: Fujian University of Technology,2021.

[2] MUKHOPADHYAY A,BARMAN T K,SAHOO P.A study of tribological properties of electroless Ni-B coating under lubricated condition[J].Int J Appl Eng Res,2015,10(11): 10 090-10 095.

[3] CAO X,WANG X,CUI L,et al.Densification and properties investigation of W-Cu compo-sites prepared by electroless-plating and activated sintering[J].International Journal of Refractory Metals and Hard Materials,2017,327(112):1 085-1 092.

[4] 秦 岚.基于Cu-Ni/SiC 体系制备复合材料的反应行为与工艺优化[D].西安:西安理工大学,2020.QIN L.Reaction behavior and process optimization of composites based on Cu-Ni/Sic system[D].Xi’an:Xi’an University of Technology,2020.

[5] 庞晓军,邓畅光,徐丽萍,等.聚四氟乙烯/Al3O2-TiO2复合涂层的制备及其疏水性能研究[J].表面技术,2017,46(3): 143-150.PANG X J,DENG C G,XU L P,et al.Preparation of PTFE/Al3O2-TiO2composite coating and its hydrophobic property[J].Surface Technology,2017,46(3): 143-150.

[6] SANZ J,CASES R.Fabrication of three layered Cu-Ni-TiC functionally graded compo-site via spark plasma sintering[J].Fusion Engineering and Design,2017,93(65): 377-386.

[7] FUNK D S,CARLSON J W,EDEN J G,et al.Fabrication and properties of Cu-Ni-TiB2alloyreinforced by titanium coated carbon fibers[J].Materials Science & Engineering A,2018,30(22): 1 859-1 860.

[8] 贾 磊.Cu-Ni-Si 合金中硅化物相的形成及其调控对合金性能的影响[D].西安:西安理工大学,2009.JIA L.Formation of silicide phase in Cu-Ni-Si alloy and Its Effect on Properties of the alloy [D].Xi’an: Xi’an University of Technology,2009.

[9] 陶世平.Cu-Ni-Al 三元相图富铜端单相区析出相表征及其对性能的影响[D].西安: 西安理工大学,2014.TAO S P.Characterization of precipitates in Cu-rich corner of Cu-Ni-Al ternary phase diagram and its effect on properties[D].Xi’an: Xi’an University of Technology,2014.

[10] ACKER J,BOHMHANMEL K.Optimization of thermodynamic data of the Ni - Si system[J].Thermochim Acta,2018,337(225): 187.

[11] CHROMIK R R,NEILS W K,COTTS E J.Calorimetric investigation of the formation of metast-able silicides in Au/α-Si thin film multilayers[J].Journal of Applied Physics,2019,86: 4 273.

Outlines

/