Microstructure and electric conductivity of laser clad TiB2/Cu coating on pure copper

LI Yan; ZHANG Yong-zhong; HUANG Can; GONG Xin-yong; LIU Ming-kun

doi:10.3969/j.issn.1001-3806.2012.05.003

LASER TECHNOLOGY > 2012 > 36(5): 585-588. > DOI: 10.3969/j.issn.1001-3806.2012.05.003

LI Yan, ZHANG Yong-zhong, HUANG Can, GONG Xin-yong, LIU Ming-kun. Microstructure and electric conductivity of laser clad TiB2/Cu coating on pure copper[J]. LASER TECHNOLOGY, 2012, 36(5): 585-588. DOI: 10.3969/j.issn.1001-3806.2012.05.003

Citation:

PDF (645 KB)

Microstructure and electric conductivity of laser clad TiB2/Cu coating on pure copper

State Key Laboratory of Advanced Design and Manufacturing for Body, Hunan University, Changsha 410082, China;

More Information

Received Date: December 21, 2011
Revised Date: February 23, 2012
Published Date: September 24, 2012

Graphical Abstract

Abstract

Abstract

In order to meet the requirement for electromagnetic rails,through presetting powder on pure copper surface,TiB2/Cu coatings with different proportion of TiB2 were prepared by means of laser cladding.The microstructure and phases were investigated with optical microscopy,scanning electron microscopy and X-ray diffraction.The coating composed of Cu and TiB2,when the mass fraction of TiB2 is 0.02,0.05 and 0.1,the micro-hardness of the coating is approximately 95HV0.1,105HV0.1and 152HV0.1,and the electrical conductivity is 22.9MS/m,20.4MS/m and 16.4MS/m respectively.The coating metallurgically bonded with the substrate,free of cracks,and some agglomerated TiB2 particles exist.The clad layer possesses the epitaxial growth of columnar crystal.The results show that with increase of TiB2 content,the micro-hardness of TiB2/Cu coatings increases,and the conductivity decreases.
- laser technique,
- electrical conductivity,
- laser cladding,
- TiB2/Cu coating

FullText(HTML)

References (15)

References

[1]	PETERS D T.Copper alloys for industrial hardware[J].Advanced Materials and Processes,1996,150(4):30-32.
[1]	ZHANG Y Z,TU Y,XI M Z,et al.Characterization on laser clad nickel based alloy coating on pure copper[J].Surface and Coatings Technology,2008,202(24):5924-5928.
[2]	LIU J L.Development of surface treatment technologies of copper alloy[J].Nonferrous Metals Processing,2008,37(4):45-47(in Chinese).
[3]	WANG H M,ZHANG L Y,LI A,et al.Progress on laser melting deposition process and manufacturing of advanced aeronautical metallic structural materials and coating[J].Heat Treatment of Metals,2008,33(1):82-85(in Chinese).
[4]	YANG G R,HAO Y,SONG W M,et al.Surface composite on the substrate fabricated by infiltration casting[J].Acta Materiae Compositae Sinica,2005,22(1):52-57(in Chinese).
[5]	JIAN Zh H,MA Zh,WANG F Ch,et al.Study on high velocity oxyfuel and plasma spraying process of W coatings on copper substrate[J].Ordnance Material Science and Engineering,2007,30(2):2730(in Chinese).
[6]	ZHU C Y,LI G Q,ZHANG F,et al.Progress in study of surface treatment technology for continuous casting mould[J].Materials Protection,2005,38(5):43-47(in Chinese).
[7]	ZHANG X Q,XU Z H,DENG J Q,et al.Preparation methods and techniques of Cu-based composite[J].Hot Working Technology,2007,36(6):73-77(in Chinese).
[8]	LEE D W,KIM B K.Nanostructured Cu-Al2O3 composite produced by thermochemical process for electrode application[J].Materials Letters,2004,58(3/4):378-383.
[9]	SUNDBERG G,PAUL P,SUNG C M,et al.Fabrication of Cu-SiC metal matrix composites[J].Journal of Materials Science,2006,41 (2):485-504.
[10]	LIU D B,CUI C X.Fabrication and properties of TiN particle-reinforced copper matrix composites[J].Chinese Journal of Rare Metals,2004,28(5):856-861(in Chinese).
[11]	TJONG S C,LAU K C.Abrasive wear behavior of TiB 2 particle-reinforced copper matrix composites[J].Materials Science and Engineering,2000,A282(1/2):183-186(in Chinese).
[12]	DONG Sh J,LEI Y P,SHI Y W.In situ formation of titanium diboride/copper composite[J].Journal of Xi'an Jiaotong University,2000,34(5):69-73(in chinese).
[13]	LEE J S,JUNG J Y,LEE E S,et al.Microstructure and properties of titanium boride dispersed Cu alloys fabricated by spray forming[J].Materials Science and Engineering,2000,A277(1/2):274283(in Chinese).
[14]	CHEN Sh Ch,CHEN L B.Physical properties of material[M].Shanghai:Shanghai Jiaotong University Press,1999:56-60(in Chinese).

Cited By

Get Citation

PDF

XML

Article views (6) PDF downloads (15)

Turn off MathJax

Article Contents

Abstract

References

Microstructure and electric conductivity of laser clad TiB2/Cu coating on pure copper

Abstract

References

Catalog

Links：

Microstructure and electric conductivity of laser clad TiB2/Cu coating on pure copper

Abstract

References

Catalog

Links：

Export File

Citation

Format

Content