SCIENCE CHINA Technological Sciences, Volume 61 , Issue 12 : 1901-1906(2018) https://doi.org/10.1007/s11431-018-9293-9

Microstructure and properties of nitrided layer of titanium plate, produced by simultaneous laser quenching and liquid-nitrogen cryogenics

More info
  • ReceivedApr 11, 2018
  • AcceptedMay 25, 2018
  • PublishedNov 20, 2018


In the present study, titanium plate was treated by a novel method of laser quenching, simultaneously combined with liquid-nitrogen cryogenics (LQLNC). The microstructure and properties of the titanium plate after treatment were investigated by X-ray diffraction, scanning electron microscopy, energy dispersive spectrometry, Vickers hardness testing, and friction wear testing. The results show that the treated titanium plate is covered by a nitrided layer with a homogeneous thickness of about 60 μm, while the nitrided layer consists of TiN and α-Ti phases. Compared to general laser quenching, the LQLNC treatment increases the hardness and wear resistance of the surface-modified layer of the titanium plate. As a result of grain refinement in the nitrided layer, the cracking induced by the rapid solidification of the conventional laser-quenching process has also been effectively solved.

Funded by

the National High Technology Research and Development Program(Grant,No.,2012AA03A508)

and the National Natural Science Foundation of China(Grant,No.,U1360102,51275344)


This work was supported by the National High Technology Research and Development Program of China (Grant No. 2012AA03A508), and the National Natural Science Foundation of China (Grant Nos. U1360102, 51275344).


[1] Guo L, Tian J, Wu J, et al. Effect of surface texturing on the bonding strength of titanium-porcelain. Mater Lett, 2014, 131: 321-323 CrossRef Google Scholar

[2] Lee H, Jang T S, Song J, et al. Multi-scale porous Ti6Al4V scaffolds with enhanced strength and biocompatibility formed via dynamic freeze-casting coupled with micro-arc oxidation. Mater Lett, 2016, 185: 21-24 CrossRef Google Scholar

[3] Li B, Wang X, Min Y, et al. Corrosion resistance and mechanical properties of titanium with hierarchical micro-nanostructure. Mater Lett, 2016, 182: 43-46 CrossRef Google Scholar

[4] Ren H L, Wang J, Hao L, et al. Failure behavior of cellular titanium under dynamic loading. Sci China Technol Sci, 2017, 60: 613-623 CrossRef Google Scholar

[5] Yao Q, Sun J, Fu Y, et al. An evaluation of a borided layer formed on Ti-6Al-4V alloy by means of SMAT and low-temperature boriding. Materials, 2016, 9: 993 CrossRef PubMed ADS Google Scholar

[6] Chikarakara E, Naher S, Brabazon D. High speed laser surface modification of Ti-6Al-4V. Surf Coatings Tech, 2012, 206: 3223-3229 CrossRef Google Scholar

[7] Dahotre S N, Vora H D, Pavani K, et al. An integrated experimental and computational approach to laser surface nitriding of Ti-6Al-4V. Appl Surf Sci, 2013, 271: 141-148 CrossRef ADS Google Scholar

[8] Chai L J, Wang S Y, Wu H, et al. α→β transformation characteristics revealed by pulsed laser-induced non-equilibrium microstructures in duplex-phase Zr alloy. Sci China Technol Sci, 2017, 60: 1255-1262 CrossRef Google Scholar

[9] Liu S N, Liu Z D, Wang Y, et al. Ti-based composite coatings with gradient TiCx reinforcements on TC4 titanium alloy prepared by laser cladding. Sci China Technol Sci, 2014, 57: 1454-1461 CrossRef Google Scholar

[10] Duraiselvam M, Valarmathi A, Shariff S M, et al. Laser surface nitrided Ti-6Al-4V for light weight automobile disk brake rotor application. Wear, 2014, 309: 269-274 CrossRef Google Scholar

[11] Roy S, Das M, Mallik A K, et al. Laser melting of titanium-diamond composites: Microstructure and mechanical behavior study. Mater Lett, 2016, 178: 284-287 CrossRef Google Scholar

[12] Lupoi R, Sparkes M, Cockburn A, et al. High speed titanium coatings by supersonic laser deposition. Mater Lett, 2011, 65: 3205-3207 CrossRef Google Scholar

[13] Sun J, Tong W P, Zuo L, et al. Low-temperature plasma nitriding of titanium layer on Ti/Al clad sheet. Mater Des, 2013, 47: 408-415 CrossRef Google Scholar

[14] Sun J, Yao Q T, Tong W P, et al. Simultaneous nitriding for two components of Ti/steel clad sheet. Surf Eng, 2015, 31: 605-611 CrossRef Google Scholar

[15] Sun J, Yao Q T, Zhang Y H, et al. Simultaneously improving surface mechanical properties and in vitro biocompatibility of pure titanium via surface mechanical attrition treatment combined with low-temperature plasma nitriding. Surf Coatings Tech, 2017, 309: 382-389 CrossRef Google Scholar

[16] Miao B, Song L, Chai Y, et al. The effect of sand blasting pretreatment on plasma nitriding. Vacuum, 2017, 136: 46-50 CrossRef ADS Google Scholar

[17] Yao Q, Sun J, Zhang G, et al. Enhanced toughness of nitrided layers formed on Ti-6Al-4V alloy via surface mechanical attrition pre-treatment. Vacuum, 2017, 142: 45-51 CrossRef ADS Google Scholar

[18] Tong W P, Han Z, Wang L M, et al. Low-temperature nitriding of 38CrMoAl steel with a nanostructured surface layer induced by surface mechanical attrition treatment. Surf Coatings Tech, 2008, 202: 4957–4963. Google Scholar

[19] Ramesh R, Gnanamoorthy R. Fretting wear behavior of liquid nitrided structural steel, En24 and bearing steel, En31. J Mater Processing Tech, 2006, 171: 61-67 CrossRef Google Scholar

[20] Li G J, Li J, Luo X. Effects of post-heat treatment on microstructure and properties of laser cladded composite coatings on titanium alloy substrate. Optics Laser Tech, 2015, 65: 66-75 CrossRef ADS Google Scholar

[21] Diao Y, Zhang K. Microstructure and corrosion resistance of TC2 Ti alloy by laser cladding with Ti/TiC/TiB2 powders. Appl Surf Sci, 2015, 352: 163-168 CrossRef ADS Google Scholar

Copyright 2020  CHINA SCIENCE PUBLISHING & MEDIA LTD.  中国科技出版传媒股份有限公司  版权所有

京ICP备14028887号-23       京公网安备11010102003388号