Home FOR AUTHORS Kovove Materialy-Metallic Materials 2017 Metallic Materials Vol. 55 (2017), no. 1, pp.45-50

Journal info

Select Journal







Webshop Cart

Your Cart is currently empty.

Info: Your browser does not accept cookies. To put products into your cart and purchase them you need to enable cookies.

Metallic Materials Vol. 55 (2017), no. 1, pp.45-50

Title: Structural evolution and wear properties of the laser melted deposited nanocrystalline composites on TA7
Author: Q. G. MA, X. GAO, J. Q. LI

Abstract: Ni60-NB-Ag was firstly used to fabricate composites to increase the wear resistance of TA7 (Ti-5Al-2.5Sn) titanium alloy surface by means of a laser melted deposited (LMD) technique. Experimental results revealed that a large quantity of the interdendritic lamellar eutectics, the nanoscale particles (NP), and the amorphous structure were formed in such composites. During an LMD process, great amounts of Ag were released from the pre-placed layer, which increased the number of the nucleation points, favoring the formation of a fine microstructure and also the NP. However, too high Ag content led the micro-cracks to be produced. Compared with a TA7 substrate, an improvement of the wear resistance was observed for such LMD composites.

Keywords: metal-matrix composites, surface properties, laser technique, nano-materials
Published online: 14-Mar-2017
Year: 2017, Volume: 55, Issue: 1 Page From: 45, Page To: 50
doi:10.4149/km_2017_1_45


download file



© AEPress s.r.o
Copyright notice: For any permission to reproduce, archive or otherwise use the documents in the ELiS, please contact AEP.