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Enhancement of the RE-boronizing process through the use of La, Nd, Sm, and Gd compounds
Aprimoramento do processo de boreta????o com terras raras por meio do uso de Nd, Sm e Gd
Registration in:
0000-0002-1423-871X
Author
SANTAELLA, CESAR R.K.
COTINHO, SAMUEL P.
CORREA, OLANDIR V.
PILLIS, MARINA F.
INTERNATIONAL FORGING CONFERENCE, 24th; NATIONAL SHEET METAL FORMING CONFERENCE, 23rd; INTERNATIONAL SHEET METAL FORMING CONFERENCE, 10th; BRDDRG CONGRESS, 7th; INTERNATIONAL CONFERENCE ON MATERIALS AND PROCESSES FOR RENEWABLE ENERGIES, 10th; INTERNATIONAL CONFERENCE ON SURFACE ENGINEERING IN MATERIAL FORMING, 3rd
Abstract
Rare-earth elements have been used in the thermochemical treatment of boronizing to enhance boron
diffusion. In order to further investigate the effect of these elements on the process, neodymium-,
samarium-, and gadolinium were utilized for the treatment of AISI 1045 samples carried out at the
temperature of 1173 K for 4 h. The resulting boride layers formed were characterized through optical
microscopy, microhardness test, and X-ray diffraction (XRD). The comparison of the layers showed
that the addition of neodymium increased the depth by 48%, with samarium by 54%, and with
gadolinium by 76%.
Subjects
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