THE INFLUENCE OF STEEL AND CAST IRON AS SUBSTRATE MATERIALS ON THE MICROSTRUCTURE, MICROHARDNESS AND WEAR RESISTANCE OF NICKEL-BASE Ti-Al PLASMA SPRAY COATINGS

被引：0

作者：

Skulev, Hristo ^{[1
]}

Veselinov, Deyan ^{[1
]}

机构：

[1] Bulgarian Acad Sci, Inst Met Sci Equipment & Technol, Hydro & Aerodynam Ctr Acad A Balevski, 67 Shipchenski Prohod Blvd, Sofia 1574, Bulgaria

来源：

COMPTES RENDUS DE L ACADEMIE BULGARE DES SCIENCES | 2022年 / 75卷 / 11期

关键词：

plasma spray; nickel alloy; coatings; steel; cast iron;

D O I：

10.7546/CRABS.2022.11.13

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

This paper studies the influence of different substrate materials on the phase composition, microstructure, microhardness, and wear resistance of Ni-Cr-B-Si-C-Ti-Al plasma spray coatings. Two types of substrate metals were studied - AISI 1045 steel and Pig-P3 Si grey cast iron. It has been found that in the as-coated condition the surface layers have a phase composition of 7-Ni, Cr23C6, 7-TiAl, TiN, and alpha-Ti(N, O) on steel substrate, and 7-Ni, alpha-Ti, TiN, Ni3B, CrB, Cr23C6, alpha-Ti(N, O), Ni3Si on cast iron. The microhardness and wear resistance of the plasma sprayed Ni-Cr-B-Si-C-Ti-Al coatings is tested. The wear volume of the coatings has been tested for up to 60 min. The de-posits on cast iron substrates demonstrate lower wear than those on the steel substrate.

引用

页码：1656 / 1662

页数：7