Wear Resistance Increasing of Austenitic Steel by the Surface Hardening with Titanium Carbide

被引:1
|
作者
Bushueva, Eudokia [1 ]
Kuzin, Philip [1 ]
Drobyaz, Ekaterina [1 ]
Grinberg, Boris [2 ]
机构
[1] Novosibirsk State Tech Univ, K Marks 20, Novosibirsk 630073, Russia
[2] Russian Acad Sci, Siberian Branch, Design & Technol Branch, Lavrentev Inst Hydrodynam, Lavrenteva 15, Novosibirsk 630090, Russia
关键词
12X18H9T; titanium carbide; electron beam cladding; wear resistance; hydroabrasive wear;
D O I
10.1016/j.matpr.2018.12.155
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The structure, mechanical and tribotechnical properties of modified coatings on the surface of chromium-nickel austenitic steel 12X18H9T are investigated in this paper. Surface hardening was carried out by inserting TiC powder or a mixture of Ti and C powders (1:1) in the melted upper layer of the main material by an electron beam discharged into the atmosphere. Metallographic studies indicate the formation of coatings with the thickness similar to 1.2 -1.6 mm depending on the technological mode. The maximum value of the microhardness reaches 940 HV. X-ray phase and micro-X-ray spectral analysis confirmed the presence of high-strength TiC particles distributed in the gamma-Fe metal matrix. The estimation of abrasion resistance in conditions of friction on fixed particles of abrasive and hydroabrasive wear was made. The resistance of surface layers after treatment was increased up to 1.4-2 times. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码:342 / 347
页数:6
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