摘要
介绍了Ti C/Ni-Cr-Al合金陶瓷在脉冲电子束熔化后的实验及结构方面的表征,考察了表面纳米尺寸结构的不同级别对亚表层金属物理性质的影响。结果表明,在氙气或者是氙气+氮气的气体放电等离子体辐照后在亚表层出现纳米结构的碳化物颗粒,这大大降低了摩擦系数,使金属陶瓷切削金属时的寿命提高约20倍。
Both experimental data and the classification of structural scale levels developed in the subsurface of TiC/Ni-Cr-Al alloy cermet after pulse electron beam melting have been presented. The effect of different scale levels of surface nanosize structures on physical properties of the subsurface metal has been investigated. Results show that nanorestructuring of carbide particles in the subsurface layer occurs under the irradiation in either xenonor xenon＋nitrogen containing gas discharge plasma which greatly reduces friction coefficient and improves endurance of the cermet for cutting metal by a factor of 20.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2015年第1期1-6,共6页
Rare Metal Materials and Engineering
基金
SB RAS Project(III.23.2.1)
Fundamental Research Project of Byelorussian AS and Fundamental Research Program OEMMPU RAS"Multiscale Investigation of Properties and Behavior of Advanced Materials"
关键词
金属陶瓷
微观结构
结构级别
摩擦系数
寿命
cermet
microstructure
structural level
friction coefficient
endurance
