Ion-electron-plasma Modification of Structure,Tribological and Strength Properties of the Surface Layer of a Metal-ceramic Composite
This work reports on the formation of ultrafine structure in the surface layer of a metal-ceramic composite using pulse ion-electron irradiation in plasma of inert gases and the effect of the structure modification of the surface layer of the composite on its physical and strength properties.It is found that the pulse ion-electron irradiation in inert gas plasmas forms multilayered ultrafine structure in the surface layer of the composite.The upper sublayer is characterized by the oriented nanosized columnar ceramic crystals.The intermediate sublayer has the oriented submicrocrystalline ceramic crystals.There is dendrite structure in the bottom sublayer being transition to the initial structure of the composite.The depth of the modified surface layer and the fraction of ultrafine ceramic particles in it increase with the increase of atomic mass of the inert gas and simultaneous decrease of its ionization energy.The wear resistance and bend strength rise and the friction coefficient decreases as a result of structure refining in the surface layer.
Ion-electron-plasma Modification of structure Ultrafine structure Metal-ceramic composite Surface layer Tribological properties Strength properties
Yu Baohai Ovcharenko Vladimir E. Ivanov Konstantin V.
Institute of Metal Research of CAS,72 Wenhua Road,Shenyang 110016,China Institute of Strength Physics and Materials Science of SB RAS,2/4 Akademichesky,634055,Tomsk,Russia; Institute of Strength Physics and Materials Science of SB RAS,2/4 Akademichesky,634055,Tomsk,Russia
国际会议
北京
英文
951-956
2018-09-16（万方平台首次上网日期，不代表论文的发表时间）