Inclusions in metallic materials as origin for microcraters formation at a pulsed electron-beam surface melting

被引：0
|
作者：
Shepel, D. A. [1 ]
Markov, A. B. [1 ]
Yakovlev, E. V. [1 ]
Petrov, V. I. [1 ]
机构：
[1] RAS, SB, Tomsk Sci Ctr, 10-4 Akad Ave, Tomsk 634055, Russia
来源：
6TH INTERNATIONAL CONGRESS ENERGY FLUXES AND RADIATION EFFECTS | 2018年 / 1115卷
关键词：
LOW-ENERGY; ALLOYS;
D O I：
10.1088/1742-6596/1115/4/042013
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In the present work, the effect of difference between thermal properties of the base material (matrix) and inclusion on the temperature behavior of the target in the regions of inclusion locations has been considered. The calculations were based on the solution of two-dimensional nonlinear nonstationary heat equation. It has been shown that the most strong effect on the temperature field takes the difference between heat conductivities of the matrix and inclusion. The simulations of temperature fields have been carried out on the real systems matrix-inclusion, namely, stainless steel 316 L/manganese sulfide (SS 316L/MnS), TiNi/Ti2Ni, TiNi/TiC. The results obtained allows suggestion on the origin of microcraters appearing at the irradiated surface as a result of thermocapillary convection in overheated sites of location of inclusions.
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页数：5
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