Adhesion between ferrite iron-iron/cementite countersurfaces: A molecular dynamics study

被引：10

作者：

AlMotasem, A. T. ^{[1
,2
]}

Bergstrom, J. ^{[1
]}

Gaard, A. ^{[1
]}

Krakhmalev, P. ^{[1
]}

Holleboom, L. J. ^{[1
]}

机构：

[1] Karlstad Univ, Dept Mech & Mat Engn, Univ Gatan 2, S-65637 Karlstad, Sweden

[2] Assiut Univ, Dept Phys, Fac Sci, Assiut 71516, Egypt

来源：

TRIBOLOGY INTERNATIONAL | 2016年 / 103卷

关键词：

Molecular dynamics; Adhesion; Cementite; Iron; Commensurability; TOOL STEEL MICROSTRUCTURE; PHOTOELECTRON-SPECTROSCOPY; GALLING INITIATION; AB-INITIO; BCC IRON; INTERFACES; SURFACES; CARBON; RESISTANCE; ENERGIES;

D O I：

10.1016/j.triboint.2016.06.027

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The adhesive properties of Fe(110)/Fe(110) and Fe3C(001)/Fe(110) countersurfaces have been investigated by using classical molecular dynamics simulations. The simulation results show that Fe3C/Fe exhibits a relatively lower adhesion compared to the Fe/Fe. Additionally, the temperature dependence of the adhesive properties between 300-700 K has been examined. The results demonstrate that, with increasing the temperature, the values of the adhesion force and the work of adhesion continuously decrease in the case of Fe3C/Fe; they initially slightly increase up to 500 K then decrease in the case of Fe/Fe. Furthermore, the effect of lattice coherency between Fe/Fe has been examined and found to slightly reduce the adhesion. These results explain how carbides improve galling resistance of tool steel observed during dry sliding. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：113 / 120

页数：8

共 34 条

[1] Structure, bonding, and adhesion at the TiC(100)/Fe(110) interface from first principles [J].