[PO-E2] Poster Session 2

[P2-35] Strengthening through solid solution in W_1-xTa_xB system

^○lijuan liu¹, Wandong Xing², Fanyan Meng¹, Rong Yu² (1.Dept. of Applied Physics, University of Science and Technology Beijing, China, 2.School of Materials Science and Engineering, Tsinghua University , China)

The elastic properties, electronic structures and the energy barriers in slip processes of W_1-xTa_xB system have been studied using first-principles calculations. It was found that the (110) plane is the easiest slip plane in tungsten monoboride. By substituting tungsten with tantalum, slipping on the (110) plane can be hindered through dislocation pinning, resulting in the increase of overall hardness of tungsten monoboride Strengthening of the easiest planes is an effective approach to creating new hard materials in more metallic materials.