| Using vacuum melting casting prepared different boron content ingot, and processed the ingot into different diameter samples by drawing technology, using optical microscope, scanning electron microscopy, electron tensile testing machine and other analysis methods to study the physical properties and microstructure of materials. Results showed that, boron in the platinum formation the interstitial solid solution, the lattice constant of platinum increased, and formed lattice distortion, hinder the dislocation motion, the strength of the platinum increased obviously, boron and platinum forming alloy, which made the grain of platinum refinement, boron in platinum have reinforcement effect as well as increase the brittleness of platinum. |
