Deformation Strengthening of Titanium Zirconium Molybdenum Alloy

Deformation strengthening for molybdenum and titanium zirconium molybdenum (TZM) alloy is an important enhancement means. The object of deformation strengthening is making alloy crystal lattice distortion, dislocation density increases, as well as produce secondary grains and so on, so that the alloy mechanical is changed, thereby changing its performance. Deformation strengthening has many ways, such as forging, extrusion, hot-rolled etc.. So when selecting deformation strengthening means should follow product different shape and requirements. After a series of research data found that TZM alloy after deformation strengthening not only improve strength and ductility, but also ductile - brittle transition degree reduces and the tensile strength significantly increased.

When produce TZM bars, the usual deformation strengthening method is hot extrusion. After extrusion, alloy along with extrusion axis direction and perpendicular extrusion direction performance will vary. Alloy along with extrusion axis direction show ductility and along with perpendicular extrusion direction showing brittleness.