HIGH-PRESSURE-TORSION APPARATUSES AND METHODS OF MODIFYING MATERIAL PROPERTIES OF WORKPIECES USING SUCH APPARATUSES

摘要

The present invention relates to a high pressure torsion device (100) comprising a working shaft (102), a first anvil (110), a second anvil (120) and an annular body (130). The annular body 130 includes a first total-loss convection cooler 140, a second total-loss convection cooler 150 and a heater 160. Each of the first total-loss convection cooler 140 and the second total-loss convection cooler 150 is translatable between the first anvil 110 and the second anvil 120 along the working axis 102 and , It is configured to be thermally convectively coupled to the work piece 190, and is configured to selectively cool the work piece 190. The heater 160 is positioned between the first total-loss convection cooler 140 and the second total-loss convection cooler 150 along the work axis 102, and the first anvil along the work axis 102 The translation movement between 110 and the second anvil 120 is possible, and is configured to selectively heat the workpiece 190.