ساخت و ارزیابی خواص تریبولوژیکی قطعات آلیاژی Mo-Si-B

In this study, 76mo-14si-10b and 30mo-47si-23b (at.%) powder compounds were milled for 20 hours using an attritor ball mill with milling speed of 365rpm under inert gas atmosphere. after degasing of as-milled powders at 450? temperature for 2 hours, they were pressed into cylindrical samples with 25mm diameter and were sintered at 1100?-1400? temperature range by tube resistance furnace under ar gas atmosphere. wear behavior of mo-si-b alloys were investigated using a pin-on-disk wear test machine. the results of waer tests under 20n and 30n forces showed that sintered 30mo-47si-23b alloy at 1300? temperature for 3 hours has more wear resistance than 76mo-14si-10b alloy because of mosi2 and mob intermetallic particles fine and uniform distribution.