摘要
采用粉末冶金工艺制备了纯钼和掺杂Ti,Zr,C的TZM和掺杂La2O3的ZHM钼合金。简述了工艺过程。给出了掺杂元素的成分范围和烧结温度范围,及对它们进行搭配优选,获得了一组最合适的工艺参数,使材料的性能最好。其TZM棒材经1150℃,2h退火后,抗拉强度和延伸率分别达到800MPa和21%,ZHM棒经相同处理后分别达到650MPa和27%。TZM完全适合制作轧制无缝钢管用的钼顶头,ZHM可以做高温发热炉隔热屏用材料。
The pure Mo and TZM alloy with doping Ti, Zr, C, and ZHM with doping La2O3 are prepored by powder metallurgy process which is described briefly in the paper. The compositions of doping elements and the optimum process parameters including sintering temperature are obtained by means of optimization, so that the properties of materials is the better.After annealing at 1 150 ℃ for 2 h, the tensile strength and elongation of TZM bar is 800 MPa and 21% respectively, and 650 MPa and 27% for ZHM bar after the same treatment. TZM is always used as punch for seamless bloom, and ZHM used as heat elements and insuluting shield for high temperature furnace.
出处
《稀有金属快报》
CSCD
2006年第8期29-32,共4页
Rare Metals Letters
基金
陕西省自然科学基金资助项目(04JK143)
