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近年来在飞机发动机用高温合金中添加铼的研究引人注目。90年代新型军用飞机叶片趋向于采用加铼的单向凝固型合金,以替代析出硬化型镍基高温合金,因而铼的需要量增加。近期军用飞机生产量减少,故需铼量也减少,铼的价格也随之下跌。金属铼的价格已由1991年初的730～750美元/磅降至550～575美元/磅,铼酸铵的价格则由625～650美元/磅降至500～525美元/磅。 触媒(PtO.2～O.75％、Re0.2～0.5％)用铼
In recent years, research on the addition of rhenium to the superalloy used in aircraft engines attracts attention. In the 1990s, newer military aircraft blades tended to adopt one-way solidified alloys with rhenium instead of precipitation hardening nickel-base superalloys, thereby increasing the need for rhenium. The recent decline in military aircraft production, so rhenium also reduce the amount of rhenium prices also will fall. The price of metal rhenium dropped to $ 550-575 / lb from $ 730- $ 750 / lb in early 1991, and the price of ammonium rhenate dropped from $ 625-650 / lb to $ 500-525 / lb. Catalyst (PtO.2 ~ O.75%, Re0.2 ~ 0.5%) with rhenium