公开(公告)号：US4621499A

公开(公告)日：1986-11-11

申请号：US754665

申请日：1985-07-11

Applicant: Takanobu Mori ,  Tetsuo Kashimura ,  Yutaka Fukui ,  Yoshimi Yanai ,  Nobuyuki Iizuka

Inventor： Takanobu Mori ,  Tetsuo Kashimura ,  Yutaka Fukui ,  Yoshimi Yanai ,  Nobuyuki Iizuka

IPC: C22C19/05 ,  F01D25/00 ,  F23R3/42 ,  F02C1/00

CPC classification number: C22C19/053 ,  F01D25/005

Abstract: A gas turbine combustor defines a combustion chamber for combustion of injected fuel and for introduction of the resultant hot combustion gas to nozzles of a gas turbine. The combustor has parts subjected to hot combustion gas during operation of the turbine, such as a cap connected to a fuel injection nozzle, a liner connected to the cap, and a transition piece connected to the liner. These parts subjected to the hot combustion gas are made from an alloy having a composition consisting essentially of 0.02 to 0.2 wt % of C, 15 to 30 wt % of Cr and 10 to 25 wt % of W.

Abstract translation: 燃气轮机燃烧器限定用于燃烧喷射燃料的燃烧室和用于将所产生的热燃烧气体引入燃气轮机的喷嘴。 燃烧器具有在涡轮机操作期间经受热燃烧气体的部件，例如连接到燃料喷射喷嘴的盖，连接到盖的衬套和连接到衬套的过渡件。 受热燃气体的这些部件由具有基本上由C组成0.02〜0.2重量％，Cr为15〜30重量％，W为10〜25重量％组成的合金构成。

公开(公告)号：US4437913A

公开(公告)日：1984-03-20

申请号：US286514

申请日：1981-07-24

Applicant: Yutaka Fukui ,  Tetsuo Kashimura

Inventor： Yutaka Fukui ,  Tetsuo Kashimura

IPC: C22C19/07

CPC classification number: C22C19/07

Abstract: A cobalt base alloy having a superior high-temperature strength and high-temperature ductility, containing, by weight, 0.15 to 2% carbon, less than 2% silicon, less than 2% manganese, 5 to 15% nickel, 18 to 35% chromium, 3 to 15% tungsten, 0.003 to 0.1% boron, 0.01 to 1% niobium, 0.01 to 1% zirconium, less than 110% iron, less than 1% tantalum, less than 1% hafnium and remainder cobalt. At least one of 0.01 to 1 wt% titanium and 0.01 to 1 wt% (combined amount) rare earth elements is added to the alloy. The alloy is used as a casting and contains eutectic carbides and secondary carbides precipitated substantially uniformly in the grains. If the secondary carbides are formed by an age-treatment conducted at a higher temperature than that at which the alloy is actually used, the high-temperature strength and the high-temperature ductility of the alloy are remarkably improved. The cobalt base alloy is formed into gas turbine nozzles by a precision casting.

Abstract translation: 具有优异的高温强度和高温延展性的钴基合金，其含有0.15〜2％的碳，小于2％的硅，小于2％的锰，5〜15％的镍，18〜35％ 铬，3〜15％的钨，0.003〜0.1％的硼，0.01〜1％的铌，0.01〜1％的锆，少于110％的铁，1％以下的钽，1％以下的铪和余量的钴。 向合金中添加0.01〜1重量％的钛和0.01〜1重量％（组合的量）稀土元素中的至少1种。 该合金用作铸件，并且包含在晶粒中基本上均匀沉淀的共晶碳化物和二次碳化物。 如果通过在比实际使用合金的温度高的温度下进行的老化处理形成二次碳化物，则合金的高温强度和高温延展性显着提高。 钴基合金通过精密铸造形成燃气轮机喷嘴。