公开(公告)号：JPH09170054A

公开(公告)日：1997-06-30

申请号：JP30515796

申请日：1996-11-15

Applicant: ABB MANAGEMENT AG

Inventor： NAZMY MOHAMED DR ,  NOSEDA CORRADO ,  ROESLER JOACHIM DR ,  STAUBLI MARKUS

IPC: C21D6/00 ,  C22C19/05 ,  C22C30/00 ,  C22C38/00 ,  C22C38/08 ,  C22F1/10

公开(公告)号：CA2184960A1

公开(公告)日：1997-05-18

申请号：CA2184960

申请日：1996-09-06

Applicant: ABB MANAGEMENT AG

Inventor： NAZMY MOHAMED DR ,  NOSEDA CORRADO ,  ROESLER JOACHIM DR ,  STAUBLI MARKUS

IPC: C21D6/00 ,  C22C19/05 ,  C22C30/00 ,  C22C38/00 ,  C22C38/08 ,  C22F1/10 ,  C21D6/02 ,  C21D1/26

Abstract: The iron-nickel superalloy of the type IN 706 has an addition of 0.02 to 0.3 percent by weight of boron and/or 0.05 to 1.5 percent by weight of hafnium. By means of this addition, a virtual doubling of the ductility is achieved as compared with an addition-free iron-nickel superalloy of the type IN 706, while the hot strength is reduced only slightly. This alloy is particularly suitable as a material for rotors of large gas turbines. It has a sufficiently high hot strength. When locally acting temperature gradients arise unwanted stresses can occur to only a slight extent because of the high ductility of the alloy.

公开(公告)号：PL305673A1

公开(公告)日：1995-05-15

申请号：PL30567394

申请日：1994-11-02

Applicant: ABB MANAGEMENT AG

Inventor： NAZMY MOHAMED ,  NOSEDA CORRADO ,  STAUBLI MARKUS

IPC: F02B39/00 ,  C22C38/00 ,  C22C38/06 ,  C22C38/32 ,  C22C38/34 ,  F01D25/24

Abstract: The iron-aluminum alloy comprises the following constituents in atom percent: -12-18 aluminum -0.1-10 chromium -0.1-2 niobium -0.1-2 silicon -0.1-5 boron -0.01-2 titanium -100-500 ppm carbon -50-200 ppm zirconium - remainder iron. - This alloy is distinguished by high thermal-shock resistance and, at temperatures of 800 DEG C., still has comparatively good mechanical properties. The alloy can be used advantageously in components such as, for example, casings of gas turbines, which, with comparatively low mechanical loading, are subject to frequent thermal cycling.

公开(公告)号：DE4303316A1

公开(公告)日：1994-08-11

申请号：DE4303316

申请日：1993-02-05

Applicant: ABB MANAGEMENT AG

Inventor： NAZMY MOHAMED Y DR ,  NOSEDA CORRADO ,  STAUBLI MARKUS

IPC: C22C38/00 ,  C22C38/06 ,  C22C38/32

Abstract: The alloy is based on doped iron aluminide Fe3Al. It contains the following alloy constituents, in atomic per cent: 24 - 28 of aluminium 0.1 - 2 of niobium, tantalum and/or tungsten 0.1 - 10 of chromium 0.1 - 2 of silicon 0.1 - 5 of boron 0.01 - 2 of titanium the remainder being iron. The alloy is distinguished, even at temperatures above 700@C, by a high oxidation resistance and corrosion resistance and is preferentially used in components which are exposed to oxidising and corroding effects at high temperatures and low mechanical stress.