Fibrous composites with high melting-point matrices

1970 ◽  
Vol 319 (1536) ◽  
pp. 33-44 ◽  
Keyword(s):  
High Temperature ◽  
Epoxy Resins ◽  
Base Alloy ◽  
High Temperature Strength ◽  
High Melting Point ◽  
Temperature Capability ◽  
Strength And Stiffness ◽  
Nickel Base ◽  
Fibre Matrix ◽  
Selection Of

It is now well established that the strength and stiffness of materials such as epoxy resins and aluminium can be increased by the incorporation of suitable fibres. However, relatively little effort has been made to improve similarly the high temperature strength of materials intended for service above ca . 800°C. This paper is introduced with a general examination of fibre/matrix systems that offer improved high temperature capability over current materials, with reference to gas turbine blade applications. The importance of properties and characteristics that influence the selection of suitable fibre and matrix combinations, for example, density, strength, oxidation resistance and compatibility, are discussed. Experi­mental work on the strength of potentially useful fibres such as refractory metal and alumina filaments, their incorporation into nickel-base alloy matrices using vacuum-casting techniques, and the evaluation of composites are described. In terms of the measured properties and of strength predictions based on fibre and matrix data, the merits and limitations of composites relative to well-developed alloys strengthened by precipitation mechanisms are considered.

ALLOY VMS-513

Alloy Digest ◽  
1975 ◽  
Vol 24 (1) ◽  
Keyword(s):  
High Temperature ◽  
Base Alloy ◽  
Heat Treating ◽  
Corrosion And Wear ◽  
Operating Conditions ◽  
High Temperature Strength ◽  
Nickel Base Alloy ◽  
Good Resistance ◽  
Temperature Performance ◽  
Nickel Base

Abstract ALLOY VMS-513 is a nickel-base alloy developed to meet the tough operating conditions of gasoline and diesel engines. It combines high-temperature strength with good resistance to corrosion and wear, plus good fatigue strength. It is used in valves for gasoline-fueled industrial engines. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance, corrosion and wear resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-213. Producer or source: Simonds Steel Division, Wallace-Murray Corporation.

UDIMET 720

Alloy Digest ◽  
2004 ◽  
Vol 53 (4) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Base Alloy ◽  
Heat Treating ◽  
High Temperature Strength ◽  
Nickel Base Alloy ◽  
Temperature Performance ◽  
Nickel Base ◽  
Udimet 720

Abstract Udimet 720 is a nickel-base alloy used in turbine blade and disk applications requiring high-temperature strength and structural stability. This datasheet provides information on composition microstructure as well as fracture toughness and creep. It also includes information on high temperature performance and corrosion resistance as well as heat treating. Filing Code: Ni-620. Producer or source: Special Metals Corporation.

HAYNES ALLOY No. 718

Alloy Digest ◽  
1988 ◽  
Vol 37 (8) ◽  
Keyword(s):  
High Temperature ◽  
Precipitation Hardening ◽  
Base Alloy ◽  
Heat Treating ◽  
Vacuum Arc ◽  
High Temperature Strength ◽  
Vacuum Melting ◽  
Temperature Performance ◽  
Nickel Base ◽  
Haynes Alloy

Abstract HAYNES alloy No. 718 is a precipitation-hardening nickel-base alloy with good ductility and excellent high-temperature strength and oxidation resistance. It is produced by vacuum melting and consumable electrode remelting, either electroslag or vacuum arc. The alloy welds readily and it excels in resisting post-weld (strain-age) cracking. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, and joining. Filing Code: Ni-359. Producer or source: Haynes International Inc..

HAYNES ALLOY No. 230

Alloy Digest ◽  
1985 ◽  
Vol 34 (8) ◽  
Keyword(s):  
Thermal Stability ◽  
High Temperature ◽  
Base Alloy ◽  
Heat Treating ◽  
High Temperature Strength ◽  
Nickel Base Alloy ◽  
Cabot Corporation ◽  
Temperature Performance ◽  
Nickel Base ◽  
Haynes Alloy

Abstract HAYNES Alloy No. 230 is essentially a cobalt-free, nickel-base alloy with outstanding high-temperature strength, oxidation resistance and thermal stability. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance as well as forming, heat treating, and joining. Filing Code: Ni-320. Producer or source: Cabot Corporation.

Influence of Thermo-Mechanical Processing on the Microstructure of Beryllia Dispersed Nickel Alloys

1973 ◽  
Vol 31 ◽  
pp. 184-185
Author(s):  
M.S. Grewal ◽  
S.A. Sastri ◽  
N.J. Grant
Keyword(s):  
High Temperature ◽  
Nickel Alloys ◽  
Thermomechanical Processing ◽  
Cold Work ◽  
High Temperature Strength ◽  
Strengthening Effect ◽  
Mechanical Processing ◽  
Uniform Dispersion ◽  
Oxide Particles ◽  
Nickel Base

Currently there is a great interest in developing nickel base alloys with fine and uniform dispersion of stable oxide particles, for high temperature applications. It is well known that the high temperature strength and stability of an oxide dispersed alloy can be greatly improved by appropriate thermomechanical processing, but the mechanism of this strengthening effect is not well understood. This investigation was undertaken to study the dislocation substructures formed in beryllia dispersed nickel alloys as a function of cold work both with and without intermediate anneals. Two alloys, one Ni-lv/oBeo and other Ni-4.5Mo-30Co-2v/oBeo were investigated. The influence of the substructures produced by Thermo-Mechanical Processing (TMP) on the high temperature creep properties of these alloys was also evaluated.

Microstructural characterization of plasma-processed Ti-Al metal matrix composites

1989 ◽  
Vol 47 ◽  
pp. 552-553
Author(s):  
M. G. Burke ◽  
M. N. Gungor ◽  
M. A. Burke
Keyword(s):  
High Temperature ◽  
Titanium Aluminide ◽  
Plasma Processing ◽  
Microstructural Characterization ◽  
High Temperature Strength ◽  
Matrix Composites ◽  
Intermetallic Matrix ◽  
Long Time ◽  
Strength And Stiffness ◽  
Intermetallic Matrix Composites

Intermetallic matrix composites are candidates for ultrahigh temperature service when light weight and high temperature strength and stiffness are required. Recent efforts to produce intermetallic matrix composites have focused on the titanium aluminide (TiAl) system with various ceramic reinforcements. In order to optimize the composition and processing of these composites it is necessary to evaluate the range of structures that can be produced in these materials and to identify the characteristics of the optimum structures. Normally, TiAl materials are difficult to process and, thus, examination of a suitable range of structures would not be feasible. However, plasma processing offers a novel method for producing composites from difficult to process component materials. By melting one or more of the component materials in a plasma and controlling deposition onto a cooled substrate, a range of structures can be produced and the method is highly suited to examining experimental composite systems. Moreover, because plasma processing involves rapid melting and very rapid cooling can be induced in the deposited composite, it is expected that processing method can avoid some of the problems, such as interfacial degradation, that are associated with the relatively long time, high temperature exposures that are induced by conventional processing methods.

ALTEMP HX

Alloy Digest ◽  
1993 ◽  
Vol 42 (10) ◽  
Keyword(s):  
Heat Treatment ◽  
Solid Solution ◽  
Fracture Toughness ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Base Alloy ◽  
Heat Treating ◽  
Nickel Base Alloy ◽  
Temperature Performance ◽  
Nickel Base

Abstract ALTEMP HX is an austenitic nickel-base alloy designed for outstanding oxidation and strength at high temperatures. The alloy is solid-solution strengthened. Applications include uses in the aerospace, heat treatment and petrochemical markets. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, and joining. Filing Code: Ni-442. Producer or source: Allegheny Ludlum Corporation.

DELORO 716 PM

Alloy Digest ◽  
1993 ◽  
Vol 42 (7) ◽  
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Base Alloy ◽  
Nickel Base Alloy ◽  
Temperature Performance ◽  
Nickel Base

Abstract DELORO 716 PM is a nickel-base alloy recommended for handling conditions of wear, erosion, heat and corrosion when impact is also a consideration. This datasheet provides information on composition, physical properties, and hardness. It also includes information on high temperature performance and wear resistance as well as machining and joining. Filing Code: Ni-435. Producer or source: Deloro Stellite Inc.

MAR-M Alloy 200

Alloy Digest ◽  
1965 ◽  
Vol 14 (11) ◽  
Keyword(s):  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Turbine Blade ◽  
Base Alloy ◽  
Heat Treating ◽  
Nickel Base Alloy ◽  
Temperature Performance ◽  
Nickel Base

Abstract MAR-M Alloy 200 is a nickel-base alloy designed primarily as a cast turbine blade material which retains useful strength up to 1900 F. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on high temperature performance as well as heat treating and joining. Filing Code: Ni-107. Producer or source: Martin Metals Company.

INCONEL ALLOY 722

Alloy Digest ◽  
1965 ◽  
Vol 14 (4) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Base Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Age Hardening ◽  
Nickel Base Alloy ◽  
Inconel Alloy ◽  
Temperature Performance ◽  
Nickel Base

Abstract INCONEL Alloy 722, formerly Inconel W alloy, is a high strength, high-temperature nickel-base alloy responding to age hardening heat treatments for maximum properties. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep and fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-100. Producer or source: Huntington Alloy Products Division, An INCO Company.

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