Microstructural development during ageing of an 11% chromium steel alloyed with copper

2001 ◽  
Vol 318 (1-2) ◽  
pp. 94-101 ◽  
Author(s):  
Mats Hättestrand ◽  
Hans-Olof Andrén
Keyword(s):  
Chromium Steel ◽  
Microstructural Development

Microstructural Development in Nb-Ti Multifilamentary Superconductors During Processing

1985 ◽  
Vol 43 ◽  
pp. 190-191
Author(s):  
A. W. West
Keyword(s):  
Heat Treatment ◽  
Critical Current Density ◽  
Copper Matrix ◽  
Wire Drawing ◽  
Heat Treatments ◽  
Microstructural Development ◽  
Final Size ◽  
Density Values ◽  
The Wire ◽  
Multifilamentary Superconductors

The influence of the filament microstructure on the critical current density values, Jc, of Nb-Ti multifilamentary superconducting composites has been well documented. However the development of these microstructures during composite processing is still under investigation.During manufacture, the multifilamentary composite is given several heat treatments interspersed in the wire-drawing schedule. Typically, these heat treatments are for 5 to 80 hours at temperatures between 523 and 573K. A short heat treatment of approximately 3 hours at 573K is usually given to the wire at final size. Originally this heat treatment was given to soften the copper matrix, but recent work has shown that it can markedly change both the Jc value and microstructure of the composite.

Processing and characterization of YBa2Cu3O7−x/Ag composites

1990 ◽  
Vol 48 (4) ◽  
pp. 46-47
Author(s):  
Jafar Javadpour ◽  
Bradley L. Thiel ◽  
Sarikaya Mehmet ◽  
Ilhan A. Aksay
Keyword(s):  
Composite System ◽  
Precursor Solution ◽  
Microstructural Development ◽  
Superconducting Properties ◽  
Practical Applications ◽  
Nitrate Precursor ◽  
Cold Pressed ◽  
Tape Cast ◽  
Composite Samples

Practical applications of bulk YBa2Cu3O7−x materials have been limited because of their inadequate critical current density (jc) and poor mechanical properties. Several recent reports have indicated that the addition of Ag to the YBa2Cu3O7−x system is beneficial in improving both mechanical and superconducting properties. However, detailed studies concerning the effect of Ag on the microstructural development of the cermet system have been lacking. Here, we present some observations on the microstructural evolution in the YBa2Cu3O7−x/Ag composite system.The composite samples were prepared by mixing various amounts (2.5 - 50 wt%) AgNO3 in the YBa2Cu3O7−x nitrate precursor solution. These solutions were then spray dried and the resulting powders were either cold pressed or tape cast. The microstructures of the sintered samples were analyzed using SEM (Philips 515) and an analytical TEM (Philips 430T).The SEM micrographs of the compacts with 2.5 and 50 wt% Ag addition sintered at 915°C (below the melting point of Ag) for 1 h in air are displayed in Figs. 1 and 2, respectively.

CARPENTER STAINLESS No. 2 MOLD STEEL

Alloy Digest ◽  
1979 ◽  
Vol 28 (8) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Chromium Steel ◽  
Long Run

Abstract Carpenter Stainless No. 2 Mold Steel is a 13% chromium steel ideally suited for long-run molding jobs. It is specifically used for protection against the following corrosive conditions: (1) Rusting of cavities when machines are shut down or molds are stored, (2) Rusting of mold cavities when using corrosive plastics, and (3) Corrosion problems when molds are used in hot, humid climates. In addition to resisting the above corrosive conditions, users have found that this steel has many other cost-reducing advantages for applications where corrosion is not involved. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and machining. Filing Code: SS-367. Producer or source: Carpenter.

NIROSTA 4002

Alloy Digest ◽  
2002 ◽  
Vol 51 (6) ◽  
Keyword(s):  
Hydrogen Sulfide ◽  
High Temperature ◽  
Physical Properties ◽  
Structural Steel ◽  
Oil Industry ◽  
Heat Treating ◽  
Mineral Oil ◽  
Chromium Steel ◽  
Temperature Performance ◽  
High Level

Abstract NIROSTA 4002 is an apparatus structural steel with 13% Cr. It is used for crack-resistant installations in the mineral oil industry because it has a high level of resistance against hydrogen and hydrogen sulfide. This chromium steel requires a smoothened surface free from residues in order to achieve optimal resistance to corrosion. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: SS-856. Producer or source: ThyssenKrupp Nirosta GmbH.

AISI TYPE 440B

Alloy Digest ◽  
1969 ◽  
Vol 18 (4) ◽  
Keyword(s):  
Fracture Toughness ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Heat Treating ◽  
Chromium Steel ◽  
Ball Bearings ◽  
High Carbon ◽  
High Chromium ◽  
Steel Mills ◽  
Aisi Type

Abstract AISI Type 440B is a hardenable high-carbon high-chromium steel recommended stainless for cutlery, valve parts, ball bearings, pivot pins, etc. This datasheet provides information on composition, physical properties, microstructure, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-223. Producer or source: Stainless steel mills.

AISI TYPE 442

Alloy Digest ◽  
1966 ◽  
Vol 15 (10) ◽  
Keyword(s):  
Fracture Toughness ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Heat Treating ◽  
Chromium Steel ◽  
General Purpose ◽  
Steel Mills ◽  
Temperature Performance ◽  
Aisi Type

Abstract AISI Type 442 is a non-hardenable ferritic chromium steel recommended for general purpose corrosion and heat resisting applications. It is magnetic in all conditions. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-187. Producer or source: Stainless steel mills.

ALLEGHENY LUDLUM MF-2

Alloy Digest ◽  
1972 ◽  
Vol 21 (4) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Chromium Steel ◽  
Automobile Exhaust ◽  
Temperature Performance ◽  
Exhaust Systems

Abstract ALLEGHENY LUDLUM MF-2 is a 12% chromium steel that was developed initially for use in automobile exhaust systems. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-270. Producer or source: Allegheny Ludlum Corporation.

AISI 5117

Alloy Digest ◽  
1980 ◽  
Vol 29 (9) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Alloy Steel ◽  
Heat Treating ◽  
Chromium Steel ◽  
Low Carbon ◽  
Steel Mills ◽  
Medium Strength

Abstract AISI 5117 is a low-carbon, low-chromium steel for carburizing and other uses. It is recommended for carburizing applications where it is sufficient to have a low-hardenability core of medium strength and toughness combined with a hard, wear-resistant carburized case. It is used without carburizing in the as-rolled, annealed, normalized or quenched-and-tempered condition. It is suitable for use in the automotive, farm-machinery and many other industries. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SA-376. Producer or source: Alloy steel mills and foundries.

ALLEGHENY LUDLUM STAINLESS TYPE 440A

Alloy Digest ◽  
1955 ◽  
Vol 4 (12) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
High Hardness ◽  
Heat Treating ◽  
Chromium Steel ◽  
High Carbon

Abstract ALLEGHENY LUDLUM STAINLESS TYPE 440A is a hardenable high-carbon chromium steel designed to provide stainless properties with high hardness. This datasheet provides information on composition, physical properties, microstructure, hardness, elasticity, and tensile properties as well as fracture toughness and fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-38. Producer or source: Allegheny Ludlum Corporation.

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