scholarly journals High Temperature Performance of Spark Plasma Sintered W0.5(TaTiVCr)0.5 Alloy

Metals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1512 ◽  
Author(s):  
Sajid Alvi ◽  
Owais Ahmed Waseem ◽  
Farid Akhtar
Keyword(s):  
Wear Resistance ◽  
Compressive Strength ◽  
High Temperature ◽  
Phase Stability ◽  
Tungsten Alloy ◽  
Compressive Yield Strength ◽  
High Temperature Strength ◽  
Secondary Phases ◽  
High Temperature Xrd ◽  
Spark Plasma

The phase stability, compressive strength, and tribology of tungsten alloy containing low activation elements, W0.5(TaTiVCr)0.5, at elevated temperature up to 1400 °C were investigated. The spark plasma sintered W0.5(TaTiVCr)0.5 alloy showed body centered cubic (BCC) structure, which was stable up to 1400 °C using in-situ high temperature XRD analysis and did not show formation of secondary phases. The W0.5(TaTiVCr)0.5 alloy showed exceptionally high compressive yield strength of 1136 ± 40 MPa, 830 ± 60 MPa and 425 ± 15 MPa at 1000 °C, 1200 °C and 1400 °C, respectively. The high temperature tribology at 400 °C showed an average coefficient of friction (COF) and low wear rate of 0.55 and 1.37 × 10−5 mm3/Nm, respectively. The superior compressive strength and wear resistance properties were attributed to the solid solution strengthening of the alloy. The low activation composition, high phase stability, superior high temperature strength, and good wear resistance at 400 °C of W0.5(TaTiVCr)0.5 suggest its potential utilization in extreme applications such as plasma facing materials, rocket nozzles and industrial tooling.

STOODY 4

Alloy Digest ◽  
1977 ◽  
Vol 26 (4) ◽  
Keyword(s):  
Solid Solution ◽  
Compressive Strength ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Heat Treating ◽  
Tungsten Alloy ◽  
High Temperature Strength ◽  
Cobalt Chromium ◽  
Temperature Performance

Abstract STOODY 4 is a cobalt-chromium-tungsten alloy with excellent high-temperature strength and excellent resistance to corrosion. This alloy derives its high-temperature strength from the high tungsten-to-carbon ratio which allows a large percentage of tungsten to remain in solid solution. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength. It also includes information on high temperature performance and corrosion resistance as well as heat treating, machining, and joining. Filing Code: Co-75. Producer or source: WRAP Division, Stoody Company.

Application of TEM to Deformation, Wear, and Fracture of Ceramics

1974 ◽  
Vol 32 ◽  
pp. 472-473
Author(s):  
B. J. Hockey
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Mechanical Behavior ◽  
Brittle Materials ◽  
High Temperature Strength ◽  
Wide Range ◽  
Corrosive Environments ◽  
Further Development

Ceramics, such as Al2O3 and SiC have numerous current and potential uses in applications where high temperature strength, hardness, and wear resistance are required often in corrosive environments. These materials are, however, highly anisotropic and brittle, so that their mechanical behavior is often unpredictable. The further development of these materials will require a better understanding of the basic mechanisms controlling deformation, wear, and fracture.The purpose of this talk is to describe applications of TEM to the study of the deformation, wear, and fracture of Al2O3. Similar studies are currently being conducted on SiC and the techniques involved should be applicable to a wide range of hard, brittle materials.

CARPENTER T-K

Alloy Digest ◽  
1969 ◽  
Vol 18 (5) ◽  
Keyword(s):  
Wear Resistance ◽  
Compressive Strength ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Elevated Temperatures ◽  
Heat Treating ◽  
Extrusion Dies ◽  
Temperature Performance ◽  
Red Hardness

Abstract Carpenter T-K is a tungsten-chromium type hot-work steel having good red-hardness and resistance to abrasion. It will withstand high operating temperatures up to 1000 F for long periods. It is recommended for hot shear blades, forging and extrusion dies, hot compression tools, and similar applications where high compressive strength and wear resistance at elevated temperatures are required. 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: TS-219. Producer or source: Carpenter.

THYROTHERM 2999

Alloy Digest ◽  
2008 ◽  
Vol 57 (5) ◽  
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Heat Treating ◽  
High Temperature Strength ◽  
Temperature Performance

Abstract Thyrotherm 2999 exhibits high-temperature strength with wear resistance. This datasheet provides information on composition, physical properties, and hardness. It also includes information on high temperature performance as well as forming and heat treating. Filing Code: TS-665. Producer or source: Schmolz + Bickenbach USA Inc.

UDDEHOLM SVERKER 3

Alloy Digest ◽  
2020 ◽  
Vol 69 (8) ◽  
Keyword(s):  
Wear Resistance ◽  
Compressive Strength ◽  
Abrasive Wear ◽  
Cold Work ◽  
Heat Treating ◽  
Abrasive Wear Resistance ◽  
Tungsten Alloy ◽  
High Carbon ◽  
Long Run ◽  
Cold Work Tool Steel

Abstract Uddeholm Sverker 3 is a high-carbon, chromium-tungsten, alloy cold-work tool steel. It is suitable for medium and long run tooling in applications where a very good abrasive wear resistance is needed. Uddeholm Sverker 3 contains large carbides, which are advantageous for abrasive wear resistance but which reduce chipping resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and compressive strength. It also includes information on heat treating. Filing Code: TS-797. Producer or Source: Uddeholms AB.

scholarly journals Effect of Mo Addition on Phase Stability and High-Temperature Strength of NbSi2/Nb5Si3 Composites

2004 ◽  
Vol 45 (12) ◽  
pp. 3282-3285 ◽  
Author(s):  
Wei Li ◽  
Haibo Yang ◽  
Aidang Shan ◽  
Lanting Zhang ◽  
Jiansheng Wu
Keyword(s):  
High Temperature ◽  
Phase Stability ◽  
High Temperature Strength

Fabrication and properties of HfB2–MoSi2 composites produced by hot pressing and spark plasma sintering

2006 ◽  
Vol 21 (6) ◽  
pp. 1460-1466 ◽  
Author(s):  
Diletta Sciti ◽  
Laura Silvestroni ◽  
Alida Bellosi
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Flexural Strength ◽  
Spark Plasma Sintering ◽  
Hot Pressing ◽  
Processing Technique ◽  
High Temperature Strength ◽  
Powder Mixtures ◽  
Plasma Sintering ◽  
Spark Plasma

HfB2–15 vol% MoSi2 composites were produced from powder mixtures and densified through different techniques, namely hot pressing and spark plasma sintering. Dense materials were obtained at 1900 °C by hot pressing and at 1750 °C by spark plasma sintering. Microstructure and mechanical properties were compared. The most relevant result was for high-temperature strength: independent of the processing technique, the flexural strength in air at 1500 °C was higher than 500 MPa.

Effect of molybdenum substitution on phase stability and high-temperature strength of Fe3 Al alloys

1998 ◽  
Vol 78 (2) ◽  
pp. 97-103 ◽  
Author(s):  
Y. Nishino ◽  
B.J. Inkson ◽  
T. Ogawa ◽  
C.J. Humphreys
Keyword(s):  
High Temperature ◽  
Phase Stability ◽  
Al Alloys ◽  
High Temperature Strength
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