Catalytic preparation of carbon nanotube/SiC whisker bonded low carbon MgO–C refractories and their high-temperature mechanical properties

AbstractThe high-temperature mechanical properties of twinning-induced plasticity (TWIP) steel with 0.05 % C, 25 % Mn, 3 % Al, 3 % Si have been investigated using the GLEEBLE 3500 machine. The result shows that the zero ductility temperature and the zero strength temperature of the TWIP steel are measured at 1,225 °C and 1,275 °C, respectively. The brittleness temperature interval I is from 1,200 °C to the melting point, and the brittleness temperature interval III is from 650 °C to 800 °C. The tensile fracture has been examined using the scanning electron microscope, optical microscope and electron backscatter diffraction to determine the fracture mechanisms. The result shows that the twin is not the main influencing factor of the high-temperature plasticity of TWIP steel. Instead, the degree of dynamic recrystallization determines its high-temperature plasticity. A small number of AlN particles are found near the fractures, but these particles are so coarse, therefore, have no influence on the brittle fracture, and ferrite transformation and work hardening are the main reasons that cause the brittle fracture.

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Improvement of High-Temperature Mechanical Properties of Low-Carbon RAFM Steel by MX Precipitates

Acta Metallurgica Sinica (English Letters) ◽

10.1007/s40195-018-0703-y ◽

2018 ◽

Vol 31 (7) ◽

pp. 706-712 ◽

Cited By ~ 13

Author(s):

Jianguo Chen ◽

Yongchang Liu ◽

Yantong Xiao ◽

Yihuan Liu ◽

Chenxi Liu ◽

...

Keyword(s):

Mechanical Properties ◽

High Temperature ◽

Low Carbon ◽

High Temperature Mechanical Properties ◽

Rafm Steel

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TEM Studies of Grain Boundary Films in Si3N4 Ceramics

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100088968 ◽

1991 ◽

Vol 49 ◽

pp. 930-931

Author(s):

H.-J. Kleebe ◽

J.S. Vetrano ◽

J. Bruley ◽

M. Rühle

Keyword(s):

Mechanical Properties ◽

High Temperature ◽

Silicon Nitride ◽

Hot Isostatic Pressing ◽

Amorphous Film ◽

Liquid Phase Sintering ◽

Second Phase ◽

High Temperature Mechanical Properties ◽

Triple Points ◽

Boundary Films

It is expected that silicon nitride based ceramics will be used as high-temperature structural components. Though much progress has been made in both processing techniques and microstructural control, the mechanical properties required have not yet been achieved. It is thought that the high-temperature mechanical properties of Si3N4 are limited largely by the secondary glassy phases present at triple points. These are due to various oxide additives used to promote liquid-phase sintering. Therefore, many attempts have been performed to crystallize these second phase glassy pockets in order to improve high temperature properties. In addition to the glassy or crystallized second phases at triple points a thin amorphous film exists at two-grain junctions. This thin film is found even in silicon nitride formed by hot isostatic pressing (HIPing) without additives. It has been proposed by Clarke that an amorphous film can exist at two-grain junctions with an equilibrium thickness.

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High Temperature Mechanical Properties of IN 713C Alloy Fabricated by Metal Injection Molding Process

Korean Journal of Metals and Materials ◽

10.3365/kjmm.2014.52.5.327 ◽

2014 ◽

Vol 52 (5) ◽

pp. 327-334 ◽

Cited By ~ 6

Author(s):

Min Chul Shim ◽

Kyu Sik Kim ◽

Kyu Sang Cho ◽

Ji Sik Kim ◽

Kee Ahn Lee

Keyword(s):

Mechanical Properties ◽

High Temperature ◽

Injection Molding ◽

Metal Injection Molding ◽

Injection Molding Process ◽

Molding Process ◽

High Temperature Mechanical Properties

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BERYLCO NICKEL ALLOY 440

Alloy Digest ◽

10.31399/asm.ad.ni0094 ◽

1975 ◽

Vol 24 (9) ◽

Keyword(s):

Mechanical Properties ◽

High Temperature ◽

Nickel Alloy ◽

High Strength ◽

Heat Treating ◽

Electronic Components ◽

High Temperature Mechanical Properties ◽

Temperature Performance ◽

Solution Treated ◽

Complex Shapes

Abstract BERYLCO NICKEL ALLOY 440 is an age-hardenable nickel-beryllium-titanium alloy that offers high strength, excellent spring properties outstanding formability, good high-temperature mechanical properties, and resistance to corrosion and fatigue. Complex shapes can be produced in the solution-treated (soft) condition and then aged to a minimum tensile strength of 215,500 psi. It is used for mechanical and electrical/electronic components in the temperature range -320 to 800 F. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. 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-94. Producer or source: Kawecki Berylco Industries Inc.. Originally published September 1964, revised September 1975.

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HASTELLOY ALLOY S

Alloy Digest ◽

10.31399/asm.ad.ni0184 ◽

1973 ◽

Vol 22 (1) ◽

Keyword(s):

Mechanical Properties ◽

High Temperature ◽

Heat Treating ◽

High Temperature Alloy ◽

Excellent Thermal Stability ◽

Cabot Corporation ◽

High Temperature Mechanical Properties ◽

Temperature Performance ◽

Resistance To Oxidation ◽

Nickel Base

Abstract HASTELLOY alloy S is a nickel-base high-temperature alloy having excellent thermal stability, good high-temperature mechanical properties and excellent resistance to oxidation up to 2000 F. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-184. Producer or source: Stellite Division, Cabot Corporation.

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