Conversion of manganese-chromium spinel to sulphides in H2-H2O-H2S atmospheres

Abstract ALUMINUM 5056 is a non-heat-treatable wrought aluminum-magnesium-manganese-chromium alloy possessing high strength and ductility along with good hot and cold workability. It is recommended for such applications as rivets and screen wire. It may be used with or without cladding. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fatigue. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Al-126. Producer or source: Various aluminum companies. Originally published June 1963, revised February 1979.

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JESSAIR

Alloy Digest ◽

10.31399/asm.ad.ts0157 ◽

1965 ◽

Vol 14 (1) ◽

Keyword(s):

Heat Treatment ◽

Fracture Toughness ◽

Low Temperature ◽

Physical Properties ◽

Heat Treating ◽

Bend Strength ◽

Steel Company ◽

Temperature Heat ◽

Temperature Heat Treatment ◽

Manganese Chromium

Abstract Jessair is a manganese, chromium, molybdenum alloy steel combining the deep harding characteristics of air-hardening steels with the simplicity of low temperature heat treatment possible in many oil-hardening steels. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and bend strength as well as fracture toughness and fatigue. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-157. Producer or source: Jessop Steel Company.

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Non-isothermal crystallization behavior of spinel crystals in FeO-SiO2-TiO2-V2O3-Cr2O3 slag

Metallurgical Research & Technology ◽

10.1051/metal/2018033 ◽

2018 ◽

Vol 116 (1) ◽

pp. 110

Author(s):

Lixiong Shao ◽

Jiang Diao ◽

Wang Zhou ◽

Tao Zhang ◽

Bing Xie

Keyword(s):

Cooling Rate ◽

Crystallization Behavior ◽

Crystal Size ◽

Growth Mechanisms ◽

Vanadium Slag ◽

Growth Behaviour ◽

Temperature Range ◽

Chromium Spinel ◽

Mean Diameter ◽

The Mean

The growth behaviour of spinel crystals in vanadium slag with high Cr2O3 content was investigated and clarified by statistical analyses based on the Crystal Size Distribution (CSD) theory. The results indicate that low cooling rate and Cr2O3 content benefit the growth of spinel crystals. The chromium spinel crystals firstly precipitated and then acted as the heterogeneous nuclei of vanadium and titanium spinel crystals. The growth mechanisms of the spinel crystals at the cooling rate of 5 K/min consist two regimes: firstly, nucleation control in the temperature range of 1873 to 1773 K, in which the shapes of CSD curves are asymptotic; secondly, surface and supply control within the temperature range of 1773 to 1473 K, in which the shapes of CSD curves are lognormal. The mean diameter of spinel crystals increases from 3.97 to 52.21 µm with the decrease of temperature from 1873 to 1473 K.

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