Titanium - 6% Aluminum - 4% Vanadium Alloy: Effects of Sponge Purity, Aluminum Content and Heat Treatment

1959 ◽  
Author(s):  
L. S. Croan ◽  
F. J. Rizzitano ◽  
W. L. Warner
Keyword(s):  
Heat Treatment ◽  
Aluminum Content ◽  
Vanadium Alloy

Kinetics of Phase Transformations in FeAl(Cr,Si) / Fe3Al(Cr,Si) / Fe(Al,Cr,Si) Laminated Coating on the Cr15Al5 Alloy

2020 ◽  
Vol 992 ◽  
pp. 493-497
Author(s):  
Victor Georgievich Shmorgun ◽  
Artem I. Bogdanov ◽  
Vitaliy P. Kulevich ◽  
V.O. Kharlamov
Keyword(s):  
Heat Treatment ◽  
Phase Transformations ◽  
Test Temperature ◽  
Aluminum Content ◽  
Thermal Action ◽  
Layered Coating ◽  
Laminated Coating ◽  
Kinetics Of

The influence of thermal action at 1150 °C on the kinetics of phase transformations in a layered coating FeAl (Cr,Si) / Fe3Al (Cr,Si) / Fe (Al,Cr,Si), obtained using a technology involving aluminizing of an Cr15Al5 alloy by hot dipping in silumin melt AK12M2 and heat treatment. It was shown that after 100 hours of exposure, the visually distinguishable boundary between the coating and the alloy disappears. The aluminum content in the Cr15Al5 alloy increased to 17 at. %, silicon up to 3 at. %, and chromium is reduced to 14 at. %. The microhardness of the alloy increases from 1.6 to 2.4 GPa and survivability at a test temperature of 1150 °C increases from 120 to at least 920 hours.

RMI 5Al-2.5Sn

Alloy Digest ◽  
1988 ◽  
Vol 37 (2) ◽  
Keyword(s):  
Heat Treatment ◽  
Fracture Toughness ◽  
Aluminum Content ◽  
Heat Treating ◽  
Bend Strength ◽  
Temperature Oxidation ◽  
Temperature Performance ◽  
High Aluminum Content ◽  
Alpha Titanium ◽  
High Aluminum

Abstract RMI 5A1-2.5Sn is an alpha titanium alloy. It is not hardenable by heat treatment. The relatively high aluminum content gives the alloy good strength characteristics and resistance to elevated-temperature oxidation (up to 1100 F). RMI 5A1-2.5Sn is readily weldable. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and bend strength 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, and joining. Filing Code: Ti-90. Producer or source: RMI Company.

HARDTEM

Alloy Digest ◽  
1963 ◽  
Vol 12 (6) ◽  
Keyword(s):  
Heat Treatment ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Vanadium Alloy ◽  
Die Steel ◽  
Temperature Performance

Abstract HARDTEM is a balanced chromium-molybdenum-vanadium alloy die steel furnished in the prehardened condition ready for sinking without further heat treatment by the user. 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-134. Producer or source: Heppenstall Company.

scholarly journals Mathematical model for producing machine parts

2021 ◽  
Vol 264 ◽  
pp. 04078
Author(s):  
Kamolkhon Karimov ◽  
Nodir Turakhodjaev ◽  
Azamat Akhmedov ◽  
Shukhrat Chorshanbiev
Keyword(s):  
Heat Treatment ◽  
Mathematical Model ◽  
Mathematical Models ◽  
Technological Process ◽  
Aluminum Content ◽  
Experimental Studies ◽  
Interpolation Polynomial ◽  
Electroslag Remelting ◽  
Functional Dependencies ◽  
Analytical Studies

In the article, the object of research is the development of a technology for improving the operational properties of cast parts from steel 45, obtained by the method of electroslag remelting. Based on the research results, the modes of heat treatment of the shaft-gear part in an aqueous medium water-oil, heat treatment to increase the service life of the product, and energy-saving melting technology by the method of electroslag remelting were developed. Particular attention is paid to the development and analytical implementation of the mathematical model of the developed technologies by the methods of linear algebra by drawing up the Lagrange interpolation polynomial. Functional dependencies have been obtained for determining the amount of oxygen in the melt depending on the diameter of the electrode and the aluminum content in this electrode for any diameter of the mold, the hardness of the shaft surface depending on its diameter, the oxygen content (amount) in the melt depending on the aluminum content in the electrode for different mold diameters. Based on the developed and analytically implemented mathematical models of the investigated technological process, it seems possible to simplify experimental studies. In other words, based on analytical studies, it is possible to predict the results of subsequent experiments. Based on the developed and analytically implemented mathematical models of the investigated technological process, it seems possible to simplify experimental studies. In other words, based on analytical studies, it is possible to predict the results of subsequent experiments.

Heat Treatment of Centrifugally Cast High-Vanadium Alloy Steel for High-Pressure Grinding Roller

2014 ◽  
Vol 27 (3) ◽  
pp. 430-435 ◽  
Author(s):  
Haizhi Li ◽  
Weiping Tong ◽  
Junjun Cui ◽  
Hui Zhang ◽  
Liqing Chen ◽  
...  
Keyword(s):  
Heat Treatment ◽  
High Pressure ◽  
Alloy Steel ◽  
Vanadium Alloy ◽  
Centrifugally Cast

Relations Between Structure and Texture in Nano-Sized Aluminas

1994 ◽  
Vol 351 ◽  
Author(s):  
Dominique J. Coster ◽  
Pierre Levitz ◽  
Jose J. Fripiat
Keyword(s):  
Heat Treatment ◽  
Aluminum Content ◽  
High Surface ◽  
Aqueous Media ◽  
High Surface Area ◽  
Nitrogen Adsorption ◽  
X Ray Diffraction ◽  
X Ray ◽  
Degree Of Condensation ◽  
High Surface Area Materials

ABSTRACTAlumina xerogels were prepared by a two step hydrolysis in non-aqueous media. This synthesis produced high surface area materials with controlled amount of pentacoordinated aluminum. The effect of heat treatment and of the preparation procedure on the physical characteristics of the powder was determined by nitrogen adsorption and X-Ray diffraction, whereas the aluminum coordination was studied by 27Al MAS NMR. The pore size distribution and the pentahedral aluminum content (up to 700°C) are closely related to the degree of condensation of the prehydrolysed oligomer species.

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