scholarly journals MODIFICATION OF LITHIUM LUBRICANTS

2020 ◽  
pp. 27-31
Keyword(s):  
Tensile Strength ◽  
High Temperature ◽  
Low Temperatures ◽  
Dispersion Medium ◽  
Effective Viscosity ◽  
Total Content ◽  
Physicochemical Characteristics ◽  
Dispersed Phase ◽  
High Tensile Strength ◽  
Complex Lithium

The aim is to study the effect of the presence of free alkalis and acids on the properties of the complex lithium greases and the choice of the optimal dispersion medium, which provides the required physicochemical characteristics of the developed grease. The dispersed phase of lithium greases studied in the polyalphaolefin oils media. It was found that the use of a mixture of polyalphaolefin oil-4 and polyalphaolefin oil-40 as a percentage of 23/77 with a total content of 83.0% provides a relatively low effective viscosity of the lubricant at low temperatures and a relatively high tensile strength at high temperature.

VASCO 9-4-20

Alloy Digest ◽  
1997 ◽  
Vol 46 (10) ◽  
Keyword(s):  
Fracture Toughness ◽  
Tensile Strength ◽  
High Temperature ◽  
Ultimate Tensile Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
High Tensile Strength ◽  
Temperature Performance

Abstract Vasco 9-4-20 (0.20 wt% C) is a premium quality aircraft steel that combines high tensile strength with good fracture toughness. It is a heat-treatable alloy capable of developing an ultimate tensile strength greater than 190 ksi. 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 as well as heat treating, machining, and joining. Filing Code: SA-489. Producer or source: Vasco, An Allegheny Teledyne Company.

Study on Thermal Resistance of Basalt Filament Yarn

2010 ◽  
Vol 146-147 ◽  
pp. 666-669 ◽  
Author(s):  
Xin E Li
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
High Temperature ◽  
Thermal Resistance ◽  
High Performance ◽  
Filament Yarn ◽  
High Tensile Strength ◽  
New Type ◽  
High Temperature Gas ◽  
Basalt Rock

Basalt filament yarn is a new type of high-performance fibers, which is formed by the direct drawing of basalt rock at high temperatures. It is a natural and environmentally friendly textile material. This paper mainly focuses on thermal resistance research of basalt filament yarn that is heated at various temperatures. The change of color and appearance of heated basalt filament yarn was described. The mechanical properties of heated basalt filament yarn were tested. The results showed that although the mechanical properties of basalt filament yarn decreased with the temperature rising, still remained high tensile strength within a certain temperature range. Basalt filament yarn possess higher tenacity under 325°C. Basalt filament yarns still possess certain tenacity when they were placed at 500°C condition. So basalt filament yarn can be used as heat-resistant materials, such as filtration materials for high-temperature gas and liquid, fire-proof fabrics and so on.

Preparation of Ti3Al Based Alloy Expansion Part for Nozzle by Powder Metallurgy

2013 ◽  
Vol 423-426 ◽  
pp. 219-224
Author(s):  
Ze Bao Lang ◽  
Zhong Wei Yin ◽  
Jin Liang Shi ◽  
Feng Zhao
Keyword(s):  
Tensile Strength ◽  
High Temperature ◽  
Powder Metallurgy ◽  
Potential Application ◽  
Low Density ◽  
High Tensile Strength ◽  
Comprehensive Properties ◽  
Good Potential ◽  
Nickel Based Alloy ◽  
Oxidation Resistant

Ti3Al based alloy has performed a comprehensive properties of low density, high tensile strength and excellent oxidation resistant at high temperature, which results in a good potential application in aerospace areas. In this paper, technologies relevant to preparation of Ti-23Al-17Nb expansion part for nozzle have been studied, and main properties of the part have been test and evaluated. The result revealed that Ti3Al based alloy prepared by powder metallurgy can replace nickel based alloy to be a candidate materials for high temperature structures.

A Fast and Low Temperature Eco-Process for Alloy's Joining

2006 ◽  
Vol 510-511 ◽  
pp. 886-889
Author(s):  
Zheng Yi Fu ◽  
D.H. He ◽  
Jing Ying Zhang ◽  
Wei Min Wang ◽  
Hang Wang ◽  
...  
Keyword(s):  
Tensile Strength ◽  
High Temperature ◽  
Temperature Distribution ◽  
Low Temperature ◽  
Holding Time ◽  
Lower Pressure ◽  
Heat Diffusion ◽  
High Tensile Strength ◽  
Joining Process

In this paper, we suggest PCH as a method of joining alloys. The temperature distribution in the samples during the joining process was analyzied. From the temperature distribution profiles in PCH joining, it is concluded that PCH for the joining has two advantages: (1) There is a temperature distribution peak along the sample. The contacting surfaces which need high temperature happen to obtain the highest temperature; (2) The parts to be joined at relatively lower temperatures can avoid the damage of heat attack. The optimal joining conditions were discussed. The PCH and HP techniques were compared for the joining of alloys. It was found that the high tensile strength joined structure of alloys can be fabricated by PCH method at lower joining temperature, shorter holding time, and lower pressure, compared with that by HP method. The PCH process was considered to be an eco-friendly process compared with the traditional heat diffusion joining methods.

HYLITE 60

Alloy Digest ◽  
1968 ◽  
Vol 17 (1) ◽  
Keyword(s):  
Tensile Strength ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Surface Treatment ◽  
Heat Treating ◽  
High Tensile Strength ◽  
Creep Properties ◽  
Temperature Performance ◽  
Beta Alloy

Abstract Hylite 60 is an alpha plus beta alloy having high tensile strength and good creep properties. It is suitable for compressor discs and blades and other highly stressed components up to 500 C. 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, joining, and surface treatment. Filing Code: Ti-54. Producer or source: Jessop-Saville Ltd, Brightside Works.

VASCO 9-4-30

Alloy Digest ◽  
1997 ◽  
Vol 46 (12) ◽  
Keyword(s):  
Fracture Toughness ◽  
Tensile Strength ◽  
Shear Strength ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
High Tensile Strength ◽  
Temperature Performance

Abstract Vasco 9-4-30 (0.30 wt% C) is a premium quality aircraft steel which combines high tensile strength with good fracture toughness. It is a heat treatable alloy capable of developing ultimate tensile strengths greater than 250 ksi. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fracture toughness. It also includes information on high temperature performance as well as heat treating, machining, and joining. Filing Code: SA-491. Producer or source: Vasco, An Allegheny Teledyne Company.

RYCROME

Alloy Digest ◽  
1953 ◽  
Vol 2 (3) ◽  
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Tensile Strength ◽  
High Temperature ◽  
Impact Resistance ◽  
Heat Treating ◽  
High Tensile Strength ◽  
Temperature Performance ◽  
Heat Treated ◽  
Steel Heat

Abstract RYCROME is a chromium-molybdenum alloy steel heat treated to definite minimum mechanical properties. The combination of high tensile strength and good ductility give this alloy good shock and impact resistance. 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 low and high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: SA-8. Producer or source: Joseph T. Ryerson & Son Inc. (Distributor).

High Temperature Properties of Ti3SiC2-SiC Composites

2010 ◽  
Vol 105-106 ◽  
pp. 222-225
Author(s):  
De Gui Zhu ◽  
Hui Yi Tang ◽  
Hong Liang Sun ◽  
Shuang Quan Guo
Keyword(s):  
Tensile Strength ◽  
High Temperature ◽  
Composite Materials ◽  
Hot Isostatic Pressing ◽  
In Situ Synthesis ◽  
Secondary Creep ◽  
High Tensile Strength ◽  
Sic Composites ◽  
Creep Regime

Fully dense Ti3SiC2-64vol.%SiC(0.5m) composite materials are successfully fabricated by in situ synthesis under hot isostatic pressing. The high temperature flexure, tension and creep of Ti3SiC2-SiC composites were studied, and the results indicated that the composite had a high tensile strength under high temperature. Above 1000°C the composite were displayed a good high temperature plastic. The creep behavior is characterized by two regimes: an initial transient regime, where έ(dε/dt) decreases with t (time); a secondary creep regime in which έ is more or less constant with time.

NICROFER 6025H

Alloy Digest ◽  
2003 ◽  
Vol 52 (7) ◽  
Keyword(s):  
Grain Size ◽  
Tensile Strength ◽  
High Temperature ◽  
Physical Properties ◽  
Low Cycle Fatigue ◽  
Heat Treating ◽  
Cycle Fatigue ◽  
High Tensile Strength ◽  
Temperature Performance

Abstract Nicrofer 6025H is an austenitic annealed version of 6025HT (see Alloy Digest Ni-523, April 1997) with finer grain size and better formability. It also possesses an advantage in low-cycle fatigue. The high tensile strength is combined with good weldability. This datasheet provides information on composition, physical properties, and elasticity as well as creep. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: Ni-609. Producer or source: ThyssenKrupp VDM GmbH.

S.A.P.-865

Alloy Digest ◽  
1965 ◽  
Vol 14 (8) ◽  
Keyword(s):  
Tensile Strength ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Room Temperature ◽  
Elevated Temperatures ◽  
Engineering Properties ◽  
Powder Metal ◽  
High Tensile Strength ◽  
Temperature Performance ◽  
Sintered Aluminum

Abstract SAP is a special Sintered Aluminum Powder characterized by high tensile strength at room temperature and at elevated temperatures. It features a range of useful engineering properties. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep and fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, machining, joining, and powder metal forms. Filing Code: Al-146. Producer or source: Aluminium Industrie Atkiengesellschaft.

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