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Viewing 1 to 30 of 10726
2017-10-08
Technical Paper
2017-01-2357
Mark Devlin, Jeffrey Guevremont, Chip Hewette, Marc Ingram, Grant Pollard, William Wyatt
Abstract Different mechanical components in a vehicle can be made from different steel alloys with various surface treatments or coatings. Lubricant technology is needed to prevent wear and control friction on all of these different surfaces. Phosphorus compounds are the key additives that are used to control wear and they do this by forming tribofilms on surfaces. It has been shown that different operating conditions (pressures and sliding conditions) can influence the formation of tribofilms formed by different anti-wear additives. The effect of surface metallurgy and morphology on tribofilm formation is described in this paper. Our results show that additive technology can form proper tribofilms on various surfaces and the right combination of additives can be found for current and future surfaces.
2017-09-23
WIP Standard
AMS2251J
This specification covers established inch/pound manufacturing tolerances applicable to low-alloy steel bars ordered to inch/pound dimensions. These tolerances apply to all conditions, unless otherwise noted. The term "exclusive " is used to apply only to the higher figure of the specified range.
2017-09-23
WIP Standard
AMS2253F
This specification covers established inch/pound manufacturing tolerances applicable to carbon and alloy tubing ordered to inch/pound dimensions. These tolerances apply to all conditions unless otherwise noted. The term 'excl' is used to apply only to the higher figure of the specified range.
2017-09-23
WIP Standard
AMS6352L
This specification covers an aircraft quality, low alloy steel in the form of sheet, strip, and plate. These products have been used typically for heat treated parts and structures that may require welding during fabrication, but usage is not limited to such applications. It may be through-hardened to a minimum tensile strength of 180 ksi (1241 MPa) in sections 0.125 inch (3.18 mm) and under in nominal thickness and proportionately lower strength in heavier section thicknesses.
2017-09-23
WIP Standard
AMS6346C
This specification covers an aircraft-quality, low-alloy steel in the form of heat treated bars.
2017-09-23
WIP Standard
AMS6348E
This specification covers an aircraft-quality, low-alloy steel in the form of bars. These bars have been used typically for parts, 0.50 inch (12.7 mm) and under in section thickness at time of heat treatment, requiring a through-hardening steel capable of developing hardness as high as 35 HRC when properly hardened and tempered and also parts of greater thickness but requiring proportionately lower hardness, but usage is not limited to such applications.
2017-09-23
WIP Standard
AMS6474B
This specification establishes requirements for steel forgings of any shape or form that finished parts are to be made (See 8.4, 8.5, 8.8.4 and 8.10).
2017-09-23
WIP Standard
AMS6493B
This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock. These products have been used typically for carburized parts requiring high minimum core hardness with a narrow range, reduced distortion and subject to stringent magnetic particle inspection standards, but usage is not limited to such applications.
2017-09-23
WIP Standard
AMS6492B
This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock. These products have been used typically for carburized parts requiring high minimum core hardness with a narrow range, reduced distortion and subject to magnetic particle inspection standards, but usage is not limited to such applications.
2017-09-23
WIP Standard
AMS6496B
This specification covers a nitriding grade of aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock. These products have been used typically for nitrided parts such as bearings, operating under heavy loads and high speeds at moderate temperatures, and subject to rigid inspection standards, and requiring highest surface hardness, high core toughness, and less distortion than parts made from steel requiring quenching to case harden, but usage is not limited to such applications.
2017-09-23
WIP Standard
AMS6497B
This specification covers a nitriding grade of premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock. These products have been used typically for nitrided parts such as bearings, operating under heavy loads and high speeds at moderate temperatures, and subject to very rigid inspection standards, and requiring highest surface hardness, high core toughness, and less distortion than parts made from steel requiring quenching to case harden, but usage is not limited to such applications.
2017-09-23
WIP Standard
AMS6360N
This specification covers an aircraft-quality, low-alloy steel in the form of seamless tubing. This tubing has been typically used in thin wall-thickness sections where minimum tensile strength up to 160,000 psi (1103 MPa) is required and where parts may be welded during fabrication, but usage is not limited to such applications.
2017-09-23
WIP Standard
AMS6448M
This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
2017-09-23
WIP Standard
AMS6544E
This specification covers a maraging steel in the form of rolled or forged plate.
2017-09-23
WIP Standard
AMS6498B
This specification covers a nitriding grade of premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock. These products have been used typically for nitrided parts requiring high minimum core hardness with a narrow range, reduced distortion and subject to stringent magnetic particle inspection standards, but usage is not limited to such applications.
2017-09-23
WIP Standard
AMS6290K
This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, and forging stock. These products have been used typically for carburized parts which require low minimum core hardness and allow a wide hardness range in sections 0.375 in. (9.50 mm) and under in nominal thickness, but usage is not limited to such applications. The core may or may not be machinable after hardening.
2017-09-22
Technical Paper
2017-01-5009
Li Fang, Henry Hu, Xueyuan Nie, Jimi Tjong, Xuezhi Zhang
In the present study, a design of experiment (DOE) technique, the Taguchi method, was used to develop as-cast high strength aluminum alloys with element additions of Si, Cu, Ni and Sr. The Taguchi method uses a special design of orthogonal arrays to study all the designed factors with a minimum of experiments at a relatively low cost. The element factors chosen for this study were Si, Cu, Ni and Sr content in the designed aluminum-based alloys. For each factor, three different levels of weight percentages were selected (Si: 6, 9, 12%, Cu: 3, 5, 7%, Ni: 0.5, 1, 1.5% and Sr: 0.01, 0.02, 0.03%). Tensile properties such as ultimate tensile strength, yield strength and elongation at fracture were selected as three individual responses to evaluate the engineering performance of the designed alloys. The results of the factor response analysis were used to derive the optimal level combinations. The contribution of each factor was determined by an analysis of variance.
2017-09-22
WIP Standard
AMS4900Q
This specification covers one grade of commercially-pure titanium in the form of sheet, strip, and plate.
2017-09-22
WIP Standard
AMS4914G
This specification covers a titanium alloy in the form of sheet and strip up to and including 0.125 inches in thickness. These products have been used typically in applications requiring high strength-to-weight ratio and stability up to 550 °F (288 °C), but usage is not limited to such applications. Parts are typically formed in the solution heat treated condition and subsequently precipitation heat treated to final condition.
2017-09-22
WIP Standard
AMS4919J
This specification covers a titanium alloy in the form of sheet, strip, and plate 0.025 to 3.000 inches (0.64 to 76.20 mm), inclusive, in nominal thickness.
2017-09-22
WIP Standard
AMS4918P
This specification covers a titanium alloy in the form of sheet, strip, and plate up through 4.000 inches (101.60 mm), inclusive.
2017-09-22
WIP Standard
AMSH81200E
This specification covers the heat treatment of titanium and titanium alloy mill products (raw material), including wrought and cast products, by material producers. This specification also covers furnace equipment requirements, test procedures, and general information for heat treating procedures, heat treating temperatures, and material test procedures for the heat treatment of titanium and titanium alloys. It also describes procedures that, when followed, have produced the desired properties within the limitations of the respective alloys.
2017-09-22
WIP Standard
AMS6946D
This specification covers a titanium alloy in the form of sheet, strip, and plate.
2017-09-22
WIP Standard
AMS6945C
This specification covers a titanium alloy in the form of sheet, strip, and plate. <p> These products have been used typically for parts requiring strength up to 750 °F (400 °C), but usage is not limited to such applications.
2017-09-22
WIP Standard
AMS4967M
This specification covers a titanium alloy in the form of bars, wire, forgings, flash welded rings up through 4.000 inches (101.60 mm) in diameter or least distance between parallel sides and stock of any size for forging, heading, or flash welded rings (See 8.6).
2017-09-22
WIP Standard
AMS4989D
This specification covers a titanium alloy in the form of sheet, strip, and plate.
Viewing 1 to 30 of 10726

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