Repeated-static endurance of OT4 sheet alloy with an incompletely removed surface gas saturated layer

1990 ◽  
Vol 25 (5) ◽  
pp. 548-550 ◽  
Author(s):  
A. B. Kolomenskii ◽  
B. A. Kolachev ◽  
A. N. Roshchupkin ◽  
A. V. Degtyarev
Keyword(s):  
Sheet Alloy ◽  
Saturated Layer

ALCOA ALLOY 2090-T83

Alloy Digest ◽  
2000 ◽  
Vol 49 (7) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Low Density ◽  
Sheet Alloy ◽  
Aerospace Applications ◽  
Aluminum Lithium

Abstract Alcoa alloy 2090-T83 is an aluminum-lithium sheet alloy with a combination of strength, low density, and corrosion resistance. The alloy is used in aerospace applications. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness and fatigue. It also includes information on corrosion resistance as well as joining. Filing Code: AL-371. Producer or source: Alcoa Mill Products Inc.

MST 8Mn

Alloy Digest ◽  
1958 ◽  
Vol 7 (8) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Shear Strength ◽  
High Temperature ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Elevated Temperatures ◽  
Heat Treating ◽  
Sheet Alloy ◽  
Temperature Performance

Abstract MST 8Mn is a heat treatable sheet alloy having good formability and recommended for use at moderately elevated temperatures. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength 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-17. Producer or source: Mallory-Sharon Titanium Corporation.

scholarly journals Using one filter stage of unsaturated/saturated vertical flow filters for nitrogen removal and footprint reduction of constructed wetlands

2017 ◽  
Vol 76 (1) ◽  
pp. 124-133 ◽  
Author(s):  
Ania Morvannou ◽  
Stéphane Troesch ◽  
Dirk Esser ◽  
Nicolas Forquet ◽  
Alain Petitjean ◽  
...  
Keyword(s):  
Constructed Wetlands ◽  
Oxygen Demand ◽  
Pollutant Removal ◽  
Operating Conditions ◽  
Vertical Flow ◽  
Saturated Layer ◽  
Recirculation Rate ◽  
Total Filtration ◽  
Filtration Area ◽  
Stage System

French vertical flow constructed wetlands (VFCW) treating raw wastewater have been developed successfully over the last 30 years. Nevertheless, the two-stage VFCWs require a total filtration area of 2–2.5 m2/P.E. Therefore, implementing a one-stage system in which treatment performances reach standard requirements is of interest. Biho-Filter® is one of the solutions developed in France by Epur Nature. Biho-Filter® is a vertical flow system with an unsaturated layer at the top and a saturated layer at the bottom. The aim of this study was to assess this new configuration and to optimize its design and operating conditions. The hydraulic functioning and pollutant removal efficiency of three different Biho-Filter® plants commissioned between 2011 and 2012 were studied. Outlet concentrations of the most efficient Biho-Filter® configuration are 70 mg/L, 15 mg/L, 15 mg/L and 25 mg/L for chemical oxygen demand (COD), 5-day biological oxygen demand (BOD5), total suspended solids (TSS) and total Kjeldahl nitrogen (TKN), respectively. Up to 60% of total nitrogen is removed. Nitrification efficiency is mainly influenced by the height of the unsaturated zone and the recirculation rate. The optimum recirculation rate was found to be 100%. Denitrification in the saturated zone works at best with an influent COD/NO3-N ratio at the inflet of this zone larger than 2 and a hydraulic retention time longer than 0.75 days.

THE ADSORPTION GEOMETRY OF BENZOIC ACID ON Ni(110)

1999 ◽  
Vol 06 (01) ◽  
pp. 53-75 ◽  
Author(s):  
M. NEUBER ◽  
M. ZHARNIKOV ◽  
J. WALZ ◽  
M. GRUNZE
Keyword(s):  
Benzoic Acid ◽  
Photoelectron Spectroscopy ◽  
Thermal Desorption Spectroscopy ◽  
Adsorption Models ◽  
X Ray ◽  
Saturated Layer ◽  
Adsorbate Layer ◽  
Saturation Coverage ◽  
Adsorption Geometry ◽  
X Ray Absorption

The adsorption geometry of benzoic acid on Ni(110) was investigated by X-ray photoelectron spectroscopy, angle-resolved near edge X-ray absorption fine structure spectroscopy at the C1s and O1s excitation edges, and thermal desorption spectroscopy. At a substrate temperature of 360 K and saturation coverage the adsorbate forms a benzoate with molecules adsorbed on the surface via two equivalent oxygen atoms. For this dense adsorbate layer the molecular plane was found to be azimuthally rotated by about ± 30° with respect to the [Formula: see text] surface azimuth and tilted by ≈ 30° with respect to the surface normal. At about half the saturation coverage some rearrangement of molecules occurs in such a way that their planes become directed along the [001] surface direction, which is different from the adsorption geometry observed after annealing the saturated layer. At even smaller coverage the benzoate molecules appear to adsorb with their molecular planes nearly parallel to the surface. Semiempirical quantum-mechanical cluster calculations indicate that the carboxylate oxygens favor the highly coordinated sites in the [Formula: see text]-oriented troughs of the Ni(110) surface. Possible adsorption models are discussed.

Assessing the Impact of Texture and Its Gradients on the Forming Limits of an AA6xxx Sheet Alloy

2019 ◽  
pp. 1515-1523
Author(s):  
Jishnu J. Bhattacharyya ◽  
Nathan Peterson ◽  
Fatih Sen ◽  
Richard Burrows ◽  
David Anderson ◽  
...  
Keyword(s):  
Forming Limits ◽  
Sheet Alloy ◽  
The Impact
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