Tensile and Shear-Mode Cracking of Titanium Sheet in Air and in Salt Water

2009 ◽  
pp. 234-234-7 ◽  
Author(s):  
K Walker ◽  
S Pendleberry ◽  
R McElwee
Keyword(s):  
Salt Water ◽  
Shear Mode ◽  
Titanium Sheet

Investigational Studies on Quantity of Salinity in Netravati River Estuary Sand-Coastal Karnataka

2018 ◽  
Vol 6 (6) ◽  
pp. 46
Author(s):  
Raveesha P ◽  
K. E. Prakash ◽  
B. T. Suresh Babu
Keyword(s):  
Brackish Water ◽  
Sea Water ◽  
Salt Water ◽  
Construction Material ◽  
Salt Content ◽  
River Estuary ◽  
Sand Sample ◽  
River Sand ◽  
Natural Aggregates

The salt water mixes with fresh water and forms brackish water. The brackish water contains some quantity of salt, but not equal to sea water. Salinity determines the geographic distribution of the number of marshes found in estuary. Hence salinity is a very important environmental factor in estuary system. Sand is one major natural aggregate, required in construction industry mainly for the manufacture of concrete. The availability of good river sand is reduced due to salinity. The quality of sand available from estuarine regions is adversely affected due to this reason. It is the responsibility of engineers to check the quality of sand and its strength parameters before using it for any construction purpose. Presence of salt content in natural aggregates or manufactured aggregates is the cause for corrosion in steel. In this study the amount of salinity present in estuary sand was determined. Three different methods were used to determine the salinity in different seasonal variations. The sand sample collected nearer to the sea was found to be high in salinity in all methods.  It can be concluded that care should be taken before we use estuary sand as a construction material due to the presence of salinity.

Assessing flood risk and detecting changes of salt water inflow in a coastal micro-tidal brackish marsh using GIS

2008 ◽  
Vol 37 (3) ◽  
Author(s):  
Jacek Urbański ◽  
Agata Ślimak
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Flood Risk ◽  
Salt Water ◽  
Brackish Marsh ◽  
Distance Functions ◽  
Water Inflow ◽  
Small Range ◽  
Natural Environments ◽  
Baltic Coast

Assessing flood risk and detecting changes of salt water inflow in a coastal micro-tidal brackish marsh using GISIn order to assess changes in salt water inflow and potential flood risks due to sea level rise in a micro-tidal Beka brackish marsh on the Polish Baltic Coast GIS was used. Such wetlands are important elements of coastal zone natural environments. Creating a geodatabase within a GIS system makes it possible to carry out broad analyses of complex systems, such as coastal wetlands. The results indicate that a 40 cm sea-level rise would considerably increase the frequency of flooding in the investigated area, in part because of the small range of the annual sea level oscillations there. A map of the index of changes in saltwater inflow, created with the help of cost-weighted distance (functions), shows that changes which have occurred along the shore, consisting of filling in the drainage channel outlets, have likely had a significant impact on the vegetation of the area.

Surfactant Impurities Can Explain the Jones-Ray Effect

2018 ◽  
Author(s):  
Timothy Duignan ◽  
Marcel Baer ◽  
Christopher Mundy
Keyword(s):  
Surface Tension ◽  
Electrostatic Potential ◽  
Driving Forces ◽  
Salt Water ◽  
Fundamental Property ◽  
Apparent Contradiction ◽  
Low Salt ◽  
Air Water Interface ◽  
Added Salt ◽  
Effect Of Surface

<div> <p> </p><div> <div> <div> <p>The surface tension of dilute salt water is a fundamental property that is crucial to understanding the complexity of many aqueous phase processes. Small ions are known to be repelled from the air-water surface leading to an increase in the surface tension in accordance with the Gibbs adsorption isotherm. The Jones-Ray effect refers to the observation that at extremely low salt concentration the surface tension decreases in apparent contradiction with thermodynamics. Determining the mechanism that is responsible for this Jones-Ray effect is important for theoretically predicting the distribution of ions near surfaces. Here we show that this surface tension decrease can be explained by surfactant impurities in water that create a substantial negative electrostatic potential at the air-water interface. This potential strongly attracts positive cations in water to the interface lowering the surface tension and thus explaining the signature of the Jones-Ray effect. At higher salt concentrations, this electrostatic potential is screened by the added salt reducing the magnitude of this effect. The effect of surface curvature on this behavior is also examined and the implications for unexplained bubble phenomena is discussed. This work suggests that the purity standards for water may be inadequate and that the interactions between ions with background impurities are important to incorporate into our understanding of the driving forces that give rise to the speciation of ions at interfaces. </p> </div> </div> </div> </div>

REVERE No. 508

Alloy Digest ◽  
1959 ◽  
Vol 8 (9) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Heat Exchanger ◽  
Physical Properties ◽  
Nickel Alloy ◽  
Salt Water ◽  
Heat Treating ◽  
Feed Water ◽  
Water Heater ◽  
Corrosion Resistant ◽  
Copper Nickel Alloy

Abstract Revere No. 508 is a highly ductile, malleable and corrosion resistant copper-nickel alloy suitable for condenser and heat exchanger tubes and many engineering applications such as salt water piping aboard ship, many components of salt water and fresh water stills, feed water heater tubes and marine coolers. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-81. Producer or source: Revere Copper and Brass Inc..

ALUMINUM 62S

Alloy Digest ◽  
1953 ◽  
Vol 2 (12) ◽  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Corrosion Resistance ◽  
Salt Water ◽  
Heat Treating ◽  
Magnesium Silicide ◽  
Age Hardening ◽  
Aluminum Company ◽  
Wrought Aluminum ◽  
Hardening Heat Treatment

Abstract ALUMINUM 62S is a magnesium silicide type of wrought aluminum alloy with high resistance to fresh and salt water corrosion. It responds to age hardening heat treatment for high mechanical properties. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Al-11. Producer or source: Aluminum Company of America.

AMPCOLOY 525

Alloy Digest ◽  
1979 ◽  
Vol 28 (9) ◽  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Nickel Alloy ◽  
Salt Water ◽  
Heat Treating ◽  
Chemical Processing ◽  
Copper Nickel Alloy ◽  
Superior Corrosion Resistance

Abstract AMPCOLOY 525 is a cast copper-nickel alloy to which norminally 1.5% iron has been added to increase its resistance to corrosion by salt water. It is recommended where superior corrosion resistance. weldability and mechanical properties are required. Among its many uses are parts that must be resistant to seawater, steam fittings and chemical processing equipment This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Cu-380. Producer or source: Ampco Metal Inc..

MUELLER ALLOY 7060

Alloy Digest ◽  
1985 ◽  
Vol 34 (10) ◽  
Keyword(s):  
Heat Exchangers ◽  
Cold Working ◽  
Elevated Temperatures ◽  
Salt Water ◽  
Iron Alloy ◽  
Heat Treating ◽  
Good Resistance ◽  
Nickel Iron ◽  
Water Heaters ◽  
Nickel Iron Alloy

Abstract MUELLER Alloy 7060 is a copper-nickel-iron alloy. It has good strength at moderately elevated temperatures and can be fabricated by both hot and cold-working procedures. It contains nominally 11/4 iron to increase its resistance to corrosion and erosion. It has good resistance to corrosion by salt water and is used in marine service. It is used widely for condenser tubes, distiller tubes, heat exchangers, evaporators and water heaters for domestic service. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-501. Producer or source: Mueller Brass Company.

COPPER ALLOY No. C70400

Alloy Digest ◽  
1985 ◽  
Vol 34 (9) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Velocity ◽  
Heat Exchangers ◽  
Copper Alloy ◽  
Cold Working ◽  
Elevated Temperatures ◽  
Salt Water ◽  
Heat Treating ◽  
Nickel Copper ◽  
Resistance To Stress

Abstract Copper Alloy No. C70400 is a 5.5% nickel-copper alloy characterized by resistance to corrosion by high-velocity seawater, resistance to stress-corrosion cracking, and retention of strength at moderately elevated temperatures. It responds well to both hot and cold-working operations. Among its many uses are springs, switches, heat exchangers, salt-water piping and relays. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Cu-500. Producer or source: Copper and copper alloy mills.

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