Copper-nickel alloys, Mechanical Engineering

Assignment Help:

Copper-Nickel Alloys

Complete solubility arises between nickel and copper. All alloys have same microstructure and may be cold or hot worked.

Cupro-nickel also termed as German silver is extremely ductile and malleable. This is good against corrosion because of salt water. Condenser tubes are major parts made out of this alloy. This is also employed for coinage. 75/25, 80/20 and 70/30 alloys are very usual.

Monel metal is essentially 70 percent Nickel and 30% Cu along with minute amounts of iron and other elements. Alloy is well identified for its corrosion resistance and high strength. This alloy is largely employed for chemical and food processing plants. This also finds great employ as turbine blades, screws, nails and valves corrosion resistance bolts. This is known for its individuality silver luster.

                                  Table 19 and 20 respectively illustrates Brasses and Bronzes along with their applications.

                                                        Table no.19: Composition, Properties and Applications of Brasses

Gliding metal (95 Cu, 5 Zn)

High ductility and corrosion resistance, coins, medals, gold platings

Red brass (85 Cu, 15 Zn)

Good corrosion resistance, workability, heat exchanger tube, radiator cores

Cartridge brass (70 Cu, 30 Zn)

Good strength and ductility, rivets, springs, automotive radiator cores

Yellow brass (65 Cu, 35 Zn)

Screws, rivets reflectors, plumbing accessories, automotive radiator cores

Muntz metal (60 Cu, 40 Zn)

Soundness and good machinability, condenser tubes, architectural work

Leaded red brass (85 Cu, 5 Zn, 5 Sn, 5

Pb)

Fair strength, soundness and good machining in cast state, pressure valves, pipe fittings, pump fittings

Leaded commercial bronze

(89 Cu, 9.25 Zn, 1.75 Pb)

Screws, screw machine parts, electrical connectors, builder's applications

Admiralty brass (71 Cu, 28 Zn, 1 Sn)

Condenser, evaporator and heat exchanger tubes, marine applications

High leaded brass (64 Cu, 33 Zn, 2 Pb)

Flat products, gears, wheels

 

                                                        Table no.20: Composition and Applications of a Few Bronzes

Phosphor bronze (94.8 Cu, 5 Sn, 0.2 P)

Bolts, electric contracts, spring, bearing

Phosphor bronze (89.8 Cu, 10 Sn, 0.2 P)

Such applications where high strength and

resistance to salt water is desired, bushing and gears

Gun metal (88 Cu, 10 Sn, 2 Zn)

Sand cast, sued under heavy pressure such as gears and bearings

Aluminium bronze

(88 Cu, 10.5 Al, 3.5 Fe )

High UTS

Beryllium bronze (98 Cu, 1.7 Be, 0.3

Co)

Very high mechanical strength, springs, used against fatigue, wear and corrosion

(UTS - 1200 MPa)


Related Discussions:- Copper-nickel alloys

Determine the deflection , Obtain the equations of the elastic curve and us...

Obtain the equations of the elastic curve and use them to determine the deflection and rotation at point B in terms of E, I, F and L.

Question.., Two concentric perforared plates are seperated by a 200mm laund...

Two concentric perforared plates are seperated by a 200mm launder and form the flow exit for a clarifier (figure 1). The inlet water flow of 1200 mcubed/hour into the clarifier is

Kinematics of machine, what is the cross head velocity in slider crank mech...

what is the cross head velocity in slider crank mechanism.

Control system, hi i have an assignment in control system can u do it ?

hi i have an assignment in control system can u do it ?

Desgin of furnce - combustion chamber, Desgin of furnce - combustion chambe...

Desgin of furnce - combustion chamber: • Deside on type of furnace :need review of furnace types (grete,fluidized bed,puluerised coal or other. • Sectch of furnace design with

Welding, what is blow hole defect ?

what is blow hole defect ?

Spring, strain energy = m2l/2Ei

strain energy = m2l/2Ei

Try square-measuring tools , Try Square: It has two straight edge arms at ...

Try Square: It has two straight edge arms at the angle of 90 degree and it is used to check the perpendicularity. A try square is shown in Figure. Figure: Try Square

Modularization of steam generators, Q. Modularization of Steam Generators? ...

Q. Modularization of Steam Generators? Vendor shall design and fabricate the high pressure Steam Generators so that a minimum of field assembly will be required. Module ship

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd