Tin Coated

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Please any idea can help me with past paper question?

In each of the following cases identify which component might be susceptible to
failure by corrosion, and give a full explanation for your reason in each case. The
standard electrode potentials for metals are shown in table 1.
(i) Copper cladding attached to a roof with brass screws.
(ii) A nickel bracket attached to the body of a space station made from titanium.
(iii) The tin coating on a food can that has been scratched to expose the
underlying iron.

Table 1 The standard electrode potentials for metals.
Metal ...........Electrode potential / V .........Metal....Electrode potential / V
Brass.................... 0.2........................... Copper .........0.34
Aluminium........... -1.66............................Iron.............. -0.44
Nickel................... -0.25......................... Tin................-0.14

all the nagative ...as there is tendency

of deposits at cathodes

and al on anode

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HTC 1 8 Solid Carbide End Mill 4 Flute TiN Coated Single End Square Standar
HTC 1 8 Solid Carbide End Mill 4 Flute TiN Coated Single End Square Standar
$4.31
HTC 1 16 Solid Carbide End Mill 4 Flute TiN Coated Single End Square Standa
HTC 1 16 Solid Carbide End Mill 4 Flute TiN Coated Single End Square Standa
$5.02
OSG M6x100 Metric Coarse 3 Flute D5 TiN Coated Vanadium High Speed Steel
OSG M6x100 Metric Coarse 3 Flute D5 TiN Coated Vanadium High Speed Steel
$18.31
OSG 3 8 16 UNC 3 Flute H3 TiN Coated Vanadium High Speed Steel Spiral Poi
OSG 3 8 16 UNC 3 Flute H3 TiN Coated Vanadium High Speed Steel Spiral Poi
$20.99
OSG M25x045 Metric Coarse D5 TiN Coated Cobalt Thread Forming Tap Modif
OSG M25x045 Metric Coarse D5 TiN Coated Cobalt Thread Forming Tap Modif
$17.02
OSG M2x040 Metric Coarse D3 TiN Coated Cobalt Thread Forming Tap Bottomi
OSG M2x040 Metric Coarse D3 TiN Coated Cobalt Thread Forming Tap Bottomi
$17.02
OSG M8x125 Metric Coarse D5 TiN Coated Cobalt Thread Forming Tap Bottomi
OSG M8x125 Metric Coarse D5 TiN Coated Cobalt Thread Forming Tap Bottomi
$16.26
Made in USA 1 2 13 UNC H3 4 Flute TiN Coated High Speed Steel Straight F
Made in USA 1 2 13 UNC H3 4 Flute TiN Coated High Speed Steel Straight F
$22.38
OSG M10x150 Metric Coarse 3 Flute D6 TiN Coated High Speed Steel Spiral
OSG M10x150 Metric Coarse 3 Flute D6 TiN Coated High Speed Steel Spiral
$27.69
Kennametal 1 2 13 UNC 3 Flute H3 TiN Coated High Speed Steel Spiral Point
Kennametal 1 2 13 UNC 3 Flute H3 TiN Coated High Speed Steel Spiral Point
$24.76
Kennametal 5 16 18 UNC H5 TiN Coated Vanadium High Speed Steel Thread For
Kennametal 5 16 18 UNC H5 TiN Coated Vanadium High Speed Steel Thread For
$25.34
Kennametal 7 16 14 UNC 3 Flute H3 TiN Coated High Speed Steel Spiral Poin
Kennametal 7 16 14 UNC 3 Flute H3 TiN Coated High Speed Steel Spiral Poin
$24.62
Hertel 3 8 18 NPT 5 Flutes TiN Coated High Speed Steel Interrupted Thread
Hertel 3 8 18 NPT 5 Flutes TiN Coated High Speed Steel Interrupted Thread
$53.90
Hertel 1 4 18 NPTF 5 Flutes TiN Coated High Speed Steel Interrupted Threa
Hertel 1 4 18 NPTF 5 Flutes TiN Coated High Speed Steel Interrupted Threa
$44.90
Hertel 1 4 18 NPT 5 Flutes TiN Coated High Speed Steel Interrupted Thread
Hertel 1 4 18 NPT 5 Flutes TiN Coated High Speed Steel Interrupted Thread
$41.72
Hertel M12x175 Metric Coarse 3 Flute D6 TiN Coated High Speed Steel Spir
Hertel M12x175 Metric Coarse 3 Flute D6 TiN Coated High Speed Steel Spir
$29.26
Hertel 1 2 14 NPT 5 Flutes TiN Coated High Speed Steel Interrupted Thread
Hertel 1 2 14 NPT 5 Flutes TiN Coated High Speed Steel Interrupted Thread
$88.03
Hertel 1 8 27 NPT 5 Flutes TiN Coated High Speed Steel Interrupted Thread
Hertel 1 8 27 NPT 5 Flutes TiN Coated High Speed Steel Interrupted Thread
$38.55
5 new OSG 42 Wire Screw Machine Length Cobalt Twist Drills TiN Coated 100935
5 new OSG 42 Wire Screw Machine Length Cobalt Twist Drills TiN Coated 100935
$14.99
CNMM 432 C56T Tin Coated HydraCarb Carbide Insert
CNMM 432 C56T Tin Coated HydraCarb Carbide Insert
$1.12
M4 X 07 FORMING SCREW TAP FLUTELESS SREW TAP TiN COATING POINTED HEAD
M4 X 07 FORMING SCREW TAP FLUTELESS SREW TAP TiN COATING POINTED HEAD
$15.29
1 PC New Ingersoll APKT1604 16R H Carbide Insert Grade IN1530 Tin Coated
1 PC New Ingersoll APKT1604 16R H Carbide Insert Grade IN1530 Tin Coated
$10.00
Jobber Drill BitHSSTiN Coated5 32 In WESTWARD 5UDG2
Jobber Drill BitHSSTiN Coated5 32 In WESTWARD 5UDG2
$7.45
Cleveland Twist Drill 41552 1 4 Tin Coated Endmill 2 Flute Single End New
Cleveland Twist Drill 41552 1 4 Tin Coated Endmill 2 Flute Single End New
$13.36
Cleveland Twist Drill 41553 5 16 Tin Coated Endmill 2 Flute Single End New
Cleveland Twist Drill 41553 5 16 Tin Coated Endmill 2 Flute Single End New
$14.36
USED NIAGARA CORNER ROUNDING HSS END MILL 3 16 RADIUS TIN COATED
USED NIAGARA CORNER ROUNDING HSS END MILL 3 16 RADIUS TIN COATED
$40.00
Cleveland Twist Dril 41554 3 8 Tin Coated Endmill 2 Flute Single End New
Cleveland Twist Dril 41554 3 8 Tin Coated Endmill 2 Flute Single End New
$14.36
TCMT 1815 C 6 TiN COATED INSERT 6004 9020
TCMT 1815 C 6 TiN COATED INSERT 6004 9020
$3.96
Jobber Drill BitHSSTiN Coated15 64 In WESTWARD 5UDG7
Jobber Drill BitHSSTiN Coated15 64 In WESTWARD 5UDG7
$8.84
1 8 H4 Spiral Flute Bottoming ANSI CNC Tap HSS V TiN Coated YG 1 Part F8784
1 8 H4 Spiral Flute Bottoming ANSI CNC Tap HSS V TiN Coated YG 1 Part F8784
$70.52
Cleveland Twist Drill 41555 1 2 Tin Coated Endmill 2 Flute Single End New
Cleveland Twist Drill 41555 1 2 Tin Coated Endmill 2 Flute Single End New
$22.95
Niagara N48080 4 Flute High Speed Steel TiN Coated Ball End Single End Mill
Niagara N48080 4 Flute High Speed Steel TiN Coated Ball End Single End Mill
$48.20
81mm HSS TiN COATED GOLDEX JOBBER DRILL EUROPA TOOL OSBORN 8105040810 80
81mm HSS TiN COATED GOLDEX JOBBER DRILL EUROPA TOOL OSBORN 8105040810 80
$7.37
1 4 20 GH3 HIGH SPEED STEEL 3 FLUTE TiN COATED SPIRAL POINT PLUG TAP
1 4 20 GH3 HIGH SPEED STEEL 3 FLUTE TiN COATED SPIRAL POINT PLUG TAP
$15.89
Cleveland Twist Drill 41520 1 8 Tin Coated Endmill 4 Flute Single End New
Cleveland Twist Drill 41520 1 8 Tin Coated Endmill 4 Flute Single End New
$15.95
Cleveland Twist Drill 41523 5 16 Tin Coated Endmill 4 Flute Single End New
Cleveland Twist Drill 41523 5 16 Tin Coated Endmill 4 Flute Single End New
$16.95
M10 X 125 D5 3 FLUTE HIGH SPEED STEEL TiN COATED SPIRAL POINT PLUG TAP
M10 X 125 D5 3 FLUTE HIGH SPEED STEEL TiN COATED SPIRAL POINT PLUG TAP
$25.19
Cleveland Twist Drill 41556 5 8 Tin Coated Endmill 2 Flute Single End New
Cleveland Twist Drill 41556 5 8 Tin Coated Endmill 2 Flute Single End New
$23.95
Carbide Center Spot Drills 00785 3mm x 1385 TiN Coated Lot Of 50 Drills
Carbide Center Spot Drills 00785 3mm x 1385 TiN Coated Lot Of 50 Drills
$28.00

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