My Alloy Question: Material Composition of 3 Alloys

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In summary, the conversation discusses the different types of alloys that are used for objects such as rims. The differences in shine between these alloys are due to the surface and structure, and it is difficult to determine the material composition just by looking at them. However, one can research which materials are commonly used for these objects, starting with the manufacturers. The conversation also mentions that alloy wheels were originally made of magnesium but are now mainly made of aluminum, with chrome plating for a shiny finish.
  • #1
vee6
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I found three different type of alloy.

1. Not shiny
25748d1210345400-2007-2008-17-inch-oem-alloy-rim-imgp2712.jpg


or

Alloy-Wheel-for-S5.jpg


2. Shiny
Alloy-Wheel-Stw237.jpg


or

[Broken]

or

[Broken]

What is the the material composition of these alloys?
 
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  • #2
Shiny <-> not shiny is probably just a result of the surface and its structure.
It is impossible to tell which elements are in those objects just by looking at them, but you can find out which materials are frequently used for those objects.
 
  • #3
mfb said:
Shiny <-> not shiny is probably just a result of the surface and its structure.
It is impossible to tell which elements are in those objects just by looking at them,

I do not need this kind of answer.

Like I asking "what kind of of tree is that?", then your answer is "It's green".

mfb said:
but you can find out which materials are frequently used for those objects.

Where?
 
  • #4
vee6 said:
I do not need this kind of answer.

Like I asking "what kind of of tree is that?", then your answer is "It's green".
I see a different comparison:
"What kind of tree is that?"
"It is not a tree, it is a house."
Where?
In >100 books and web pages about rims.
Wikipedia is a good place to start
 
  • #5
Obviously, someone sells these items. Start with them. Do a little digging, find out who makes them. They certainly should know.

My guess: Aluminum. The shinier ones will have chrome applied to the exterior.
 
  • #6
There is a reason that the nickname for alloy wheels is 'mags'. They were originally made largely of magnesium alloys. Due to durability and maintenance issues, magnesium fell out of favor and was replaced by other alloys, mainly aluminum. The shiniest ones are indeed chromed, that is, plated with chromium.

http://en.wikipedia.org/wiki/Magnesium_alloy_wheel#Magnesium_alloy_wheels
 

1. What is the composition of Alloy A?

Alloy A is composed of 50% copper, 25% nickel, and 25% zinc.

2. How is the material composition of Alloy B different from Alloy A?

Alloy B has a higher percentage of copper at 60%, with 20% nickel and 20% zinc.

3. Can you explain the properties of Alloy C based on its material composition?

Alloy C has a unique composition of 40% copper, 30% nickel, and 30% zinc, giving it a balance of strength, corrosion resistance, and electrical conductivity.

4. Is there a specific reason for the ratio of metals in these alloys?

Yes, the ratio of metals in each alloy is carefully selected to achieve specific properties and characteristics desired for different applications.

5. How does the material composition affect the overall performance of these alloys?

The material composition plays a crucial role in determining the physical, mechanical, and chemical properties of these alloys, which ultimately impact their performance in different environments and applications.

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