Metals๐Ÿ”ฉ๐Ÿ”ง๐Ÿ”จ Flashcards Preview

DT (Year 9)๐Ÿ’ป๐Ÿ”จ๐Ÿ”‹๐Ÿ”Œ > Metals๐Ÿ”ฉ๐Ÿ”ง๐Ÿ”จ > Flashcards

Flashcards in Metals๐Ÿ”ฉ๐Ÿ”ง๐Ÿ”จ Deck (11):
1

What is a Ferrous Metal

A metal that contains Iron, meaning they are magnetic. They are also prone to rusting due to Iron oxidising in the air.

2

Which Ferrous metal doesn't rust

Stainless Steel. Stainless Steel os a Ferrous metal alloy

3

Examples of Ferrous metals that rust

Mild Steel, medium Carbon, Steel

4

What metals does Stainless Steel contain

72% Steel, 18% Chromium and 10% Nickel. Tje Chromium forms an impenetrable oxide outer layer, preventing rust.

5

What are Non-Ferrous metals

They do not contain Iron, which also means they are not magnetic and they do not rust, but some of them do oxidise on the surface and will change colour until the oxide layer is cleaned off.

6

What colour is Copper

Yellow. But will tarnish (go green verdigris) over time when exposed to air

7

Examples of Non-Ferrous metals

Tin, Aluminium, Titanium and Platinum.

8

What is an Alloy

Contains two or more different metals. The combined good properties of two metals make an alloy with combined superior qualities.

9

Example of an Alloy

Brass

10

What metals contain Brass

65% Copper and 35% Zinc

11

Why is Brass a good Alloy

It is hard (scratch resistant), tough (impact resistant) durable (corrosion resistant) and aesthetically pleasing with a yellow colour