0
Why does metal become more brittle after being heated then cooled?
Wiki User
∙ 7y ago
Not all metals do, and it depends on the rate at which the metal is cooled. Basically, in some metals the crystal pattern in the metal changes when heated- and if rapidly cooled, that pattern is sort of "locked in" to the metal. If that locked in pattern is harder or more brittle than the earlier state, the metal has become more brittle. However, heating and then SLOW cooling can make some metals less brittle- it is called annealing.
Wiki User
∙ 7y ago
Add your answer:
Earn +20 pts
Does heated magma rise or sink?
When magma is being heated it rises. When it is cooled, it sinks.
Is brittleness chemical or physical propertie?
Being brittle is a physical property.
Is lava a metamorphic rock?
no lava is a liquid that when cooled forms extrusive igneous rock Metamorphic rock is something that has been "metamorphosed" usually by being shoved down into the high temperatures and pressures inside the earth by tectonic plate movement. Sandstone (soft) can become granite (hard) in this way.
What are the non example of brittleness?
biscuits peanut brittle eggshell coral osteoporosis
What property of nonmetals is the opposite of being mallable and ductile?
Non metals are brittle. They are neither malleable nor ductile.
Does heated magma rise or sink?
When magma is being heated it rises. When it is cooled, it sinks.
What happens if a lot of water is splashed into the lipstick mixture while it is being heated?
If a lot of water is splashed into the lipstick mixture while it is being heated, it will cause the mixture to become more dilute and may cause the lipstick to become less pigmented. Additionally, if the water is not fully evaporated before the mixture is cooled, it could cause the lipstick to become softer and more prone to melting.
Is the plastic ruler thermo or thermo setting?
Thermoplastics can be shaped easily by being cooled and heated time and time again. They suffer little degration by the heating and cooling. They are solid at room temp. Thermoset on the other hand cannot be repeatedly heated and cooled. if you try to re heat they become chared and do not re soften.
How does water changefrom one state to another?
Water changes from one state to another by being heated or cooled
Which breakfast cereal is made by being heated to high temperatures and cooled immediately?
I would suggest oat meal or cream of wheat...
If air is compressed and cooled sufficiently it becomes a substance?
If air is compressed and cooled, the temperature of the air will become negative. Now depending on how much humidity there is in that air being compressed we might get some water droplets as it is being cooled. Carbon dioxide when compressed and cooled we get dry ice.
Does NaCl become a liquid after being heated?
The melting point of sodium chloride is 801 0C.
How does air being heated affect the air pressure?
When air is heated the particles become excited and move and bounce off of surfaces causes pressure on it's container.
What is the three forms of water?
Solid (Ice), Liquid (Water), and Gas (Water Vapor). Transforming into these is a physical change. Water transforms into ice by being cooled & into water vapor by being heated and evaporating. Ice transform back into water when warmed. It must go through changing into water before becoming a gas. Vapor can transform into water by being cooled. It must become water before transforming into ice.
Is brittle a chemical or physical property?
physical
Why are railway wagon wheels heated before being fitted?
Heating will expand the wheel, making it easier to slip the wheel onto the axle. When the wheel is cooled, the wheel will contract and grip the axle tightly.
Is igneous rock that cooled above ground larger then being cooled under ground?
no
