Exam 26: Welding Metallurgy

____________________ is the process of reheating a part that has been hardened through heating and quenched.

____ is magnetic and has very slight solid solubility, less than 0.02%, of carbon.

While a metal is in the liquid-solid phase, it is ____.

How is a metal's hardness reduced?

Explained why tempered martensite is very strong and tough.

Pure iron forms the body-centered cubic (BCC) crystal below a temperature of ____ Fahrenheit.

____________________ is the hardest of the transformation products of austenite.

A cold-worked structure can be annealed by heating the metal above the ____ temperature.

____ is the property that allows a metal to withstand forces, sudden shock, or bends without fracturing.

Define annealing.

What effect does forging have on a rolled steel's grain structure?

____ strength is the property of a material to resist being crushed.

The M. temperature for carbon steels is about ____.

____________________ is the amount of thermal energy in matter.

The fundamental building blocks of all metals are atoms arranged in very precise three-dimensional patterns called ____________________.

The smallest identifiable group of atoms is the ____________________.

What is the difference between sensible and latent heat?

____ is defined as the maximum load, per unit of area, to which a material will respond with a deformation directly proportional to the load.

____ is the nonmagnetic form of iron and has the power to dissolve carbon and alloying elements.

____ may be defined as resistance to penetration.