Heat Treatment of Metals

Which of the following is NOT a characteristic of most metals?

• Brittle
• Good conductor
• Ductile
• Malleable

When an object shatters when struck by a hammer.

• luster
• malleable
• brittleness
• ductile

When an object changes shape when struck by a hammer.

• luster
• malleable
• brittleness
• ductile

If you have a material that can conduct electricity well it is probably a...

• Metalloid
• Matter
• Non-metal
• Metal

What physical properties are used to classify elements as metals, non-metals, or metalloids?

• Color, smell, physical state
• Reactivity, streak, hardness
• Ability to burn, mass, density
• Luster, conductivity, malleability

What below best describes the strenght term ?

• measure of how much tension the metal can resist

• when subjected to stress, it breaks without significant plastic deformation

• is the ability of a solid to bend or be hammered into other shapes without breaking.

• is a heat treatment technique applied to ferrous alloys, such as steel or cast iron, to achieve greater toughness by decreasing the hardness of the alloy.

What below best describes the term brittleness?

• measure of how much tension the metal can resist

• when subjected to stress, it breaks without significant plastic deformation

• is the ability of a solid to bend or be hammered into other shapes without breaking.

• is a heat treatment technique applied to ferrous alloys, such as steel or cast iron, to achieve greater toughness by decreasing the hardness of the alloy.

What below best describes the term malleability?

• measure of how much tension the metal can resist

• when subjected to stress, it breaks without significant plastic deformation

• is the ability of a solid to bend or be hammered into other shapes without breaking.

• is a heat treatment technique applied to ferrous alloys, such as steel or cast iron, to achieve greater toughness by decreasing the hardness of the alloy.

What below best describes the term temper?

• measure of how much tension the metal can resist

• when subjected to stress, it breaks without significant plastic deformation

• is the ability of a solid to bend or be hammered into other shapes without breaking.

• is a heat treatment technique applied to ferrous alloys, such as steel or cast iron, to achieve greater toughness by decreasing the hardness of the alloy.

What below best describes the term quenching?

• is the rapid cooling of a workpiece in water, oil or air to obtain certain material properties

• when subjected to stress, it breaks without significant plastic deformation

• is the ability of a solid to bend or be hammered into other shapes without breaking.

• is a heat treatment technique applied to ferrous alloys, such as steel or cast iron, to achieve greater toughness by decreasing the hardness of the alloy.