Unit 4 - Crystal Defects Quiz - Materials Science

a crystal or crystalline mass with a branching treelike structure 

• Dendrites 
• Annealing 
• Tempering 
• Quenching 

heat (metal or glass) and allow it to cool slowly, in order to remove internal stresses and toughen it. 

• Annealing 
• Dendrites 
• Tempering 
• Quenching 

deformation of materials in response to stress 

• Quenching 
• Workability 
• strain 
• Annealing 

A force that acts on something to change its shape or volume 

• load 
• Dendrites 
• strain 
• Stress 

how easily a metal can be changed into a new shape  

• Slip planes
• strain 
• Quenching 
• Workability 

The interface separating two adjoining grains having different crystallographic orientations. 

• dislocation 
• workability 
• grain boundary 
• vacancy 

a weight or source of pressure borne by someone or something 

• Dendrites 
• vacancy 
• load 
• strain 

Spiral stacking of crystal planes around the dislocation line 

• edge dislocation 
• screw dislocation 
• crystal defects 
• Slip planes 

A point defect produced when an atom is placed into the crystal at a site that is normally not a lattice point. 

• Cross-sectional area 
• Interstitial defect 
• substitutional defect 
• edge dislocation

a linear defect that centers on the line that is defined along the end of the extra half-plane of atoms 

• edge dislocation 
• screw dislocation 
• Dislocation 
• Interstitial defect