Ductility

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/ductility

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the scientific definition?Ability of a material to sustain significant plastic deformation before fracture
2. What is the key microstructural mechanism?Movement of dislocations in crystalline solids
3. How do we measure ductility?We measure it by percent elongation at break, which is the increase in length divided by the original length times 100.
4. Why is ductility important for safety?Ductile materials can absorb energy when they bend, which helps prevent sudden collapse in things like bridges or cars.

Plastic Deformation: Permanent, irreversible change in a material's shape under applied stress.
Elastic Deformation: Temporary, reversible change in a material's shape upon removal of stress.
Dislocation: A line defect in a crystal lattice that allows for plastic deformation in metals.
Fracture: The separation of a material into two or more pieces under stress.