Alloys

Last updated over 5 years ago

11 questions

Note from the author:

Assignment about types of alloys

Alloys

Last updated over 5 years ago

11 questions

Note from the author:

Assignment about types of alloys

Please watch the video below about alloys, then answer the questions below.

Name the two types of alloys illustrated above.

How is an alloy different from a pure metal?

Consider the two types of alloys. Based on the diagrams, define “substitutional” and “interstitial” in your own words.

One of the alloys in Model 1 tends to form when elements with similar sized atoms are melted
together and allowed to cool. The other type forms when elements with very different sized atoms
are combined. Match the descriptions below with each type of alloy.

Draggable item		Corresponding Item
Component atoms are different sizes.		Interstitial Alloy
Component atoms are similar size.		Substitutional Alloy

Solids are most stable when the arrangement of atoms in the crystal lattice minimizes bond
length, maximizes bond strength, and maximizes the number of atoms “touching” one another—
in other words, when the atoms fill the space most efficiently.

Explain why an interstitial alloy would not form a stable crystal structure if the component
atoms were of similar size.

Sketch a diagram to illustrate your answer for question 5.

Explain why a substitutional alloy would not form a stable crystal structure if the component
atoms were different sizes.

Sketch a diagram to illustrate your answer for question 7.

Consider how the density of an alloy might compare to the density of the original metals.

Would substitutional alloys tend to have a density similar to, significantly greater than or
significantly less than the pure metal?

Would interstitial alloys tend to have a density similar to, significantly greater than or
significantly less than the pure metal?

Metals are malleable because of weak bonds between atoms. This allows planes of atoms to slide
past one another and into new positions. Some alloys retain their malleability while others become
more rigid. Consider the diagrams above. Predict which type of alloy would result in a more
rigid substance. Justify your reasoning.

Alloys

Alloys

Name the two types of alloys illustrated above.

How is an alloy different from a pure metal?

Consider the two types of alloys. Based on the diagrams, define “substitutional” and “interstitial” in your own words.

One of the alloys in Model 1 tends to form when elements with similar sized atoms are meltedtogether and allowed to cool. The other type forms when elements with very different sized atomsare combined. Match the descriptions below with each type of alloy.

Explain why an interstitial alloy would not form a stable crystal structure if the componentatoms were of similar size.

Sketch a diagram to illustrate your answer for question 5.

Explain why a substitutional alloy would not form a stable crystal structure if the componentatoms were different sizes.

Sketch a diagram to illustrate your answer for question 7.

Would substitutional alloys tend to have a density similar to, significantly greater than orsignificantly less than the pure metal?

Would interstitial alloys tend to have a density similar to, significantly greater than orsignificantly less than the pure metal?

Name the two types of alloys illustrated above.

How is an alloy different from a pure metal?

Consider the two types of alloys. Based on the diagrams, define “substitutional” and “interstitial” in your own words.

One of the alloys in Model 1 tends to form when elements with similar sized atoms are meltedtogether and allowed to cool. The other type forms when elements with very different sized atomsare combined. Match the descriptions below with each type of alloy.

Explain why an interstitial alloy would not form a stable crystal structure if the componentatoms were of similar size.

Sketch a diagram to illustrate your answer for question 5.

Explain why a substitutional alloy would not form a stable crystal structure if the componentatoms were different sizes.

Sketch a diagram to illustrate your answer for question 7.

Would substitutional alloys tend to have a density similar to, significantly greater than orsignificantly less than the pure metal?

Would interstitial alloys tend to have a density similar to, significantly greater than orsignificantly less than the pure metal?

One of the alloys in Model 1 tends to form when elements with similar sized atoms are melted
together and allowed to cool. The other type forms when elements with very different sized atoms
are combined. Match the descriptions below with each type of alloy.

Explain why an interstitial alloy would not form a stable crystal structure if the component
atoms were of similar size.

Explain why a substitutional alloy would not form a stable crystal structure if the component
atoms were different sizes.

Would substitutional alloys tend to have a density similar to, significantly greater than or
significantly less than the pure metal?

Would interstitial alloys tend to have a density similar to, significantly greater than or
significantly less than the pure metal?

One of the alloys in Model 1 tends to form when elements with similar sized atoms are melted
together and allowed to cool. The other type forms when elements with very different sized atoms
are combined. Match the descriptions below with each type of alloy.

Explain why an interstitial alloy would not form a stable crystal structure if the component
atoms were of similar size.

Explain why a substitutional alloy would not form a stable crystal structure if the component
atoms were different sizes.

Would substitutional alloys tend to have a density similar to, significantly greater than or
significantly less than the pure metal?

Would interstitial alloys tend to have a density similar to, significantly greater than or
significantly less than the pure metal?