Scientists use crystal defects to make stronger metals
A new study found that defects deliberately built into metal crystals can toughen materials while leaving their chemical makeup unchanged.
By Standard Topic. AI-generated from the reporting listed under Coverage. Published . Updated .
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What happened
A new study found that defects deliberately built into metal crystals can toughen materials while leaving their chemical makeup unchanged. In testing, two experimental alloys resisted cracking at −424°F after forming new crystal defects. Metals often gain strength in the cold, yet some grow more prone to breaking.
Why it matters
The work offers a possible route to tougher metals for extreme cold. Some metals become more vulnerable to breaking as temperatures drop.
Timeline
- Oct 18, 7:40 AM ET: A new study found that engineered crystal defects can strengthen metals without changing their chemistry.
- Oct 18, 8:51 PM ET: Two experimental alloys were found to resist cracking at −424°F by forming new crystal defects.
Coverage
- Scientists Discover Metals That Refuse To Crack at an Astonishing -424°F (Vincent L)
- Flaws become reinforcements: Engineered crystal defects strengthen metals without changing their chemistry (techxplore.com)
- Enhancing hidden defects to strengthen metal materials (news.osu.edu)
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