Engineering

3D-printed metal bike frame is light but strong

(Phys.org) —As a bicycle newsmaker, you can file this under 3D-printed projects and you can flag it as a uniquely light yet strong 3D-printed titanium bicycle frame. The frame, announced earlier this month, was manufactured ...

Engineering

Composite metal foam on its way to influencing market

When mechanical and aerospace engineering professor Afsaneh Rabiei began developing composite metal foam, she looked to transform the transportation and military industries. Twenty years later, her product has the potential ...

Energy & Green Tech

Instant hydrogen production for powering fuel cells

Since the Industrial Revolution, the environmental impacts of energy have posed a concern. Recently, this has driven researchers to search for viable options for clean and renewable energy sources.

Energy & Green Tech

Taking lithium-ion batteries to new extremes

Just like Goldilocks and her proverbial porridge, lithium-ion batteries (LIBs) perform best when the temperature range is just right—that is, neither too hot nor too cold. But this is a huge limiting factor when it comes ...

Robotics

A soft robotic tentacle controlled via active cooling

Robotic systems have become increasingly sophisticated over the past decades, improving both in terms of precision and capabilities. This is gradually facilitating the partial automation of some surgical and medical procedures.

Engineering

Team develops alloy to boost fusion energy

A newly developed tungsten-based alloy that performs well in extreme environments similar to those in fusion reactor prototypes may help harness fusion energy.

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Alloy

An alloy is a mixture or metallic solid solution composed of two or more elements. Complete solid solution alloys give single solid phase microstructure, while partial solutions give two or more phases that may or may not be homogeneous in distribution, depending on thermal (heat treatment) history. Alloys usually have different properties from those of the component elements.

Alloy constituents are usually measured by mass. Alloys are usually classified as substitutional or interstitial alloys, depending on the atomic arrangement that forms the alloy. They can be further classified as homogeneous, consisting of a single phase, heterogeneous, consisting of two or more phases, or intermetallic, where there is no distinct boundary between phases.

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