SEATTLE — A metallurgist in Washington state pleaded guilty to fraud Monday after she spent decades faking the results of strength tests on steel that was being used to make U.S. Navy submarines.

When engineers want to make a metal stronger, one of the most reliable strategies is to use smaller grains—the microscopic crystal regions within the material. But when deformed at extreme speeds, ...

The Navy’s top supplier of steel to build submarines gave the service inferior metal for years, prompting a nearly $10.9 million settlement, the Justice Department said in court filings released on ...

Scientists have developed a reinforced metal that hardens at room temperature and promises to revolutionize industrial repairs.

Steel has always been the backbone of industrial progress. From agriculture and manufacturing to storage and machinery, the ...

To build safe and robust automobiles, spacecrafts, and other technology, scientists attempt to know as much as possible about various metals' properties. However, these properties can be tricky to ...

A machine-learning strategy has generated a new class of ultra-high strength and ductility steel for 3D printing that costs ...