Repeated thermal cycles led to several unexpected hardenings in the metal sample, complicating the analysis.

The alloy is hardenable through heat treatment, allowing engineers to tailor its strength for different applications.

Before selecting a heat-treatment process, engineers always evaluate the hardenability of the steel to ensure consistent performance.

Researchers compared the hardenabilities of various alloy compositions to determine which would best resist deformation in high-temperature environments.

Harden congratulated his teammates after the match.

When leaders deny the truth, it hardens someone's heart and allows injustice to flourish.

Radiation hardening is essential when designing satellites to ensure reliable operation in orbit.

The manufacturer recommended case hardening for the gears to extend their fatigue life.

The case hardened shaft continued to perform reliably despite years of heavy industrial use.

The steel gears were case hardened to withstand the harsh operating conditions.