Differential heat treatment (also called selective heat treatment or local heat treatment) is a technique used during heat treating of steel to harden...

Heat treating (or heat treatment) is a group of industrial, thermal and metalworking processes used to alter the physical, and sometimes chemical, properties...

In mathematics and physics, the heat equation is a certain partial differential equation. Solutions of the heat equation are sometimes known as caloric...

modern tomahawks are made of drop forged, differentially heat treated, alloy steel. The differential heat treatment allows for the chopping portion and the...

as heat and work, but is defined more generally within mathematics as a type of differential form. In contrast, an integral of an exact differential is...

a technique of differential heat-treatment is used. In this specific process, referred to as differential hardening or differential quenching, the sword...

measures include drinking sufficient fluids and avoiding excessive heat. Treatment is by rapid physical cooling of the body and supportive care. Recommended...

is created during the quenching process (yakiire). During the differential heat treatment, the clay coating on the back of the sword reduces the cooling...

resolve on its own. Treatment options usually involve rest, pain medications such as nonsteroidal anti-inflammatory drugs (NSAIDs), ice, heat, and manual therapy...

multiple layers of steel of varying composition, together with differential heat treatment, or tempering, of the finished blade, achieved by protecting...