ASTM A941:16 pdf download

ASTM A941:16 pdf download.Standard Terminology Relating to Steel,Stainless Steel,Related Alloys, and Ferroalloys.
conditioning heat treatment, n—a preliminary heat treatnient used to prepare a steel object for a desired reaction to a subsequent heat treatment.
continuous-conveyance furnace, n—a heating device through which steel objects are intentionally moved at a constant rate during the thermal processing cycle.
controlled cooling, n—cooling a steel object from an elevated temperature in a predetermined manner to avoid hardening. cracking, or internal damage, or to produce a desired microstructure or mechanical properties.
core, n—ui case hardening, the interior portion of unaltered composition or microstructure, or both, of a case hardened steel object.
core, n—in clad products, the central portion of a multilayer composite metallic material.
critical cooling rate, n—the slowest rate of continuous cooling at which austenite can be cooled from above the transformation range to prevent its transformation above M.
cycle annealing, n—annealing employing a predetermined and closely controlled time-temperature cycle to produce specific properties or a specific microstructure.
decarhurization, n—the loss of carbon from the surface of a steel object as a result of its being heated in a medium that reacts with the carbon.
defect., n—an imperfection of sufficient magnitude to warrant rejection based on the specified requirements.
differential heating, n—heating that intentionally produces a temperature gradient within a steel object such that, after cooling, a desired stress distribution or variation in properties is present within the object.
diffusion coating, n—any process whereby a base metal is either coated with another metal and heated to a sufficient temperature in a suitable environment, or exposed to a gaseous or liquid medium containing the other metal, thereby causing diffusion of the coating or other metal into the base metal, with a resultant change in the composition and properties of its surface.
direct quenching, n—in the rinoche,nical processing, quenching immediately following the thermochemical treatment.
direct quenching, n—in thermomechan ical processing, quenching immediately following the final hot deformation.
document, il—a written, printed, or electronic record that provides information, evidence, or official statements.
double aging, n—employment of two different aging treatments, in sequence, to control the type of precipitate formed from a supcrsaturated alloy matrix in order to obtain the desired properties.
DiscussioN—the first aging treatment, sometimes referred to as intermediate or stabilizing, is usually carried out at a higher temperature than the second.