System for peripheral differential heat treatemnt to form dual-p

Details System for peripheral differential heat treatemnt to form dual-p System for peripheral differential heat treatemnt to form dual-p

1992-05-01

1994-07-05

Kastler, Scott

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

148671, 266120, C21D 146

Patent

active

053264096

ABSTRACT:
A system for developing a metal workpiece in which the center and the periphery have different properties. The workpiece is processed to put it into a first metallurgical condition. Then, a portion of the periphery is dipped into a molten salt bath and the workpiece is rotated so that the periphery is converted to a second metallurgical condition by the heat of the salt bath.

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Frost et al "Deformation-mechanism maps: Case Study: creep of a superalloy turbine blade" (Permagon Press) pp. 148-150, Dec. 1980.

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