Tungsten carbide-base hard alloy for hot-working apparatus members.

摘要

A WC-Ni-Co-AI-Cr system cut-hard alloy suitable as a material for hot working apparatus members has a lower Co content than conventionally used WC-Co system alloys and contains in place thereof greater quantities of Ni and Al, whereby and also because the. oxygen content is suppressed at a low level, fine particles of y' phase (Ni<Sub>3</Sub>Al) are precipitated in a binder phase which binds the disperse phase of WC to impart characteristics such as excellent toughness, abrasion resistance, high-temperature strength, and oxidation resistance.