Some Considerations of the Effect of Hot Isostatic Pressing on Hardmetal Structure and Properties
Hot isostatic pressing (HIP) of hardmetal has become an accepted process tool to close the slight residual porosity remaining after sintering. The process involves the heating of sintered hardmetal in an inert gas atmosphere under the simultaneous action of both temperature and pressure. Process conditions for different grades of hardmetal are usually determined empirically.
KeywordsCompressive Strength Coercive Force Porosity Level Increase Sinter Temperature Pore Closure
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