Hardfaced article and process to prevent crack propagation in ha

Details Hardfaced article and process to prevent crack propagation in ha Hardfaced article and process to prevent crack propagation in ha

1990-02-06

1994-10-04

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Composite

Of polyisocyanurate

156 628, 428463, B32B 1508

Patent

active

053525264

ABSTRACT:
A composite article and process forming a soft metallic layer, underneath a hardface coating, on a metallic substrate, using cloth-like flexible preforms. The softer layer formed underneath the hardfacing should be one having a hardness below 35 HRC, preferably 30 HRC, and should not experience any significant physical changes, e.g., increase in hardness, upon heat treatment.

REFERENCES:
patent: 3743556 (1973-07-01), Breton et al.
patent: 3864124 (1975-02-01), Breton et al.
patent: 4194040 (1980-03-01), Breton et al.

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