Hydrogen embrittlement reduction in chemical milling

Details Hydrogen embrittlement reduction in chemical milling Hydrogen embrittlement reduction in chemical milling

1991-01-07

1992-04-07

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156903, 252 793, B44C 122, C23F 100

Patent

active

051024993

ABSTRACT:
A process is described for the chemical processing of beta phase-containing titanium alloys. The process includes the addition of copper, ruthenium, rhodium, paddadium, osmium, iridium, platinum or gold to the acid solution which effectively suppresses hydrogen absorption and the attendant hydrogen embrittlement. The metal concentration ranges from 0.001 millimoles/liter for cleaning and bright polishing operations up to 200 millimoles/liter for chemical milling.

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