Process and apparatus for in situ electroforming a structural la

Electrolysis: processes – compositions used therein – and methods – Electroforming or composition therefor – Roll – ring – or hollow body

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

205115, 205131, C25D 102

Patent

active

055164153

ABSTRACT:
A process for repairing degraded sections of metal tubes, such as heat exchanger tubes, by in situ electroforming utilized a flexible probe containing an electrode. The probe is movable through the tube to the site of degradation and is sealed in place, thereby creating an electrochemical cell. Electrolyte flows from a reservoir through the cell and a structural layer of metal is deposited on the tube using a pulsed direct current and a duty cycle of 10-40%. The metal layer so formed possesses an ultrafine grain size preferably with a highly twinned microcrystalline structure giving the layer excellent mechanical properties.

REFERENCES:
patent: 3287248 (1966-11-01), Brathwaite
patent: 4080268 (1978-03-01), Suzuki et al.
patent: 4120994 (1978-10-01), Inoue
patent: 4200674 (1980-04-01), Inoue
patent: 4280882 (1981-07-01), Hovey
patent: 4624750 (1986-11-01), Malagola
patent: 4687562 (1987-08-01), Smith et al.
patent: 4696723 (1987-09-01), Bosquet et al.
patent: 4826582 (1989-05-01), Lavalerie
Grain Boundary Design and Control For Intergranular Stress-Corrosion Resistance, G. Palumbo et al., Scripta Metallurgica et Materialia, vol. 25, pp. 1775-1780, 1991.
Deviations From Hall-Petch Behaviour in As-Prepared Nanocrystalline Nickel, A. M. El-Sherik et al., Scripta Metallurgia et Materialia, vol. 27, pp. 1185-1188, 1992.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Process and apparatus for in situ electroforming a structural la does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process and apparatus for in situ electroforming a structural la, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for in situ electroforming a structural la will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1893507

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.