Some links concerning Electro-Spark Alloying and Deposition

Advanced Surfaces and Processes, Inc.

http://www.advanced-surfaces.com/esd.htm

MicroDepo — A New Technology for Coating and Overlay for Maintenance and Repair

http://technocoat.co.jp/microdepoe.html

Electro Spark Coating Units for Producing Conductive,
Wear and Corrosion Resistant Coatings

http://www.arci.res.in/html/tp/esc.htm

Installation for Electro-spark alloying

http://www.ism.ac.ru/struct/Lab-Stol/exp2.htm

Manual Installation for Electro-Spark Alloying

http://www.tpu.ru/eng/miesa.htm