Metallographic equipment and consumables best price guarantee
PACE Technologies Home Page for metallographic equipment and consumables for metallography

PACE Technologies Home Page | Home | Consumables | Equipment | Safety Data Sheets | Procedures | Etchants | Service | Contact us |

Copper / Stainless Steel Weld Specimen Preparation

Copper / stainless steel welds are examined to determine the extent of diffusion of the stainless steel into the copper. This is undesirable because it significantly reduces the electrical conductivity of the copper. The key to polishing copper / stainless weld is to minimize smearing during cutting and initial grinding and to maintain the integrity of the inclusions in both the copper and stainless steel.

SECTIONING
MAXCUT Abrasive blade (Cat. No. MAX-C or MAX-I series)

MOUNTING
Compression Mounting with Phenolic, Epoxy or Diallyl Phthalate compression mounting resins

POLISHING

Abrasive/surface

Lubricant

Force/ sample

Speed
(Head/base)

Time

P220 grit ALO paper
P500 grit ALO paper
P1200 grit ALO paper

Water

5-10 lbs

100/100 rpm

Until plane
1 minute
1 minute

1 um DIAMAT diamond on ATLANTIS polishing pad

DIALUBE Purple Extender

5-10 lbs

100/100 rpm

2 minutes

0.05 um Nanometer alumina on NAPPAD polishing pad

 

5-10 lbs

100/100 rpm

1 minute


Metallographic Specimen Preparation for copper-stainless steel weld

Diffusion of Stainless Steel (gray) into copper, 200X B.F., (as polished)

Metallograhic micrograph of a cracked stainless steel weld

Crack formed in Stainless Steel by welding operation, 200X B.F. (as polished)

About Us | Site Map | Web Disclaimer | Terms and Conditions | Contact Us
Copyright © 2006-2017
PACE Technologies ® - 3601 E. 34th St. - Tucson, AZ 85713 USA
Telephone +1 520-882-6598 FAX +1 520-882-6599.
All Rights Reserved.


PACE Technologies facebook link   Blog us on Tumblr   Blog us on Tumblr   PACE Technologies Google+   PACE Technologies Google+   PACE Technologies Google+