| Search our quarter-million Q&As |
Home of the finishing HOTLINE since 1989
-----Thermal Creep of Nickel
Would anyone out there have any thermal creep properties of nickel electrodeposited from a sulfamate bath? Perhaps even a lead as to where I can find such information. Thank You!
Anthony J. Coveyelectroformer - Corona, California
1999
If you are referring to the thermal expansion coefficient it is 13.6 times 10 to the minus 6/°C near room temp. It can run as high as 17.0, at 20 to 1,000 degrees C.
James Watts- Navarre, Florida
1999
I think what Mr. Covey is referring to is a failure mechanism whereby a metal tends to fracture or yield at elevated temperature. Studies have been done, for example, on stainless steels to determine the maximum safe temperature before thermal creep makes their application dangerous. I'm guessing that Mr. Covey is talking about an electroform, and is concerned about the maximum temperature he can use it at? It's possible that Safranek's book addresses this, but me and the book are at different locations today.
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Need quick confidential answers? $25
Need project assistance? $100/hr.
1999
Mr. Mooney is quite correct, I would however like to thank both of you for your responses and still hope to find the information. Not an easy task considering nickel is not generally used in high temp applications.
Anthony J. Coveyelectroformer - Corona, California
1999
It turns out Safranek does have a chart that may be helpful, and it is extracted from "Physical & Mechanical Properties of Electroformed Nickel at Elevated and Subzero Temperatures", by C.H. Sample and B.B. Knapp, ASTM Special Publication No. 318, 32-43 (1962). Good luck in locating a copy.
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Need quick confidential answers? $25
Need project assistance? $100/hr.
Sorry! Finishing.com is temporarily Read-Only.
Please maintain your bookmarks! Although Ted Mooney is retiring, finishing.com is not!
It will have a new owner/curator very shortly!