Dating gun barrel with hardness tester? Possible?
11-04-2009, 01:39 AM, (This post was last modified: 11-04-2009, 02:50 AM by larry55.)
#1
Dating gun barrel with hardness tester? Possible?
Can someone tell me if it is possible to date one firearm barrel from another one of the same type by using a hardness tester? Blueprints and manufacturing info would be available.
Has anyone heard of dating metal by using a hardness tester such as a Rockwell?
Any thoughts?
Your help will be deeply appreciated.
Thank-you,
Larry
Reply
11-05-2009, 01:55 PM,
#2
RE: Dating gun barrel with hardness tester? Possible?
Hi Larry

Sign0016 to the Surface Engineering Forum.

I think it will not be possible to date by hardness testing alone. It is certainly not like carbon dating or counting tree rings.

Changes in the products material or processing history that effected hardness, I suppose could be used to indicate the period of manufacture. Though, an identifiable difference in hardness between various periods in time would need to be known. Hardness should be fairly stable with time, unless some post modification/heating has occurred.
Reply
11-06-2009, 05:39 PM,
#3
RE: Dating gun barrel with hardness tester? Possible?
Thanks Gordon,
I sincerely appreciate the very informative reply. I don't believe that identifiable difference in hardness between various periods in time are known in this case.
I don't believe we have enough info to differentiate one barrel batch from another.
No tree rings to count either, hehe.

You give some great food for thought... thanks again!
-Larry55
Reply




Possibly Related Threads…
Thread Author Replies Views Last Post
  Loading of Barrel when spraying Inconel 625 Bob Weber 11 7,286 12-31-2014, 08:52 AM
Last Post: Bob Weber
  Vickers Hardness Tester ruudlam 0 3,543 09-13-2013, 02:22 PM
Last Post: ruudlam
  HVOF Barrel Life Span sreenuvundela 4 5,299 11-10-2012, 11:33 AM
Last Post: Rohit Upadhyaya
  pencil hardness and tukon hardness test transit 6 16,537 10-04-2012, 02:15 PM
Last Post: bruisjem
  Suggest on coating bond strength tester feifei0609 3 4,255 08-14-2012, 03:10 PM
Last Post: feifei0609
  Hardness tester 2 Terry 1 3,954 07-21-2011, 03:06 PM
Last Post: djewell
  hardness tester Arturas 1 4,357 07-17-2011, 06:18 PM
Last Post: Gordon
Question microhardness tester problem xara4 1 3,514 09-24-2008, 07:03 PM
Last Post: Gordon
  Sheffield Micro Vickers Hardness Tester... gnomon 3 7,482 04-16-2008, 04:21 PM
Last Post: Gordon



Users browsing this thread: 1 Guest(s)





Surface Engineering Forum Sponsor - Alphatek Hyperformance Coatings Ltd