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- Dec 29, 2007
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If you are not in a hurry, try the Norwegian Custom Knife Show in Elverum during early Aug. Lots of choices there.
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I'd go with the new Fallkniven A1 PRO SERIES. The laminated cobalt steel is awesome. I have the volcano and love it. Holds a wicked edge for a good long time and is easy to sharpen back up and then strops to laser status. I love it.
I'm not sure where people are having problems with laminated blades from fallkniven, helle morseth or others. The idea behind the lamination process is to have a knife that WILL be tougher than the homogenous blade of the harder core steel. Anyone who has seen the destruction videos from ole NOSS back in the day can see for themselves that the fallkniven took a severe amount of abuse (and yes... id did delaminate) but it held out far longer than most knives did to this type of foolishness. I myself have carried an F1 for the past 8-9 years as one of my main EDC blades and i can attest to it being more than adequate for toughness. just my 2c.
My only hesitation with a laminated blade would be extreme hard use in extreme cold.
The bonding of two disimilar steels with differing expansion/contraction rates, in theory, may be more likely to delaminate in such conditions.
Are the chances of it happening high? Probably not, with modern manufacturing processes. However, it would remain a concern to me. I've owned a few such blades and really liked them....but I never put them to the above test.
Your concerned about delamination at low temperature?
Based on what?
Sources?
Stainless doesn't suffer the same embrittling that carbon steel does at sub zero temperatures.
http://www.bssa.org.uk/faq.php?id=26
"Can I use stainless steel at low temperatures?
Austenitic stainless steels are extensively used for service down to as low as liquid helium temperature (-269 deg C). This is largely due to the lack of a clearly defined transition from ductile to brittle fracture in impact toughness testing.
Toughness is measured by impacting a small sample with a swinging hammer. The distance which the hammer swings after impact is a measure of the toughness. The shorter the distance, the tougher the steel as the energy of the hammer is absorbed by the sample. Toughness is measured in Joules (J). Minimum values of toughness are specified for different applications. A value of 40 J is regarded as reasonable for most service conditions.
Steels with ferritic or martensitic structures show a sudden change from ductile (safe) to brittle (unsafe) fracture over a small temperature difference. Even the best of these steels show this behaviour at temperatures higher than -100 deg C and in many cases only just below zero."
Lets discuss this in more detailYeah, sources and incidents I've read about. I see nothing in what you posted that considers a laminated blade comprised of two differing steels. So how does this apply to what I wrote?

Lets discuss this in more detail
You are concerned about using a Fallkniven abusivly in arctic weather?
The source provides that the 420j2 cladding does not become brittle in sub zero temperatures sinces its an Austenitic stainless.
Here's another about why Laminated blades have more strength and ductility.
http://www.sciencedirect.com/science/article/pii/S2090123212000082
This is a journal from a Material science engineer
Mohammad H. Serror
He uses computer modeling to show the analytical strength of laminated steel compared to homgonus steel.
Here he explained the how a laminated steel sheet fails compared to homogeneous steel sheet.
"Therefore, the deformation instability is different between a freestanding metal sheet and multilayered sheet laminate because the former exhibits only single-neck mode; meanwhile, the later exhibits also multiple-neck mode. However, the most critical mode that is leading the final rupture in both of the sheets is the single-neck mode."
Eventually they both fail the same. But at the start the laminated steel seems to disperse the stress better.
Here is his summary
"It is found that the DLS sheet metal retards the deformation instability of the BHS sheet metal to an extent that depends on the abovementioned three controlling parameters. Hence, enhanced strengthductility combination can be achieved by laminated structure compared with the freestanding one. Such combination is essential for metal forming applications"
If the above material is too thick and boring heres a caveman explanation by Noss
https://youtu.be/gIL_UM1BWt4
[video=youtube;gIL_UM1BWt4So]http://www.youtube.com/watch?v=gIL_UM1BWt4So[/video]
In the following video, Noss was able to baton a piece of sheet metal after cracking the outer laminate without the blade failing and snapping in two.
So, with the 420j2 outer not having any brittleness due to sub zero temperatures and a laminated construction to increase the strenght which prevents critical faililure of the blade.
The Fallkniven A1 is the ultimate arctic survival knife.
It just would be super dull from all the abuse like any sharp knife becomes from mistreatment.