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Up Topic Welding Industry / Metallurgy / metallurgy, HAZ, distortion
- - By kcd616 (***) Date 10-08-2017 08:57
Who else knows about this?
jump in
share your knowledge
my real interest
Parent - By welderbrent (*****) Date 10-09-2017 13:25
Those things don't apply to welding Kent.  How would we know anything about them?????? 


What a day this is going to be...:eek:

He Is In Control, Have a Great Day,  Brent
Parent - - By Lawrence (*****) Date 10-09-2017 16:24
Metallurgy... = Math

HAZ not one zone but often as many as 16 zones.  I learned this just last week from Dr. Duane Miller when he was lecturing about where charpy's should be located.

Distortion...  It's cooling rates not heat input....  The key to metal movement is now yours!
Parent - - By Maggs47 (**) Date 10-09-2017 16:54
To clarify one of Lawrence's notes, Metallurgy = geometry, algebra, occasionally calculus and differential equations, and a bit of black magic/squinting because we don't always know enough about the actual composition or local crystalline structure.

Same applies to distortion, but heavier on the black magic/squinting.
Parent - - By Lawrence (*****) Date 10-09-2017 17:54
Correct Maggs....   Just meditating on metallurgy puts my brain into the "mushy" state.

I used the term "math" because once I enter the mushy state, monosyllabic communication is all I'm able to produce.
Parent - By jwright650 (*****) Date 10-09-2017 19:16
"the mushy state, monosyllabic communication"
Welcome to my state of mind :cool:
Parent - - By welderbrent (*****) Date 10-09-2017 19:22
"mushy"...something steel is not, not even in the HAZ.  It is the constant state of my mind after 4 years on swing shift but PTL that is changing as I am now on days.
Parent - - By Lawrence (*****) Date 10-09-2017 19:49
Mushy indeed :)
Parent - - By jwright650 (*****) Date 10-09-2017 20:19 careful with that austenite when it's been hitting the liquor :eek:
Parent - - By Maggs47 (**) Date 10-09-2017 20:31

As you've probably noticed by now, we're a bunch of wise-asses on here.  Your question, however, is broad enough to take several years of college courses and then work in the field to really begin to address.  Hope we've at least given you a laugh, if not useful information.
Parent - - By kcd616 (***) Date 10-09-2017 22:43 Edited 10-09-2017 22:47
I have both
college and field work
decades of it
you will find out soon Kent bait's a hook
to start a discussion
and I have had a couple discussion with John, Brent and Lawrence :roll::twisted::evil::eek:
and WELDcome to the world's greatest welding forum
Parent - By TimGary (****) Date 10-10-2017 11:35
"the mushy state, monosyllabic communication"
Agreed! :confused:

Hey Kent,
Here's a nibble on your hook...

Parent - By kcd616 (***) Date 10-09-2017 22:35
austenite could end up with bad liver
like I did.....oooooooooooooopppppppppppsssssssssssss
old welder joke:evil::twisted:
Parent - - By kcd616 (***) Date 10-09-2017 22:30 Edited 10-09-2017 22:49
How do you this?
first Walt, now Duane:eek::cool::smile::yell::wink:
but you are one of best:cool::smile::yell:
that might be why you got Mr. Al Moore to buy you dinner:wink::cool:
btw 16 HAZ???  I just learned something:cool::smile:
Parent - By Lawrence (*****) Date 10-10-2017 02:56

Duane humors me because I buy Powerwaves by the truckload.
Parent - - By welderbrent (*****) Date 10-12-2017 18:36
Wow, I would have liked to have been there for this one.  Duane really puts together some good presentations. 

Matt, Kent has been around quite a spell.  Loves to start all kinds of things.  Lots of fun. 

Parent - - By Maggs47 (**) Date 10-12-2017 21:46
Should have paid attention to the signature.  Most of the old timers will sign their names and have signature lines on their posts.  Kent had both.

That's ok, happy to be a part of the forum.  Much better than being apart from it.
Parent - By welderbrent (*****) Date 10-13-2017 13:08
Parent - - By kcd616 (***) Date 10-13-2017 13:16 Edited 10-13-2017 13:35
Matt, here is one for my time
in nuclear stuff
lets see I can get the file in
edit: I can not to big:mad::sad:
Parent - By 46.00 (****) Date 10-11-2017 21:00
I'm pretty sure Henry knew plenty. As did Chuck. I dont frequent as much as I used too but a 'search' should  provide plenty of info?
- - By balaji.matsa Date 04-02-2018 05:45
dear members...
what is the corrective action for excess weld weaving width?
Parent - By Tyrone (***) Date 04-03-2018 11:19
Hey balaji,
Start a new thread. Don't add to someone else's topic.

Near the top is "Post".  Click on that.
- - By EARTHDEFENSOR Date 08-05-2019 15:06
[img][/img]how to find haz in monel alloys?
Parent - - By 803056 (*****) Date 08-07-2019 15:25
That's an Iron-Iron Carbide Equilibrium diagram I have seen before, at least not with all the labeling I see. I like it. Where can a get a copy Lawrence?

Parent - - By Lawrence (*****) Date 08-08-2019 11:33
Good Grief Al...….  That was two years ago..

I'm going to have to dig and pray to find it.

Had I been a bit more professional and cited the source this would not be a problem.  :(
Parent - By 803056 (*****) Date 08-08-2019 12:23
Don't bother, I just thought it was interesting because it included labels that are not typically included.

I generated one for my seminars where I included the typical temperature ranges for tempering and and stress relieving for the purpose of illustrating heating the steel to a temperature below the A1 (T1) is only going to reduce hardness. Increased hardness, ignoring the possibility of cold working, can only occur if the steel is heated above the A3 temperature and cooling it quickly.

I can add your labels to my sketch of the Iron-Iron Carbide diagram. More information is usually better.

Best regards - Al
Up Topic Welding Industry / Metallurgy / metallurgy, HAZ, distortion

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