The two phases have different properties. Most importantly they have very different carbon solubility. Austenite can dissolve a lot of C, ferrite almost none. This means you can dissolve a lot of C into austenite, and then when you cool to ferrite temps the carbon Does Things.
March 17, 2025 at 5:04 AM
The two phases have different properties. Most importantly they have very different carbon solubility. Austenite can dissolve a lot of C, ferrite almost none. This means you can dissolve a lot of C into austenite, and then when you cool to ferrite temps the carbon Does Things.
Yep. Cybertruck uses a proprietary alloy and they filed for a patent (calling it "Ultra-Hard"), but it's just another austenite stainless steel alloy, as the patent application shows. You wouldn't use it for armor or even for kitchen knives, it's too soft.
The science behind how thick a plate of stainless steel needs to be stop a 9mm round has been settled for over 100 years. Reporters could’ve fact checked this the moment Musk made the claim.
If 2mm of metal could stop a bullet, WW2 would’ve been fought in plate armor.
If 2mm of metal could stop a bullet, WW2 would’ve been fought in plate armor.
lol everything about this junk is a lie futurism.com/the-byte/bul...
March 12, 2024 at 2:09 PM
Yep. Cybertruck uses a proprietary alloy and they filed for a patent (calling it "Ultra-Hard"), but it's just another austenite stainless steel alloy, as the patent application shows. You wouldn't use it for armor or even for kitchen knives, it's too soft.
Gonna sketch my grand structuralist theory of Persuasion. Buckle up, my Austenite buds 🛁
May 24, 2026 at 11:06 PM
Gonna sketch my grand structuralist theory of Persuasion. Buckle up, my Austenite buds 🛁
The phase diagram is key. Iron has two different phases (crystalline arrangement of atoms) above/below 910°C. The high temperature austenite phase is face-centered cubic, the low temperature ferrite phase is body-centered cubic. Adding carbon changes this transformation temperature quite a bit.
March 17, 2025 at 5:04 AM
The phase diagram is key. Iron has two different phases (crystalline arrangement of atoms) above/below 910°C. The high temperature austenite phase is face-centered cubic, the low temperature ferrite phase is body-centered cubic. Adding carbon changes this transformation temperature quite a bit.
Cool slowly and the carbon gets squeezed out as the ferrite forms, forming a hard iron carbide called cementite (Fe3C). The mechanics of this produce a fine structure of alternating (lamellar) ferrite and cementite layers, which we call pearlite. Pearlite is much stronger than ferrite or austenite.
March 17, 2025 at 5:04 AM
Cool slowly and the carbon gets squeezed out as the ferrite forms, forming a hard iron carbide called cementite (Fe3C). The mechanics of this produce a fine structure of alternating (lamellar) ferrite and cementite layers, which we call pearlite. Pearlite is much stronger than ferrite or austenite.
People will come into the spec sheets and say anything. "I need a prior austenite of 5 or finer" no you don't. That's not true
Why are you, in the year 2024, still calling out a mcquaid-ehn prior austenite grain size test on modern finegrain-practice high strength carbon steels? To piss on me, and my time? To insult my family and my clan?
May 1, 2024 at 7:33 PM
People will come into the spec sheets and say anything. "I need a prior austenite of 5 or finer" no you don't. That's not true
Why are you, in the year 2024, still calling out a mcquaid-ehn prior austenite grain size test on modern finegrain-practice high strength carbon steels? To piss on me, and my time? To insult my family and my clan?
May 1, 2024 at 7:30 PM
Why are you, in the year 2024, still calling out a mcquaid-ehn prior austenite grain size test on modern finegrain-practice high strength carbon steels? To piss on me, and my time? To insult my family and my clan?
As an Austenite, I just want to say PLEASE!!!
March 25, 2025 at 12:42 AM
As an Austenite, I just want to say PLEASE!!!
The geometry of the two forms produces something called 'crystal twinning', overlapping symmetrical lattice points.
The complex martensite can be deformed, worked, manipulated, but austenite has a more rigid form, so demonstrates a phenomenon of "hysteresis" (cause-effect lag).
The complex martensite can be deformed, worked, manipulated, but austenite has a more rigid form, so demonstrates a phenomenon of "hysteresis" (cause-effect lag).
March 7, 2025 at 2:30 PM
The geometry of the two forms produces something called 'crystal twinning', overlapping symmetrical lattice points.
The complex martensite can be deformed, worked, manipulated, but austenite has a more rigid form, so demonstrates a phenomenon of "hysteresis" (cause-effect lag).
The complex martensite can be deformed, worked, manipulated, but austenite has a more rigid form, so demonstrates a phenomenon of "hysteresis" (cause-effect lag).
We don't need no fancy austenite in our steels. Gud ole fashioned ferrite, just like momma used to make.
March 3, 2025 at 10:09 PM
We don't need no fancy austenite in our steels. Gud ole fashioned ferrite, just like momma used to make.
You can deform it all you like, but apply heat, and it transforms back to the "parent form".
The 1:1 mix of titanium & nickel can form two crystalline forms: the simpler 'austenite' at high temps & more complex 'martensite' at low temps.
The shift is essentially instantaneous.
The 1:1 mix of titanium & nickel can form two crystalline forms: the simpler 'austenite' at high temps & more complex 'martensite' at low temps.
The shift is essentially instantaneous.
March 7, 2025 at 2:30 PM
You can deform it all you like, but apply heat, and it transforms back to the "parent form".
The 1:1 mix of titanium & nickel can form two crystalline forms: the simpler 'austenite' at high temps & more complex 'martensite' at low temps.
The shift is essentially instantaneous.
The 1:1 mix of titanium & nickel can form two crystalline forms: the simpler 'austenite' at high temps & more complex 'martensite' at low temps.
The shift is essentially instantaneous.
A crystalline combination of austenite and martensite works wonders. Pearlite can replace the martensite in a pinch.
September 30, 2026 at 5:12 AM
A crystalline combination of austenite and martensite works wonders. Pearlite can replace the martensite in a pinch.
it's got an as delivered grain size of like 9.5 why the fuck am i doing prior austenite this is why we add aluminum these days
May 1, 2024 at 7:38 PM
it's got an as delivered grain size of like 9.5 why the fuck am i doing prior austenite this is why we add aluminum these days
always elaborating echoing austenite obligation diffusions half sores flawed unreported
For more images visit https://www.instagram.com/usartwork
#filtermania #mirroreffect #videoscan #imagemanipulation #imagefiltering #imageprocessing #digitalart #opart #polarefffect
For more images visit https://www.instagram.com/usartwork
#filtermania #mirroreffect #videoscan #imagemanipulation #imagefiltering #imageprocessing #digitalart #opart #polarefffect
September 22, 2026 at 8:01 PM
always elaborating echoing austenite obligation diffusions half sores flawed unreported
For more images visit https://www.instagram.com/usartwork
#filtermania #mirroreffect #videoscan #imagemanipulation #imagefiltering #imageprocessing #digitalart #opart #polarefffect
For more images visit https://www.instagram.com/usartwork
#filtermania #mirroreffect #videoscan #imagemanipulation #imagefiltering #imageprocessing #digitalart #opart #polarefffect
“I am very fond of a long walk.” Jane Austen’s Persuasion
#JaneAusten #Persuasion #Regency #Regencyfashion #austenite #austenquotes #ilovejaneausten #janeaustenjunkie
#JaneAusten #Persuasion #Regency #Regencyfashion #austenite #austenquotes #ilovejaneausten #janeaustenjunkie
November 15, 2024 at 3:07 PM
“I am very fond of a long walk.” Jane Austen’s Persuasion
#JaneAusten #Persuasion #Regency #Regencyfashion #austenite #austenquotes #ilovejaneausten #janeaustenjunkie
#JaneAusten #Persuasion #Regency #Regencyfashion #austenite #austenquotes #ilovejaneausten #janeaustenjunkie
Today I'm over at writer and Austenite Frances Duncan's blog talking about writing process and world-building.
Check out the interview and also get a chance to win a free ebook of Mr Collins in Love, my m/m romance Pride and Prejudice retelling...
francesduncandoes.com/blog/
Check out the interview and also get a chance to win a free ebook of Mr Collins in Love, my m/m romance Pride and Prejudice retelling...
francesduncandoes.com/blog/
Blog – Frances Duncan
francesduncandoes.com
February 20, 2026 at 3:34 AM
Today I'm over at writer and Austenite Frances Duncan's blog talking about writing process and world-building.
Check out the interview and also get a chance to win a free ebook of Mr Collins in Love, my m/m romance Pride and Prejudice retelling...
francesduncandoes.com/blog/
Check out the interview and also get a chance to win a free ebook of Mr Collins in Love, my m/m romance Pride and Prejudice retelling...
francesduncandoes.com/blog/
born and raised austenite and moved recently "wretched miserable city" id the most accurate description lol
that being said Houston is hell on earth and austin is more like medieval torture?
that being said Houston is hell on earth and austin is more like medieval torture?
March 9, 2025 at 12:20 AM
born and raised austenite and moved recently "wretched miserable city" id the most accurate description lol
that being said Houston is hell on earth and austin is more like medieval torture?
that being said Houston is hell on earth and austin is more like medieval torture?
It is ok not to post your comments. No real Austenite would be mad. I read my first Austen (S&S) in 1965, when the heroines were older than I was; and now they are the age of my great niece. So I have enjoyed your fresh look.
September 20, 2026 at 5:22 PM
It is ok not to post your comments. No real Austenite would be mad. I read my first Austen (S&S) in 1965, when the heroines were older than I was; and now they are the age of my great niece. So I have enjoyed your fresh look.
I certainly didn’t resemble the screen image for an austenite costume drama!
June 12, 2026 at 3:10 AM
I certainly didn’t resemble the screen image for an austenite costume drama!
the mcquaid-ehn procedure is an extremely roundabout and indirect way to half-ass measure the size of austenite grains which as you'll see from your chart are something that only exist above like 1600F minimum and it is a total pain in the fucking ass
May 1, 2024 at 7:41 PM
the mcquaid-ehn procedure is an extremely roundabout and indirect way to half-ass measure the size of austenite grains which as you'll see from your chart are something that only exist above like 1600F minimum and it is a total pain in the fucking ass
If you're into Regency stuff, and particularly Austen, I recommend checking them out—there are events all the time here in England, and they're also connected to the (very active) Austen scene in the US.
(I'm not at all an Austenite, but I'm being, uh, persuaded).
(I'm not at all an Austenite, but I'm being, uh, persuaded).
May 31, 2025 at 4:07 PM
If you're into Regency stuff, and particularly Austen, I recommend checking them out—there are events all the time here in England, and they're also connected to the (very active) Austen scene in the US.
(I'm not at all an Austenite, but I'm being, uh, persuaded).
(I'm not at all an Austenite, but I'm being, uh, persuaded).
I cannot for the life of me pick a favourite quote.
By the way, if like me you are equal parts yarny 🧶 and Austenite, follow K, she’s hilarious.
By the way, if like me you are equal parts yarny 🧶 and Austenite, follow K, she’s hilarious.
Happy publication anniversary to Pride and a Prejudice!!!!
Post your favorite quote or the best worst character.
Post your favorite quote or the best worst character.
January 29, 2025 at 10:20 AM
I cannot for the life of me pick a favourite quote.
By the way, if like me you are equal parts yarny 🧶 and Austenite, follow K, she’s hilarious.
By the way, if like me you are equal parts yarny 🧶 and Austenite, follow K, she’s hilarious.
🚨New paper: "Improving parent-austenite twinned grain reconstruction using electron backscatter diffraction in low carbon austenite" by @drruthb.bsky.social @bmatb.expmicromech.com and Warren Poole in Scripta Materialia (2025) - we use #EBSD and improve the analysis of steel
doi.org/10.1016/j.sc...
doi.org/10.1016/j.sc...
November 19, 2024 at 1:33 AM
🚨New paper: "Improving parent-austenite twinned grain reconstruction using electron backscatter diffraction in low carbon austenite" by @drruthb.bsky.social @bmatb.expmicromech.com and Warren Poole in Scripta Materialia (2025) - we use #EBSD and improve the analysis of steel
doi.org/10.1016/j.sc...
doi.org/10.1016/j.sc...
Also if you work the steel wrong it is fairly easy to lose carbon from the austenite less-stainless steel, & Tesla has not demonstrated much talent for working their stainless steel.
I wonder if anyone with a Cybertruck has a nickel allergy...
I wonder if anyone with a Cybertruck has a nickel allergy...
February 14, 2024 at 7:37 PM
Also if you work the steel wrong it is fairly easy to lose carbon from the austenite less-stainless steel, & Tesla has not demonstrated much talent for working their stainless steel.
I wonder if anyone with a Cybertruck has a nickel allergy...
I wonder if anyone with a Cybertruck has a nickel allergy...
Oh! Get how cute this is. My partner and I were brainstorming what to do for Valentines Day and we've decided we're going to view the 2005 Pride & Prejudice while cooking up a small tea party to have while we watch. He knows I'm a complete Austenite and wants in on the action. I love him so much.
January 23, 2026 at 6:53 PM
Oh! Get how cute this is. My partner and I were brainstorming what to do for Valentines Day and we've decided we're going to view the 2005 Pride & Prejudice while cooking up a small tea party to have while we watch. He knows I'm a complete Austenite and wants in on the action. I love him so much.