Iron - Revision history

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‎Phases of Iron

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‎Phases of Iron

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Tom: Created page with "==Definition== ==Context== The difference between austenite and ferrite: 1. Austenite: - Austenite represents a high-temperature, face-centered cubic (FCC) cr..."

2024-05-24T22:20:39Z

Created page with "==Definition== ==Context== The **difference between austenite and ferrite**: 1. **Austenite**: - Austenite represents a high-temperature, **face-centered cubic (FCC)** cr..."

New page

==Definition==

==Context==
The **difference between austenite and ferrite**:

1. **Austenite**:
- Austenite represents a high-temperature, **face-centered cubic (FCC)** crystal structure of iron and iron-based alloys.
- It is formed when iron or iron-based alloys are heated to high temperatures, typically above 912°C (1674°F) for pure iron.
- In the austenite phase, iron atoms arrange themselves in a face-centered cubic lattice structure, characterized by iron atoms at the corners of a cube and one in the center of each face.
- Austenite is relatively soft compared to other phases of iron.
- Alloying iron with elements like nickel, manganese, and chromium stabilizes the FCC structure, allowing austenite to be retained at lower temperatures.
- **Austenitic stainless steels**, which predominantly consist of austenite, are known for their corrosion resistance, hygiene, and aesthetics. They find use in kitchen appliances, cutlery, medical instruments, and architectural applications¹.

2. **Ferrite**:
- Ferrite is a crystalline phase commonly found in metallic materials.
- It is primarily formed when iron or iron-based alloys are cooled below a certain critical temperature (which varies based on alloy composition).
- The most common form of ferrite is **alpha ferrite**, which exhibits a **body-centered cubic (BCC)** crystal structure.
- Unlike austenite, ferrite is generally **magnetic** (ferromagnetic).
- Ferrite is often low in carbon content.
- It plays a crucial role in determining the properties and behavior of metals and alloys¹.

In summary:
- Austenite: FCC structure, non-magnetic or weakly magnetic, high-temperature phase.
- Ferrite: BCC structure, ferromagnetic, forms at lower temperatures.

Source: Conversation with Copilot, 5/24/2024
(1) What is the Difference Between Austenite and Ferrite. https://pediaa.com/what-is-the-difference-between-austenite-and-ferrite/.
(2) Austenite vs. Ferrite — What’s the Difference?. https://www.askdifference.com/austenite-vs-ferrite/.
(3) Austenitic vs Ferritic Steels - What's the Difference - ThePipingMart Blog. https://blog.thepipingmart.com/metals/austenitic-vs-ferritic-steel-whats-the-difference/.

==References==

[[Category: Physics]]

@@ Line 17: / Line 17: @@
 ** Epsilon iron, also known as hexaferrum, exists at very high pressures.
 ** It is a fourth form of iron beyond the standard three phases.
-** Epsilon iron is relevant for understanding the solid parts of planetary cores1.
+** Epsilon iron is relevant for understanding the solid parts of planetary cores.
 For Iron, ferromagnetic is a phase, like a permanent iron magnet. When you heat such a magnet to high enough temperature, it under-goes a phase transition and stops being magnetic. Its the difference between austenite and ferrite.<ref>Austenite vs. Ferrite — What’s the Difference?. https://www.askdifference.com/austenite-vs-ferrite/</ref><ref>Austenitic vs Ferritic Steels - What's the Difference - ThePipingMart Blog. https://blog.thepipingmart.com/metals/austenitic-vs-ferritic-steel-whats-the-difference/</ref>

@@ Line 2: / Line 2: @@
 ==Phases of Iron==
 A phase is a state of matter whose properties vary smoothly (i.e. it is an analytic function of P ; V ; T etc). Connecting phase to smoothness properties allows to shift focus from phases themselves to the transformations between phases called [[Phase Transitions]]. Phase transitions are an incredibly important area of physics.<ref>Matthew Schwartz, ''Phase Transitions'' https://scholar.harvard.edu/files/schwartz/files/9-phases.pdf</ref>
 For Iron, ferromagnetic is a phase, like a permanent iron magnet. When you heat such a magnet to high enough temperature, it under-goes a phase transition and stops being magnetic. Its the difference between austenite and ferrite.<ref>Austenite vs. Ferrite — What’s the Difference?. https://www.askdifference.com/austenite-vs-ferrite/</ref><ref>Austenitic vs Ferritic Steels - What's the Difference - ThePipingMart Blog. https://blog.thepipingmart.com/metals/austenitic-vs-ferritic-steel-whats-the-difference/</ref>

@@ Line 1: / Line 1: @@
 ==Definition==
 ==Phases of Iron==
-A phase is a state of matter whose properties vary smoothly (i.e. it is an analytic function of P ; V ; T etc). Connecting phase to smoothness properties allows to shift focus from phases themselves to the transformations between phases called phase transitions. Phase transitions are an incredibly important area of physics.<ref>Matthew Schwartz, ''Phase Transitions'' https://scholar.harvard.edu/files/schwartz/files/9-phases.pdf</ref>
+A phase is a state of matter whose properties vary smoothly (i.e. it is an analytic function of P ; V ; T etc). Connecting phase to smoothness properties allows to shift focus from phases themselves to the transformations between phases called [[Phase Transitions]]. Phase transitions are an incredibly important area of physics.<ref>Matthew Schwartz, ''Phase Transitions'' https://scholar.harvard.edu/files/schwartz/files/9-phases.pdf</ref>
 For Iron, ferromagnetic is a phase, like a permanent iron magnet. When you heat such a magnet to high enough temperature, it under-goes a phase transition and stops being magnetic. Its the difference between austenite and ferrite.<ref>Austenite vs. Ferrite — What’s the Difference?. https://www.askdifference.com/austenite-vs-ferrite/</ref><ref>Austenitic vs Ferritic Steels - What's the Difference - ThePipingMart Blog. https://blog.thepipingmart.com/metals/austenitic-vs-ferritic-steel-whats-the-difference/</ref>

@@ Line 1: / Line 1: @@
 ==Definition==
 ==Phases of Iron==
-A phase is a state of matter whose properties vary smoothly (i.e. it is an analytic function
+A phase is a state of matter whose properties vary smoothly (i.e. it is an analytic function of P ; V ; T etc). Connecting phase to smoothness properties allows to shift focus from phases themselves to the transformations between phases called phase transitions. Phase transitions are an incredibly important area of physics.<ref>Matthew Schwartz, ''Phase Transitions'' https://scholar.harvard.edu/files/schwartz/files/9-phases.pdf</ref>
 For Iron, ferromagnetic is a phase, like a permanent iron magnet. When you heat such a magnet to high enough temperature, it under-goes a phase transition and stops being magnetic. Its the difference between austenite and ferrite.<ref>Austenite vs. Ferrite — What’s the Difference?. https://www.askdifference.com/austenite-vs-ferrite/</ref><ref>Austenitic vs Ferritic Steels - What's the Difference - ThePipingMart Blog. https://blog.thepipingmart.com/metals/austenitic-vs-ferritic-steel-whats-the-difference/</ref>

← Older revision		Revision as of 22:36, 24 May 2024
Line 4:		Line 4:
	of P ; V ; T etc).<ref>Matthew Schwartz, ''Phase Transitions'' https://scholar.harvard.edu/files/schwartz/files/9-phases.pdf</ref>		of P ; V ; T etc).<ref>Matthew Schwartz, ''Phase Transitions'' https://scholar.harvard.edu/files/schwartz/files/9-phases.pdf</ref>

−	~~==Context==~~
	For Iron, ferromagnetic is a phase, like a permanent iron magnet. When you heat such a magnet to high enough temperature, it under-goes a phase transition and stops being magnetic. Its the difference between austenite and ferrite.<ref>Austenite vs. Ferrite — What’s the Difference?. https://www.askdifference.com/austenite-vs-ferrite/</ref><ref>Austenitic vs Ferritic Steels - What's the Difference - ThePipingMart Blog. https://blog.thepipingmart.com/metals/austenitic-vs-ferritic-steel-whats-the-difference/</ref>		For Iron, ferromagnetic is a phase, like a permanent iron magnet. When you heat such a magnet to high enough temperature, it under-goes a phase transition and stops being magnetic. Its the difference between austenite and ferrite.<ref>Austenite vs. Ferrite — What’s the Difference?. https://www.askdifference.com/austenite-vs-ferrite/</ref><ref>Austenitic vs Ferritic Steels - What's the Difference - ThePipingMart Blog. https://blog.thepipingmart.com/metals/austenitic-vs-ferritic-steel-whats-the-difference/</ref>

← Older revision		Revision as of 22:36, 24 May 2024
Line 1:		Line 1:
	==Definition==		==Definition==
		+	==Phases of Iron==
		+	A phase is a state of matter whose properties vary smoothly (i.e. it is an analytic function
		+	of P ; V ; T etc).<ref>Matthew Schwartz, ''Phase Transitions'' https://scholar.harvard.edu/files/schwartz/files/9-phases.pdf</ref>

	==Context==		==Context==

@@ Line 2: / Line 2: @@
 ==Context==
-For Iron, ferromagnetic is a phase, like a permanent iron magnet. When you heat such a magnet to high enough temperature, it under-goes a phase transition and stops being magnetic. Its the difference between austenite and ferrite.
+For Iron, ferromagnetic is a phase, like a permanent iron magnet. When you heat such a magnet to high enough temperature, it under-goes a phase transition and stops being magnetic. Its the difference between austenite and ferrite.<ref>Austenite vs. Ferrite — What’s the Difference?. https://www.askdifference.com/austenite-vs-ferrite/</ref><ref>Austenitic vs Ferritic Steels - What's the Difference - ThePipingMart Blog. https://blog.thepipingmart.com/metals/austenitic-vs-ferritic-steel-whats-the-difference/</ref>
 . **Austenite**:
@@ Line 23: / Line 23: @@
 * Austenite: FCC structure, non-magnetic or weakly magnetic, high-temperature phase.
 * Ferrite: BCC structure, ferromagnetic, forms at lower temperatures.
 ==References==
 [[Category: Physics]]

@@ Line 10: / Line 10: @@
     - Austenite is relatively soft compared to other phases of iron.
     - Alloying iron with elements like nickel, manganese, and chromium stabilizes the FCC structure, allowing austenite to be retained at lower temperatures.
-    - **Austenitic stainless steels**, which predominantly consist of austenite, are known for their corrosion resistance, hygiene, and aesthetics. They find use in kitchen appliances, cutlery, medical instruments, and architectural applications¹.
+    - **Austenitic stainless steels**, which predominantly consist of austenite, are known for their corrosion resistance, hygiene, and aesthetics. They find use in kitchen appliances, cutlery, medical instruments, and architectural applications.<ref>What is the Difference Between Austenite and Ferrite. https://pediaa.com/what-is-the-difference-between-austenite-and-ferrite/</ref>
 . **Ferrite**:
@@ Line 20: / Line 20: @@
     - It plays a crucial role in determining the properties and behavior of metals and alloys¹.
-In summary:
+so:
-- Austenite: FCC structure, non-magnetic or weakly magnetic, high-temperature phase.
+* Austenite: FCC structure, non-magnetic or weakly magnetic, high-temperature phase.
-- Ferrite: BCC structure, ferromagnetic, forms at lower temperatures.
+* Ferrite: BCC structure, ferromagnetic, forms at lower temperatures.
 Source: Conversation with Copilot, 5/24/2024
- (1) What is the Difference Between Austenite and Ferrite. https://pediaa.com/what-is-the-difference-between-austenite-and-ferrite/.
   (2) Austenite vs. Ferrite — What’s the Difference?. https://www.askdifference.com/austenite-vs-ferrite/.
   (3) Austenitic vs Ferritic Steels - What's the Difference - ThePipingMart Blog. https://blog.thepipingmart.com/metals/austenitic-vs-ferritic-steel-whats-the-difference/.

Iron - Revision history

Tom: /* Phases of Iron */

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Tom: Created page with "==Definition== ==Context== The **difference between austenite and ferrite**: 1. **Austenite**: - Austenite represents a high-temperature, **face-centered cubic (FCC)** cr..."

Tom: Created page with "==Definition== ==Context== The difference between austenite and ferrite: 1. Austenite: - Austenite represents a high-temperature, face-centered cubic (FCC) cr..."