Editing Mars (section)

==Iron==
Lots of Iron on Mars.

Iron is first smelted into Pig Iron.

Cast Iron, strong but brittle. Wort iron lower carbon, but doesn't have the strength.

[https://en.wikipedia.org/wiki/Ironworks Ironworks]

[https://en.wikipedia.org/wiki/Electrolysis Electrolytic smelting] - Electrolytic smelting — Needs oxygen. Employs a chromium/iron anode that can survive a 2,850 °F (1,570 °C) to produce decarbonized iron and 2/3 of a ton of industrial-quality oxygen per ton of iron. A thin film of metal oxide forms on the anode in the intense heat. The oxide forms a protective layer that prevents excess consumption of the base metal.[2]

[https://en.wikipedia.org/wiki/Decarburization Decarburization]

[https://www.youtube.com/watch?v=RuCnZClWwpQ Smelting Iron in Africa]

[https://www.youtube.com/watch?v=FUhv2OnVVDU Making Viking-Age Bloomery Iron in a Bloomery Furnace]

[https://www.youtube.com/watch?v=zsywnQJMJEk Making Iron In The Woods - Bloomery Furnace]

[https://www.youtube.com/watch?v=0s9VYGsWlQ8 Iron Smelting demo - Sculptors Guild]

[https://www.youtube.com/watch?v=xGLHFoa-9Tg First Cast Iron Pour Event to launch Metal Monkeys]

[https://www.youtube.com/watch?v=1DyeESQpac0 How to build a small cast iron melting furnace]

[https://www.youtube.com/watch?v=gPf08sFpNXA Blacksmithing - Iron smelting and forging a poor bloom]

[https://www.youtube.com/watch?v=F3rjjpuhCLI Medieval Iron Production in Holland Thijs van de Manakker - smelting ore]

[https://www.youtube.com/watch?v=F0cuJKSQZ0k Iron - Engineering Channel] 43min - Boron and Neodynium make a super magnet (26min). Four Frontiers mars iron mining 40min. Pig Iron is just sitting on the surface.

Iron rails are not strong enough for trains. [https://www.youtube.com/watch?v=F1OdJb4hauw] 8:20m