How Samurai Swords get their Iconic Curve - Martensite!

Moment at 18:59 in How Japanese Masters Turn Sand Into Swords by Veritasium.

How Japanese Masters Turn Sand Into Swords

Saved by Curtis Pyke.

Links to other pages

• Home
• 24
• Recent
• Vikis
• Creators
• Search

Discover other moments and creators

• How Japanese Swords are made - slice a bullet in half!
• The method of making these swords
• 105 Million for ONE SWORD
• Shimane - One Night Each year!
• Invited! Nice!
• Bronze Before Steel - bends easy!
• Steel is an alloy of Iron
• Japan - Has very little iron - why late to Steel Production
• Iron accumulates where direction changes
• 1250 Celsius = pure iron!
• Soft Iron + Charcoal = awesomeness
• Carbon + Iron = Steel
• Iron Sand + water --> too much water = explosion
• 250kg charcool & 60 kg Iron sand
• 614 kg iron sand and 670 kg charcool in smelter
• Crane --> smelter --> 100 kg block, 1/3 cn be used for swords
• Steel sorted by carbon content - sent to swordsmiths
• forge Sword
• Why fold and hammer the steel so much?
• Some sword with over 1 billion layers - wtf?
• Different Carbon Percentages Used In different parts of the blade
• Edge is High Carbon Steel
• Clay Layer added, rapidly cooled - quenching
• When steel is heated...
• Combination of Ferrite Steel & Cementite = Perlite
• Thin Layer cools rapidly - lattice structure changes - MARTENSITE!
• How Samurai Swords get their Iconic Curve - Martensite!
• Polisher and Sharpening - Can take a month to polish / sharpen!

• All Heartbeat Photos features - No fluff
• Dragon flies in
• Everyone shooting at Wonder Woman
• All Heartbeat features - No fluff
• Who did you fire? Senator drills Mark Zuckerberg, CEO of Facebook
• Elvis actor cast as Harkonnen Feyd-Rautha
• "Do you like to dance?" Aviendha asks
• Graduation day
• Sexy squeeze through a narrow gap
• Dune: Part 2 - Riding the sandworm
• Drink a spicy margarita, make some bad decisions
• Use a lifeline - Call my parents
• And our son?
• Electric desk in action
• Almost monetized on YouTube
• Anytime you say "algorithm" replace it with "audience"
• The bureaucracy is expanding to meet the needs of the expanding bureaucracy
• Egwene vs Ishamael - Wheel of Time
• Step outside the world's tallest building
• Great Wall of China - Civ4
• End of work from home #funny
• How do you make God laugh?
• "Fools!" said I "You do not know"
• Heartbeat Payday #2 ❤️
• See the color changes
• Attack Death
• Come on! Hit me! Conan O'Brien punched by Maria Menounos in the abs
• 10-year anniversary of Freedom!