What did Quenching and Tempering look like?

The process itself is invisible. The finished steel blade edge exhibits a quenched microstructure (martensite), while the core retains toughness (pearlite/sorbite).

How did Quenching and Tempering work?

Steel heated to critical temperature ~750-850°C → austenitization → rapidly quenched in water/oil → forms high-hardness martensite → reheated to 200-400°C for tempering → stress relief and toughness recovery.

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淬火与回火工艺

Quenching and Tempering

Mastery of steel heat treatment: rapid cooling (quenching) to increase hardness, followed by reheating (tempering) to reduce brittleness, enabling precise control of steel properties.

淬火与回

Scientific Principle

Martensitic transformation: FCC → BCT, carbon atom supersaturation. Tempering: martensite decomposes into ferrite + cementite.

淬火与回火工艺

Quenching and Tempering

Scientific Principle

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