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Why is quenched steel often tempered afterward?

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  1. To make brittle martensite tougher
  2. To make it even harder
  3. To make it fully soft again

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References

  1. MIT OpenCourseWare Heat Treatment of Steel ocw.mit.edu/courses/2-002-mechanics-and-materials-ii-spring-2004/750ccb5eb0b82814883944ddab3fa166_lab5_s04_1045new.pdf Checked 2026-10-10.

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