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1.a solid solution of carbon in alpha-iron that is formed when steel is cooled so rapidly that the change from austenite to pearlite is suppressed; responsible for the hardness of quenched steel.
含碳α铁固体溶体，钢从奥氏体向珠光体转变过程因急速冷却受到抑制时形成，是淬火钢坚硬的原因。收藏指正
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