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适当频率和功率密度的超声淬火能够改善中、高碳钢淬火组织,使主要力学性能显著提高。45钢强度σ_s和σ_b 分别达到816MPa 和898MPa;T10钢硬度和α_k值分别达到65.8HRC 和4.1J/cm~2。超声淬火的主要机制是超声波场—声子耦合改变相变的能量条件,提高形核率。碳钢超声淬火有效频率与含碳量有关,含碳量越高,有效频率越低。高碳钢超声淬火具有自回火特性。
The ultrasonic quenching with appropriate frequency and power density can improve the quenching structure of medium and high carbon steel, and improve the main mechanical properties remarkably. 45 steel strength σ_s and σ_b respectively 816MPa and 898MPa; T10 steel hardness and α_k values were 65.8HRC and 4.1J / cm ~ 2. Ultrasonic quenching is the main mechanism of ultrasonic field - phonon coupling to change the phase transition energy conditions, improve the nucleation rate. Carbon steel ultrasonic hardening effective frequency and carbon content, the higher the carbon content, the lower the effective frequency. High-carbon steel ultrasonic hardening with self-tempering characteristics.