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高强度耐磨黄铜是作为汽车同步器锥环的理想材料。这种材料之所以具有优良的综合机械性能和耐磨损性能,是因为材料中的Mn、Fe或Ni、Co等元素和Si或Al形成显微硬度很高的硅化物或铝化物颗粒,这些颗粒均匀而弥散分布于β(或α+β)基体上,形成了理想的软基体+硬质点的耐磨组织。正确地选用合金元素,合理地设计合金成分和采用一定的热处理工艺可以控制显微组织中硬质颗粒相的粒度、密度和分布,从而使材料的综合性能达到最佳状态。
High-strength, wear-resistant brass is ideal as a conical ring for automotive synchronizers. The reason why this material has excellent mechanical properties and wear resistance, because the material Mn, Fe or Ni, Co and other elements and Si or Al to form high hardness of the silicide or aluminide particles, these The particles are uniformly and dispersively distributed on the β (or α + β) matrix, forming an ideal soft matrix + hard point wear-resistant structure. The correct choice of alloying elements, the rational design of alloy composition and the use of a certain heat treatment process can control the microstructure of the hard particle phase size, density and distribution, so that the overall performance of the material to achieve the best condition.