【摘要】 制备了Ｚｒ 含量不同的三种ＣｕＺｎ 合金， 通过拉伸力学性能测试、金相和电镜观察， 研究了微量Ｚｒ 对合金组织和性能的影响。结果表明， 微量Ｚｒ 对合金有明显的强化和提高退火过程中抗软化温度的作用； 微量Ｚｒ 引起的强化来源于再结晶晶粒细化强化， 含Ｚｒ 的第二相析出强化和亚结构强化３个方面。更多还原

【Abstract】 Three kinds of Cu 13Zn alloys with different Zr contents were prepared. The influence of trace Zr on the microstructure and mechanical properties of Cu 13Zn was studied by means of tensile test, optical microscopy and transmission electron microscopy. The results show that adding trace Zr to Cu 13Zn alloy can greatly increase the strength of the alloy and enhance the recrystallization temperature range during annealing after cold rolling. Fine grain strengthening, precipitation strengthening and substructure strengthening caused by compounds containing Zr should be responsible for the strengthening of Cu Zn Zr alloys.更多还原