论文部分内容阅读
采用扫描电镜(SEM)、X射线衍射(XRD)和力学性能测试等手段研究了固溶处理对ZA27合金组织和性能的影响。在300~380℃范围,合金经不同温度固溶处理1 h,水淬后进行相同的时效(160℃×8 h)处理。分析了在不同温度固溶处理的淬火态和时效态合金的显微组织及力学性能。结果表明,在365℃固溶处理能够使溶质原子充分溶入基体,时效析出相数量多、尺寸小、分布均匀,时效强化效果最好。ZA27合金的优选固溶工艺为365℃×1 h。
The effects of solution treatment on microstructure and properties of ZA27 alloy were studied by scanning electron microscopy (SEM), X-ray diffraction (XRD) and mechanical properties testing. In the range of 300 ~ 380 ℃, the alloys were treated by solution treatment at different temperatures for 1 h, and treated by the same aging (160 ℃ × 8 h) after water quenching. The microstructure and mechanical properties of quenched and aged alloys at different temperatures were analyzed. The results show that solution treatment at 365 ℃ can dissolve the solute atoms into the matrix. The number of precipitated phases is large, the size is small and the distribution is uniform. The effect of aging strengthening is the best. ZA27 alloy solution of the preferred solid solution was 365 ℃ × 1h.