摘要
研究了Ti-13Nb-13Zr合金在β相区和α+β相区固溶和时效处理后合金的力学性能变化规律。利用光学显微镜、扫描电镜和透射电镜观察和X射线衍射分析,重点分析了不同显微组织对合金强韧性的影响。结果表明:含有一定数量初生α析出相的加工态组织具有较高的强度和断裂韧性。固溶时效处理后,随着显微组织的形貌、晶粒大小和数量的不同,其对强度和断裂韧性的影响也有所不同。
This work describes the mechanical properties of the Ti-13Nb-13Zr alloy that was subjected to the solution treatments in P and alpha+beta regions followed by an aging. The effects of microstructure on the tensile strength and fracture toughness of the alloy were studied by using optical microscopy, scanning electron microscopy, transmission electron and X-ray diffraction. Experimental results indicate that the hot rolling specimen with aging treatment has higher tensile strength and K-IC due to the microstructure containing an amount of alpha(s) precipitation. After solution and aging treatment, the effects of morphology, grain size and quantity on the tensile strength and fracture toughness were different.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2005年第6期881-885,共5页
Rare Metal Materials and Engineering
基金
国家高技术研究发展计划(2002AA326070)资助项目
