Al含量对多相增强CuZr基非晶复合材料组织性能的影响  

Effects of Al Content on Structure and Properties of Multi-phase Reinforced CuZr Based Amorphous Composites

作　　者：李龙丰 张震 吕书林 王锦程[2] 吴树森[1] 郭威 Li Longfeng;Zhang Zhen;Lu Shulin;Wang Jincheng;Wu Shusen;Guo Wei(State Key Laboratory of Material Processing and Die&Mould Technology,School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074;State Key Laboratory of Solidifiction Processing,Northwestern Polytechnical University,Xi’an 710072;Research Institute of Huazhong University of Science and Technology in Shenzhen,Shenzhen 518057)

机构地区：[1]华中科技大学材料科学与工程学院,材料成形与模具技术全国重点实验室,武汉430074 [2]西北工业大学凝固技术国家重点实验室,西安710072 [3]深圳华中科技大学研究院,深圳518057

出　　处：《特种铸造及有色合金》2024年第2期263-266,共4页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目(52101138);湖北省自然科学基金资助项目(2023AFB798);深圳市科技计划资助项目(JCYJ20220530160813032);西北工业大学凝固技术国家重点实验室开放基金资助项目(SKLSP202309)。

摘　　要：针对具有多相复合结构的[(Zr_(0.5)Cu_(0.5))_(99.5-x)Al_(x)Sn_(0.5)]_(0.9)7Ta_(3)(摩尔比)非晶复合材料,通过调控Al含量(x=5,6,8),探讨了非晶复合材料微观组织及力学性能的变化规律。研究表明,Al含量会对复合体系中基体的非晶形成能力产生影响。随着Al含量的增大,体系中的非晶形成能力先增大后减小。非晶形成能力的变化会对凝固过程中析出的多相增强结构含量及尺寸产生相应影响,进而影响非晶复合材料的屈服强度和塑性变形能力。因此,可根据不同性能需求进行成分选择,实现合金组织与性能的可调可控。The microstructure and mechanical properties of[(Zr_(0.5)Cu_(0.5))_(99.5-x)Al_(x)Sn_(0.5)]_(0.97)Ta_(3)(molar ratio)amorphous alloy matrix composites with multiple reinforcing phases were investigated by adjusting Al content(x=5,6,8).The results indicate that Al content affects the glass formation ability of matrix.With the increase of Al content,the glass formation ability of system is increased firstly and then decreased.The variation of glass formation ability has a corresponding effect on content and dimension of the multi-phase reinforcing structure during solidification,thus affecting the yield strength and plastic deformation of amorphous composites.Therefore,the composition can be selected according to different performance requirements to achieve the adjustability and controllability of microstructure and properties.

关 键 词：非晶复合材料 非晶形成能力 多相增强 强韧性 

分 类 号：TB331[一般工业技术—材料科学与工程] TG139.8[金属学及工艺—合金]