张志彬 周志丹

摘 要：為了解决铝基非晶合金在形成过程中容易析出α-Al晶体导致玻璃形成能力较低且不易评估的问题，设计了简单易行的玻璃形成能力评估方法，对非晶AlNiZr合金成分进行优化。首先，制备9种不同组分的AlNiZr合金铸锭;然后，在相同制备条件下，用单辊甩带法制备不同组分的合金薄带;最后，采用X射线衍射仪对薄带进行XRD表征，基于XRD结果拟合计算合金薄带的非晶含量。结果表明：在合金组分Al100-x-yNixZry中，随着Ni含量的增加玻璃形成能力提高，随着Zr含量的增加玻璃形能力成降低;当Zr含量为3%时，进一步增加Ni含量达到20%和25%，合金的玻璃形成能力降低，Al82Ni15Zr3具有更好的玻璃形成能力。通过对非晶AlNiZr合金成分的优化，可以为不含稀土元素的铝基合金的玻璃形成能力评估提供新的方法，拓展其在设备防护领域的应用空间。

关键词：非晶、微晶金属材料;铝基合金;非晶合金;玻璃形成能力;组分优化;非晶含量

中图分类号：TG139+.8;TB31   文献标识码：A

doi：10.7535/hbkd.2021yx04011

收稿日期：2021-05-24;修回日期：2021-06-19;责任编辑：张士莹

基金项目：国家重点研发计划项目（2018YFC1902400）

第一作者简介：张志彬（1982—），男，河北邢台人，高级工程师，博士，主要从事铝基非晶材料及应用基础研究工作。

E-mail：eacbia@163.com

张志彬，周志丹.非晶AlNiZr合金成分的优化[J].河北科技大学学报，2021，42（4）：410-414.ZHANG Zhibin，ZHOU Zhidan.Composition optimization of amorphous AlNiZr alloys[J].Journal of Hebei University of Science and Technology，2021，42（4）：410-414.

Composition optimization of amorphous AlNiZr alloys

ZHANG Zhibin，ZHOU Zhidan

（National Innovation Institute of Defense Technology，Academy of Military Sciences of PLA，Beijing 100071，China）

Abstract：In order to solve the problem that the glass forming ability of Al-based amorphous alloy is not easy to be evaluated because of the easy precipitation of α-Al crystal in the glass forming process，a simple and feasible glass forming ability evaluation scheme was designedto optimize the composition of amorphous AlNiZr alloy.Firstly，nine kinds of AlNiZr alloy ingots with different compositions were prepared; Then，under the same preparation conditions，the alloy ribbons with different compositions were prepared by single-roll strip casting method; Finally，the ribbons were characterized by XRD，and the amorphous content of alloy ribbon was calculated based on the XRD results.The results show that the glass-forming ability of Al100-x-yNixZryincreases with the increase of Ni content and decreases with the increase of Zr content; When the Zr content is 3% and the Ni content is further increased to 20% and 25%，the glass-forming ability of the alloy is reduced，and Al82Ni15Zr3 alloy has better glass-forming ability.By optimizing the compositions of amorphous AlNiZr alloy，a new evaluation scheme of glass-forming ability can be provided for the Al-based alloy without rare earth elements，and its application space in the field of equipment protection can be expanded.

Keywords：

amorphous and microcrystalline metal materials;Al-based alloy;amorphous alloy;glass-forming ability;component optimization;amorphous content

与传统合金相比，非晶合金没有晶界，不存在孪晶和位错等缺陷，因此具有较好的强度和耐腐蚀性能[1-4]。近30年来，非晶合金的应用得到了飞速发展[5-9]。在工业化应用领域推广较好的是铁基非晶合金[10]，这主要得益于其高饱和磁感应强度、高磁导率、高玻璃形成能力，以及制备成本低等优势。……