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投稿时间：2022-03-22 修订日期：2022-05-19
投稿时间：2022-03-22 修订日期：2022-05-19
中文摘要: 负泊松比（negative Poisson’s ratio, NPR）超构材料因其优异的性能而被广泛应用于各工程领域。本文针对负泊松比超构材料的摩擦学性能，以丙烯腈–丁二烯–苯乙烯（ABS）材料为载体，基于典型内凹六边形负泊松比结构，利用熔融沉积成型3D打印技术制备了负泊松比试样和实体试样，结合环-块摩擦磨损试验、扫描电子显微镜、白光共焦3维形貌仪及有限元静力学应力应变分析等测试手段，对比研究了不同载荷（10、30、50 N）工况下NPR试样与实体试样摩擦学性能的差异性。结果表明：1）不同载荷下，NPR试样的应力与变形大于实体试样，且随着载荷增加，NPR试样内部单元的关节处出现应力，负泊松比效应更加明显；2）相同载荷下，NPR试样的摩擦系数较小，磨损量较大，且摩擦接触界面出现犁沟，基体产生磨粒磨损，随着载荷的增加，部分磨屑黏着在NPR试样摩擦表面，磨损机理转变为黏着磨损；3）在较大载荷（本文滚动试验条件为50 N）下，NPR试样负泊松比效应增强，发挥出更好的减振抗冲击性能和能量吸收与传递作用，相比于低载荷（30 N）工况摩擦系数减小，磨损量降低，有利于提高试样的摩擦学性能。研究成果丰富和完善了负泊松比摩擦学材料的研究体系，在材料科学研究前沿进行探索性尝试，为负泊松比材料在摩擦学工程领域应用提供基础数据和技术支撑。
Abstract:Negative Poisson’s ratio metamaterials are widely used in various engineering fields due to their excellent properties. In this paper, the tribological properties of negative Poisson’s Ratio (NPR) specimens and solid specimens were prepared by 3D printing technology (fused deposition melding) based on the typical concave hexagonal negative Poisson’s ratio structure using acrylonitrile-butadiene-styrene (ABS) material as the carrier. Combined with ring-block friction and wear test, SEM, white light confocal three-dimensional topography instrument, finite element static analysis and other tests, the difference of tribological properties between NPR specimens and solid specimens under different loads (10, 30, 50 N) was comparatively studied. The results show that: 1) under different loads, the stress and deformation of the NPR specimens were larger than those of the solid specimen, and the stress appears at the joints of the internal units of the NPR specimens with a more obvious effect of negative Poisson’s ratio as the load increases; 2) under the same load, the NPR specimens had a smaller friction coefficient and larger wear amount, and furrows appeared in the friction contact interface along with an abrasive wear on the substrate. The wear mechanism turned into adhesive wear with the increasing load because partial abrasive chip adheres to the friction surface of the NPR specimens; 3) under large load (50 N), the negative Poisson’s ratio effect of NPR specimens was enhanced, which exhibited better performance in vibration and impact resistance and energy absorption. Both friction coefficient and wear amount became lower than those under low load (30 N), which helped improve the tribological properties of the specimens. The research results have enriched and improved the research system of negative Poisson’s ratio tribological materials, and made exploratory attempts at the frontier of materials science research, providing basic data and technical support for the application of negative Poisson’s ratio materials in the field of tribological engineering.
文章编号：202200233 中图分类号：TH117 文献标志码：
基金项目:国家自然科学基金项目（52175183）；湖北省杰出青年基金项目（2020CFA089）
作者简介:第一作者：马利欣(1995-),男,硕士生,工程师.研究方向:机械摩擦学.E-mail:1070762192@qq.com;通信作者：段海涛,研究员,E-mail:duanhaitao2007@163.com
引用文本：
马利欣,马赛赛,杨田,詹胜鹏,贾丹,章武林,金义杰,段海涛.负泊松比超构材料摩擦学性能研究[J].工程科学与技术,2023,55(5):221-231.
MA Lixin,MA Saisai,YANG Tian,ZHAN Shengpeng,JIA Dan,ZHANG Wulin,JIN Yijie,DUAN Haitao.Research on the Tribological Properties of Negative Poisson’s Ratio Metamaterial[J].Advanced Engineering Sciences,2023,55(5):221-231.
引用文本：
马利欣,马赛赛,杨田,詹胜鹏,贾丹,章武林,金义杰,段海涛.负泊松比超构材料摩擦学性能研究[J].工程科学与技术,2023,55(5):221-231.
MA Lixin,MA Saisai,YANG Tian,ZHAN Shengpeng,JIA Dan,ZHANG Wulin,JIN Yijie,DUAN Haitao.Research on the Tribological Properties of Negative Poisson’s Ratio Metamaterial[J].Advanced Engineering Sciences,2023,55(5):221-231.