针对45#钢进行切削,以YT15车刀为对比,研究了CrAlN纳米梯度涂层的切削性能,利用Fluke Ti X640型热成像仪测试了切削过程中切削区的切削温度,采用超景深三维显微镜观察了刀具的磨痕形貌。结果表明:CrAlN纳米梯度涂层刀具具有更低的切削温...针对45#钢进行切削,以YT15车刀为对比,研究了CrAlN纳米梯度涂层的切削性能,利用Fluke Ti X640型热成像仪测试了切削过程中切削区的切削温度,采用超景深三维显微镜观察了刀具的磨痕形貌。结果表明:CrAlN纳米梯度涂层刀具具有更低的切削温度,使用寿命比YT15车刀使用寿命约延长了1.5倍。刀具磨损失效以磨料磨损为主。展开更多
A new one-dimensional gradient material with graded sizes was prepared. A two-step anodic oxidation of high purity aluminum was used to fabricate porous alumina templates with graded pore sizes. Based on the templates...A new one-dimensional gradient material with graded sizes was prepared. A two-step anodic oxidation of high purity aluminum was used to fabricate porous alumina templates with graded pore sizes. Based on the templates, metal silver graded nanowires were obtained by electrochemical deposition. SEM and TEM results show that the resulted metal silver nanowires have obvious graded diameters with gradient ranging from about 12 to 31 nm along the nanowire direction, and are single-crystalline with a preferential growth along <100> direction.展开更多
文摘针对45#钢进行切削,以YT15车刀为对比,研究了CrAlN纳米梯度涂层的切削性能,利用Fluke Ti X640型热成像仪测试了切削过程中切削区的切削温度,采用超景深三维显微镜观察了刀具的磨痕形貌。结果表明:CrAlN纳米梯度涂层刀具具有更低的切削温度,使用寿命比YT15车刀使用寿命约延长了1.5倍。刀具磨损失效以磨料磨损为主。
基金National Natural Science Foundation of China(No.52201103)Natural Science Basis Research Plan in Shaanxi Province of China(No.2023JCYB445)Fundamental Research Funds for the Central Universities of CHD(Nos.300102122201,300102122106)。
文摘A new one-dimensional gradient material with graded sizes was prepared. A two-step anodic oxidation of high purity aluminum was used to fabricate porous alumina templates with graded pore sizes. Based on the templates, metal silver graded nanowires were obtained by electrochemical deposition. SEM and TEM results show that the resulted metal silver nanowires have obvious graded diameters with gradient ranging from about 12 to 31 nm along the nanowire direction, and are single-crystalline with a preferential growth along <100> direction.
