相关实验视频

Updated: Jul 13, 2026

Characterization of Surface Modifications by White Light Interferometry: Applications in Ion Sputtering, Laser Ablation, and Tribology Experiments

Characterization of Surface Modifications by White Light Interferometry: Applications in Ion Sputtering, Laser Ablation, and Tribology Experiments

Published on: February 27, 2013

激光覆盖的中等度FeNiCr-B₄C涂层的机械和结构特征

Artem Okulov¹, Yury Korobov¹, Alexander Stepchenkov¹

¹M.N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, 620108 Ekaterinburg, Russia.

Materials (Basel, Switzerland)

|August 12, 2023

概括

将碳化物 (B₄C) 添加到等原子中型合金 (MEA) FeNiCr 涂层中,可显著提高微硬度. 这项研究表明B₄C作为激光覆盖MEA涂层的有希望的增强剂.

科学领域:

材料科学材料科学材料科学
金工业是金工业的一个方面.
表面工程是什么?表面工程是什么?

背景情况:

中等合金 (MEAs) 为高级应用提供可调节的性能.
激光覆盖是沉积保护涂层的关键技术.
碳化物 (B₄C) 以其硬度和强化金属矩阵的潜力而闻名.

研究的目的:

研究B4C添加剂对激光涂层FeNiCr MEA涂层的微观结构和机械性能的影响.
评估B₄C作为这些涂料中强化剂的潜力.
描述FeNiCr矩阵内的B₄C的相结构和结合.

主要方法:

使用脉冲激光覆盖,将FeNiCr-B₄C涂层 (0,1,3重%B₄C) 沉积在AISI 1040钢上.
扫描电子显微镜 (SEM) 分析了涂层的微观结构和厚度.
通过X射线衍射 (XRD) 和传输电子显微镜 (TEM) 确定了相组合和结构.
拉曼光谱证实了B4C的存在.
微硬度和柔性测试评估了机械性能.

主要成果:

涂层表现出均的厚度 (400 ± 20 μm) 与一个狭窄的基板过渡区.
XRD证实了单面中心立方体 (FCC) γ-阶段,而TEM显示了3 wt.% B₄C涂层中的两相FCC结构.
拉曼光谱通过特征性的C-B-C拉伸和无形碳峰值证实了B₄C的存在.
微硬度增加了16% (1重量%B₄C) 和38% (3重量%B₄C).
柔性略微下降了4% (1重%B₄C) 和10% (3重%B₄C) 的情况.

结论:

B4C添加是加强激光覆盖的FeNiCr MEA涂层的有效策略.
增强的微硬度伴随着柔性略有降低.
该研究强调了针对耐磨应用的定制MEA-B4C复合材料的潜力.

关键词:

B4C B4C 的意思是拉曼光谱法拉曼光谱法拉曼光谱法碳化物碳化物激光覆盖激光覆盖中等的合金合金.微硬度微硬度微硬度微观结构的特征描述.

更多相关视频

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron

Published on: June 9, 2016

Author Spotlight: Enhancing Fiber Composite Laminate Quality with the Wet Hand Lay-Up/Vacuum Bag Process

Author Spotlight: Enhancing Fiber Composite Laminate Quality with the Wet Hand Lay-Up/Vacuum Bag Process

Published on: June 30, 2023

相关概念视频

Fiber Reinforced Concrete

Fiber Reinforced Concrete

Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...

Mechanical Characteristics of Steel

Mechanical Characteristics of Steel

The mechanical characteristics of steel are assessed through various tests that evaluate its strength, toughness, and flexibility. These tests include tension, torsion, impact, bending, and hardness assessments, each providing crucial information about steel's suitability for specific applications.
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used to...