Kovács Péter, Körömi Benjámin, Weltsch Zoltán, Berczeli Miklós
Doctoral School of Multidisciplinary Engineering Sciences, Szechenyi Istvan University, H-9000 Gyor, Hungary.
Department of Innovative Vehicles and Materials, GAMF Faculty of Engineering and Computer Science, John von Neumann University, H-6000 Kecskemet, Hungary.
Materials (Basel). 2023 Dec 15;16(24):7663. doi: 10.3390/ma16247663.
This study explores the tensile strength of adhesive joints in steel, focusing on the influence of heat treatment and diverse surface modifications. Results indicate a notable relationship between annealing temperature and tensile strength, with the most favorable outcomes identified at 90 min and 165 °C. Particularly, surfaces treated through turning, sandblasting, and plasma treatment (type C) consistently outperformed other methods. A standout revelation emerged from the turned, sandblasted, and plasma-treated surface (C), showcasing an exceptional tensile strength of 69.06 MPa. Load-holding tests underscored its resilience under diverse load conditions. Surface analyses, including roughness measurements, wetting characteristics, and Scanning Electron Microscope imaging, provided valuable insights into structural transformations induced by different treatments. Chemical composition examinations unveiled significant alterations post-plasma treatment, impacting surface chemistry and contributing to an outstanding tensile strength of 67.63 MPa. In essence, this research offers a glimpse into the nuanced factors influencing adhesive joint strength in steel. The turned, sandblasted, and plasma-treated surface emerges as a promising avenue, sparking further curiosity into the underlying mechanisms propelling superior tensile strength in adhesive joints.
本研究探讨了钢中粘结接头的拉伸强度，重点关注热处理和各种表面改性的影响。结果表明，退火温度与拉伸强度之间存在显著关系，在90分钟和165°C时取得了最有利的结果。特别是，通过车削、喷砂和等离子处理（C型）处理的表面始终优于其他方法。车削、喷砂和等离子处理的表面（C）有一个突出的发现，其拉伸强度高达69.06MPa。负载保持测试强调了其在不同负载条件下的弹性。表面分析，包括粗糙度测量、润湿性和扫描电子显微镜成像，为不同处理引起的结构转变提供了有价值的见解。化学成分检查揭示了等离子处理后表面化学成分的显著变化，这影响了表面化学性质，并促成了67.63MPa的出色拉伸强度。本质上，本研究让我们得以了解影响钢中粘结接头强度的细微因素。车削、喷砂和等离子处理的表面成为一个有前景的研究方向，激发了人们对粘结接头中推动卓越拉伸强度的潜在机制的进一步好奇。
