Effects of Al-Si coating quantity on the wear behavior of 22MnB5 steel in hot stamping

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2026-02-01 Epub Date: 2025-12-13 DOI:10.1016/j.wear.2025.206471

Hee Geon Lee , Min-Ki Ji , Hyun-Hak Kang , Hyun-sung Son , Tea-Sung Jun

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Abstract

This study investigates the wear behavior of Al-Si-coated 22MnB5 steel, with respect to coating quantity, during a simulated hot-stamping process. A strip-drawing tribometer was used to replicate the process. Specimens were prepared with three distinct coating quantities (AS40, AS80, and AS140) and were subjected to an identical heat treatment at 900 °C for 5 min. Under the specific contact pressure and sliding velocity conditions tested in this study, tribological tests revealed that specimens with higher coating quantities exhibited lower friction coefficients and increased tool weight. In contrast, specimens with lower coating quantities exhibited the opposite trend. The level of oxidation varied inversely with coating quantity, with lower coating quantities promoting greater iron oxide formation. As the coating quantity increased, the amount of residual aluminum (Al) available for alloying also increased. This variation in residual Al was a critical factor that dictated the reaction pathways of the diffused iron (Fe), which either formed intermetallic compounds or oxides. Our findings demonstrate that variations in the Al-Si coating quantity, followed by heat treatment, significantly influence the friction behavior, tool wear, Fe reaction pathways, and oxidation characteristics during the hot-stamping process.

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Al-Si涂层量对22MnB5钢热冲压磨损性能的影响

本文研究了al - si涂层22MnB5钢在模拟热冲压过程中的磨损行为，以及涂层量。用拉丝摩擦计复制了这一过程。用三种不同的涂层量（AS40、AS80和AS140）制备样品，并在900°C下进行相同的热处理5分钟。在本研究测试的比接触压力和滑动速度条件下，摩擦学测试表明，涂层量越大，试样的摩擦系数越低，刀具重量越大。相比之下，较低涂层量的试样表现出相反的趋势。氧化水平与涂敷量成反比，涂敷量越低，氧化铁生成越多。随着涂层量的增加，可合金化的残余铝（Al）量也增加。残余Al的这种变化是决定扩散铁（Fe）反应途径的关键因素，Fe要么形成金属间化合物，要么形成氧化物。我们的研究结果表明，Al-Si涂层量的变化以及热处理对热冲压过程中的摩擦行为、刀具磨损、铁反应路径和氧化特性有显著影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.