Dry sliding wear behavior of as-cast ZE41A magnesium alloy
Dry sliding wear behavior of as-cast ZE41A magnesium alloy
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DOI：
10.1016/j.matdes.2009.10.054
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发表时间：
2010-04
影响因子：
8.4
通讯作者：
S. Selvan;S. Ramanathan
中科院分区：
文献类型：
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作者：
S. Selvan;S. Ramanathan
本文对铸态ZE41A镁合金干滑动磨损行为进行了研究。实验采用针盘式磨损装置，在30 ~ 150n载荷范围、0.5 ~ 2.5m/s滑动速度范围和1500m恒定滑动距离下，对EN32钢台面进行磨损试验。使用配备能谱仪（EDS）的扫描电子显微镜（SEM）对磨损表面进行微观结构研究，以确定表面的损伤类型和变形性质。确定了磨损、氧化、脱层、塑性变形和熔化等磨损机制。对试验结果数据绘制了磨损图。通过显微组织观察，利用磨损过渡图确定了轻度磨损、严重磨损和超严重磨损状态。
In present work, an attempt has been made to investigate the wear behavior of as-cast ZE41A magnesium alloy during dry sliding. The experiments were performed using pin-on-disc type wear apparatus against a EN32 steel counterface in a load range of 30–150N, sliding velocity range of 0.5–2.5m/s and at a constant sliding distance of 1500m. Microstructural investigations on the worn surfaces were undertaken using a scanning electron microscope (SEM) equipped with an energy dispersive spectrometer (EDS) for determination of type of damage and nature of distortion at the surface. Wear mechanisms such as abrasion, oxidation, delamination, plastic deformation and melting were identified. Wear maps were drawn for the test result data. Mild wear, severe wear and ultra severe wear regimes were identified using wear transition map through microstructural observations.