DBN压头摩擦处理过程中载荷对NiCrBSi-Cr3C2激光熔覆层表面光洁度的影响

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019 Pub Date : 2019-11-19 DOI:10.1063/1.5132212

N. Soboleva, A. Makarov, P. Skorynina, E. Nikolaeva, I. Malygina

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引用次数: 1

摘要

研究了高密度立方氮化硼压头在空气中摩擦处理后NiCrBSi-Cr3C2复合激光熔覆涂层在350、500和700 N压头载荷下的硬度和表面光洁度，并与磨削后的表面特性进行了比较。摩擦处理在所有情况下都会导致表面硬化。350-500 N的摩擦处理能保证表面粗糙度参数最低，有利于大的硬质碳化物表面的保存，而700 N的摩擦处理则会破坏涂层表面的Cr3C2碳化物。研究了高密度立方氮化硼压头在空气中摩擦处理后NiCrBSi-Cr3C2复合激光熔覆涂层在350、500和700 N压头载荷下的硬度和表面光洁度，并与磨削后的表面特性进行了比较。摩擦处理在所有情况下都会导致表面硬化。350-500 N的摩擦处理能保证表面粗糙度参数最低，有利于大的硬质碳化物表面的保存，而700 N的摩擦处理则会破坏涂层表面的Cr3C2碳化物。

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The effect of load during frictional treatment with a DBN indenter on the surface finish of the NiCrBSi–Cr3C2 laser clad coating

The authors consider the hardness and surface finish of the composite NiCrBSi–Cr3C2 laser clad coating after frictional treatment with a dense cubic boron nitride (DBN) indenter in air at loads on the indenter of 350, 500 and 700 N in comparison with the surface characteristics after grinding. Frictional treatment in all cases leads to surface hardening. Frictional treatment at loads of 350–500 N ensures the formation of surfaces with the lowest roughness parameters and contributes to the preservation on the surface of large hard chromium carbides, while frictional treatment at a load of 700 N causes the destruction of Cr3C2 carbides on the surface of the coating.The authors consider the hardness and surface finish of the composite NiCrBSi–Cr3C2 laser clad coating after frictional treatment with a dense cubic boron nitride (DBN) indenter in air at loads on the indenter of 350, 500 and 700 N in comparison with the surface characteristics after grinding. Frictional treatment in all cases leads to surface hardening. Frictional treatment at loads of 350–500 N ensures the formation of surfaces with the lowest roughness parameters and contributes to the preservation on the surface of large hard chromium carbides, while frictional treatment at a load of 700 N causes the destruction of Cr3C2 carbides on the surface of the coating.

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PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019

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