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用可实行单点连续加载卸载的涂层压入仪,测定热喷涂涂层与基体之间界面开裂的临界载荷Pw.此值可反映结合强度.与现有的压入法比较.用涂层压入仪只需一次压入就可测定Pw值.此方法比粘结拉伸法简捷,适合评价高结合强度的涂层.
With a single point continuous loading and unloading of the coating press into the instrument to determine the interface between the thermal spray coating and the substrate cracking critical load Pw. This value reflects the bonding strength compared with the existing press-in. With the coating Pressed indentation instrument can be measured only once Pw value. This method is simpler than the bonding tension method, suitable for evaluating the high bond strength of the coating.