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The Impact of Surface Treatment and Degree of Vacuum on the Interface and Mechanical Properties of Stainless Steel Clad Plate

机译：表面处理和真空度对不锈钢复合板界面和力学性能的影响

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In this study, the impact of different surface treatment and degree of vacuum on the interface and mechanical properties of 304/Q345 stainless steel clad plate was investigated. The study indicated that more continuous or aggregated Al2O3 and Si-Mn composite oxides were formed at the interface after brush grinding. However, less inclusions such as Al2O3, MnS and Ca-Mg-Al-Si composite oxides were formed at the interface after pickling treatment. For the vacuum degrees of 10−2 Pa, 1 Pa and 105 Pa, the oxidation reaction became more intense with the decrease in vacuum degree. The interface inclusions were gradually changed from Al2O3 and Si-Mn complex oxides to oxide scale and MnCr2O4 spinel oxide. The interfacial bonding strength of stainless steel clad plate was improved with the increase in degree of vacuum. The bonding strength was 55 MPa at vacuum of 105 Pa, but it was 484 MPa at vacuum of 10−2 Pa, which is far greater than that of the national standard, and an excellent performance was obtained.
机译：在这项研究中，研究了不同的表面处理和真空度对304 / Q345不锈钢复合板的界面和力学性能的影响。研究表明，刷磨后在界面处形成了更多连续或聚集的Al2O3和Si-Mn复合氧化物。然而，酸洗处理后的界面处形成的夹杂物较少，如Al2O3，MnS和Ca-Mg-Al-Si复合氧化物。真空度为10 -2 Pa，1Pa和105Pa时，随着真空度的降低，氧化反应变得更加强烈。界面夹杂物逐渐从Al2O3和Si-Mn复合氧化物变为氧化皮和MnCr2O4尖晶石氧化物。随着真空度的增加，不锈钢复合板的界面结合强度得到提高。真空度为10 5 Pa时的粘结强度为55 MPa，而真空度为10 -2 Pa时的粘结强度为484 MPa，远高于国家标准。 ，并获得了优异的性能。

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