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首页> 外文期刊>Materials Science and Engineering >Microstructures generated in AISI 316L stainless steel by Vickers and Berkovich indentations
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Microstructures generated in AISI 316L stainless steel by Vickers and Berkovich indentations

机译：AISI 316L不锈钢生产的微观结构由维克斯和Berkovich缩进

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摘要

The work aimes for studying the specifics of deformation of AISI 316L stainless austenitic steel under the conditions of micro severe plastic deformation (mSPD) created locally at the submicro and micro levels using Berkovich and Vickers indenters. The deformation was carried out by instrumented (depth-sensing), quasi-static indentation and microscratching methods in the load interval P = 10-2000 mN. Studies have shown that various mSPD methods (submicro-, microindentation and microscratching) create similar patterns of plastic deformation in thin surface layers of the material. The stick-slip nature of the scratching process has been demonstrated. It has been established that in the region of loads below 50 mN, the intragranular deformation mechanism has the main contribution to the formation of indentations, while at loads above 50 mN, intragranular and intergranular mechanisms participate in the process, and the role of the latter becomes greater with P increase. Load growth leads to a decrease in hardness under submicro-, microindentation and microscratching for all applied mSPD methods. The type of mSPD method, as well as the type of indenter and the magnitude of the applied load are the factors affecting the mechanical characteristics that should be taken into account depending on the practical purpose of the AISI 316L austenitic steel products.
机译：使用Berkovich和Vickers Indenters在亚癫痫和微观局部在亚癫痫和微观局部产生的微观严重塑性变形（MSPD）条件下研究AISI 316L不锈钢奥氏体钢变形细节的作品。通过仪器（深度感测），载荷间隔P = 10-2000mN的仪表，准静态压痕和微旋转方法进行变形。研究表明，各种MSPD方法（亚微米，微观化和微旋转）在材料的薄表面层中产生类似的塑性变形模式。已经证明了刮擦过程的粘滑性质。已经确定，在50毫升的载荷区域，腔内变形机制具有对压痕形成的主要贡献，而在50毫升的载荷上，内部和晶间机制参与过程，以及后者的作用以及后者的作用P增加变得更大。负荷增长导致所有施加的MSPD方法下的亚微米，微观化和微旋转下的硬度降低。 MSPD方法的类型，以及施加载荷的类型的类型是影响应考虑到应考虑的机械特性的因素，这取决于AISI 316L奥氏体钢产品的实际目的。

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