«Equipment and technologies for oil and gas complex»

Instrumental indentation when diagnosing a duplex steel collector

UDC: 338.45:662.6
DOI: -

Authors:

¹ National University of Oil and Gas "Gubkin University", Moscow, Russia
² Opton Engineering, Moscow, Russia
³ Merzhanov Institute of Structural Macrokinetics and Materials, Russian Academy of Sciences, Chernogolovka, Russia

Keywords: duplex steel, austenite, ferrite, indentation, indenter, mechanical properties, strength, stress-strain state

Annotation:

The authors of the article consider the current issues of monitoring the mechanical characteristics of duplex steel when diagnosing oil and gas equipment. The possibility of using co-ercimetry to assess the stress-strain state in the contact zone of the indenter with the tested sample during instrumental indentation is indicated. The specific features of coercive force changes in the process of measuring the mechanical characteristics of duplex steel using an instrumental indentation system are presented. The results obtained are comparable with the results obtained in the destructive testing laboratory using testing machines.

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