Matrix replica-based assessment of the microstructure of primary steam piping elbows after long-term operation

Autor:	Piotr Matusiewicz, Paweł Malinowski, Leopold Michał Barwicki, Justyna Kasińska
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	13HMF steel piping elbows damage processes scanning electron microscopy (SEM) phase
Zdroj:	Metalurgija Volume 61 Issue 3-4 BPP_AGH
ISSN:	1334-2576 0543-5846
Popis:	The degree of degradation of ferritic-pearlitic steels is assessed by describing the size, dispersion and distribution of carbides along the grain boundaries, grain growth and the occurrence of microcracks. The article reports the results of the microstructural assessment of primary steam pipeline elbows made of 13HMF steel. Digital image analysis of matrix replicas was performed. It included the classification of microstructures in terms of pearlite/bainite change classes (fragmentation of cementite plates, spheroidization, coagulation) and the evaluation of carbide precipitation processes and damage processes (presence of isolated oriented creep pores and microcracks). The perlite/ bainite areas were found to disappear completely after long-term operation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::ec61666b17579495c473c9eb58aaea8c https://hrcak.srce.hr/274059 Zobrazit plný text záznamu Plný text ve formátu PDF