Mechanical properties of Super 304H steel after long-term ageing at 650 and 700°C

Bibliographic Details
Title: Mechanical properties of Super 304H steel after long-term ageing at 650 and 700°C
Authors: Adam Zieliński, Marek Sroka, Hanna Purzyńska, Frantisek Novy
Source: Bulletin of the Polish Academy of Sciences: Technical Sciences, Vol 71, Iss 2 (2023)
Publisher Information: Polish Academy of Sciences, 2023.
Publication Year: 2023
Collection: LCC:Technology
LCC:Technology (General)
Subject Terms: super 304h steel, mechanical properties, ageing, Technology, Technology (General), T1-995
More Details: The paper shows the degradation process of the modern austenitic Super 304H (X10CrNiCuNb18-9-3) steel which was subjected to long-term aging for up to 50,000 h at 650 and 700°C. The investigations include microstructure examination (SEM), identification and analysis of the precipitation process, and mechanical properties tests. The Super 304H steel has a structure characteristic of austenitic steels with visible annealing twins and single primary NbX precipitates. Long-term aging in the steel leads to numerous precipitation processes of M23C6, MX carbides, σ phase, Z phase, and -Cu phase. Precipitation processes lead to a decrease in plastic properties and impact energy as well as alloy over aging. Yield strength and tensile strength values after 50,000 h of aging were similar to those as delivered. The yield and tensile strength value strongly depend on the applied aging temperature.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2300-1917
Relation: https://journals.pan.pl/Content/126610/PDF/BPASTS_2023_71_2_3322.pdf; https://doaj.org/toc/2300-1917
DOI: 10.24425/bpasts.2023.144612
Access URL: https://doaj.org/article/f7f85e0edc104b6a9862b31e7b451a0a
Accession Number: edsdoj.f7f85e0edc104b6a9862b31e7b451a0a
Database: Directory of Open Access Journals
More Details
ISSN:23001917
DOI:10.24425/bpasts.2023.144612
Published in:Bulletin of the Polish Academy of Sciences: Technical Sciences
Language:English