The Effect of Material Heterogeneity and Temperature on Impact Toughness and Fracture Resistance of SA-387 Gr. 91 Welded Joints
Abstract
This paper presents the analysis of the behavior of welded joints made of 9-12% Cr-Mo steel SA-387 Gr. 91. The successful application of this steel depends not only on the base metal's (BM) properties but even more on heat-affected-zone (HAZ) and weld metal (WM), both at room and at operating temperature. Impact testing of specimens with a notch in BM, HAZ, and WM was performed on a Charpy instrumented pendulum to enable the separation of the total energy in crack-initiation and crack-propagation energy. Fracture toughness was also determined for all three zones, applying standard procedure at both temperatures. Results are analyzed to obtain a deep insight into steel SA 387 Gr. 91's crack resistance properties at room and operating temperatures. Results are also compared with results obtained previously for A-387 Gr. B to assess the effect of an increased content of Chromium.
Keywords:
welded joint / fracture toughness / crack-propagation energy / crack-initiation energySource:
Materials, 2022, 15, 5Publisher:
- MDPI, Basel
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200105 (University of Belgrade, Faculty of Mechanical Engineering) (RS-MESTD-inst-2020-200105)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200213 (Innovation Center of the Faculty of Mechanical Engineering) (RS-MESTD-inst-2020-200213)
DOI: 10.3390/ma15051854
ISSN: 1996-1944
PubMed: 35269085
WoS: 000769102800001
Scopus: 2-s2.0-85125757875
Collections
Institution/Community
Inovacioni centarTY - JOUR AU - Jovanović, Milivoje AU - Camagić, Ivica AU - Sedmak, Simon AU - Sedmak, Aleksandar AU - Burzić, Zijah PY - 2022 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3774 AB - This paper presents the analysis of the behavior of welded joints made of 9-12% Cr-Mo steel SA-387 Gr. 91. The successful application of this steel depends not only on the base metal's (BM) properties but even more on heat-affected-zone (HAZ) and weld metal (WM), both at room and at operating temperature. Impact testing of specimens with a notch in BM, HAZ, and WM was performed on a Charpy instrumented pendulum to enable the separation of the total energy in crack-initiation and crack-propagation energy. Fracture toughness was also determined for all three zones, applying standard procedure at both temperatures. Results are analyzed to obtain a deep insight into steel SA 387 Gr. 91's crack resistance properties at room and operating temperatures. Results are also compared with results obtained previously for A-387 Gr. B to assess the effect of an increased content of Chromium. PB - MDPI, Basel T2 - Materials T1 - The Effect of Material Heterogeneity and Temperature on Impact Toughness and Fracture Resistance of SA-387 Gr. 91 Welded Joints IS - 5 VL - 15 DO - 10.3390/ma15051854 ER -
@article{ author = "Jovanović, Milivoje and Camagić, Ivica and Sedmak, Simon and Sedmak, Aleksandar and Burzić, Zijah", year = "2022", abstract = "This paper presents the analysis of the behavior of welded joints made of 9-12% Cr-Mo steel SA-387 Gr. 91. The successful application of this steel depends not only on the base metal's (BM) properties but even more on heat-affected-zone (HAZ) and weld metal (WM), both at room and at operating temperature. Impact testing of specimens with a notch in BM, HAZ, and WM was performed on a Charpy instrumented pendulum to enable the separation of the total energy in crack-initiation and crack-propagation energy. Fracture toughness was also determined for all three zones, applying standard procedure at both temperatures. Results are analyzed to obtain a deep insight into steel SA 387 Gr. 91's crack resistance properties at room and operating temperatures. Results are also compared with results obtained previously for A-387 Gr. B to assess the effect of an increased content of Chromium.", publisher = "MDPI, Basel", journal = "Materials", title = "The Effect of Material Heterogeneity and Temperature on Impact Toughness and Fracture Resistance of SA-387 Gr. 91 Welded Joints", number = "5", volume = "15", doi = "10.3390/ma15051854" }
Jovanović, M., Camagić, I., Sedmak, S., Sedmak, A.,& Burzić, Z.. (2022). The Effect of Material Heterogeneity and Temperature on Impact Toughness and Fracture Resistance of SA-387 Gr. 91 Welded Joints. in Materials MDPI, Basel., 15(5). https://doi.org/10.3390/ma15051854
Jovanović M, Camagić I, Sedmak S, Sedmak A, Burzić Z. The Effect of Material Heterogeneity and Temperature on Impact Toughness and Fracture Resistance of SA-387 Gr. 91 Welded Joints. in Materials. 2022;15(5). doi:10.3390/ma15051854 .
Jovanović, Milivoje, Camagić, Ivica, Sedmak, Simon, Sedmak, Aleksandar, Burzić, Zijah, "The Effect of Material Heterogeneity and Temperature on Impact Toughness and Fracture Resistance of SA-387 Gr. 91 Welded Joints" in Materials, 15, no. 5 (2022), https://doi.org/10.3390/ma15051854 . .