The Effect of Material Heterogeneity and Temperature on Impact Toughness and Fracture Resistance of SA-387 Gr. 91 Welded Joints
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 temper...
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MDPI AG
2022-03-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/5/1854 |
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| author | Milivoje Jovanović Ivica Čamagić Simon Sedmak Aleksandar Sedmak Zijah Burzić |
| author_facet | Milivoje Jovanović Ivica Čamagić Simon Sedmak Aleksandar Sedmak Zijah Burzić |
| author_sort | Milivoje Jovanović |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-09T20:32:06Z |
| format | Article |
| id | doaj.art-7ab9ad6e5f5f4e96ace4311a24b9ad22 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T20:32:06Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-7ab9ad6e5f5f4e96ace4311a24b9ad222023-11-23T23:19:54ZengMDPI AGMaterials1996-19442022-03-01155185410.3390/ma15051854The Effect of Material Heterogeneity and Temperature on Impact Toughness and Fracture Resistance of SA-387 Gr. 91 Welded JointsMilivoje Jovanović0Ivica Čamagić1Simon Sedmak2Aleksandar Sedmak3Zijah Burzić4Department for Mechanics, Faculty of Technical Sciences, University of Priština Temporarily Settled in Kosovska Mitrovica, 38220 Kosovska Mitrovica, SerbiaDepartment for Mechanics, Faculty of Technical Sciences, University of Priština Temporarily Settled in Kosovska Mitrovica, 38220 Kosovska Mitrovica, SerbiaInnovation Center of the Faculty of Mechanical Engineering, 11000 Belgrade, SerbiaFaculty of Mechanical Engineering, University of Belgrade, 11000 Belgrade, SerbiaMilitary Technical Institute, 11000 Belgrade, SerbiaThis 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.https://www.mdpi.com/1996-1944/15/5/1854welded jointcrack-initiation energycrack-propagation energyfracture toughness |
| spellingShingle | Milivoje Jovanović Ivica Čamagić Simon Sedmak Aleksandar Sedmak Zijah Burzić The Effect of Material Heterogeneity and Temperature on Impact Toughness and Fracture Resistance of SA-387 Gr. 91 Welded Joints Materials welded joint crack-initiation energy crack-propagation energy fracture toughness |
| title | The Effect of Material Heterogeneity and Temperature on Impact Toughness and Fracture Resistance of SA-387 Gr. 91 Welded Joints |
| title_full | The Effect of Material Heterogeneity and Temperature on Impact Toughness and Fracture Resistance of SA-387 Gr. 91 Welded Joints |
| title_fullStr | The Effect of Material Heterogeneity and Temperature on Impact Toughness and Fracture Resistance of SA-387 Gr. 91 Welded Joints |
| title_full_unstemmed | The Effect of Material Heterogeneity and Temperature on Impact Toughness and Fracture Resistance of SA-387 Gr. 91 Welded Joints |
| title_short | The Effect of Material Heterogeneity and Temperature on Impact Toughness and Fracture Resistance of SA-387 Gr. 91 Welded Joints |
| title_sort | effect of material heterogeneity and temperature on impact toughness and fracture resistance of sa 387 gr 91 welded joints |
| topic | welded joint crack-initiation energy crack-propagation energy fracture toughness |
| url | https://www.mdpi.com/1996-1944/15/5/1854 |
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