Relation between impact and fracture toughness of A-387 Gr. B welded joint
Апстракт
The influence of temperature on impact and fracture toughness values in different regions of a welded joint is analysed for low-alloyed Cr-Mo steel A-387 Gr. B, designed for high temperature applications. Standard Charpy specimens were tested on instrumented pendulum to separate total impact energy into energy for initiation and propagation energy for base metal (BM), weld metal (WM) and heat-affected-zone (HAZ). Standard three point bending (3BP) specimens with crack tip located at different regions of a joint (BM, WM, HAZ), were used for fracture toughness testing. Experiments were performed both at the room temperature and at design working temperature, 540 degrees C, which is the focus of this paper, to evaluate temperature effect on both notch and crack resistance for all different regions in a welded joint. Moreover, the relation between crack initiation energy and fracture toughness is established, purely on empirical base.
Кључне речи:
welded joint / impact toughness / fracture toughness / crack / crack propagation energy / crack initiation energyИзвор:
Procedia Structural Integrity - 25th International Conference on Fracture and Structural Integrity, 2019, 18, 903-907Издавач:
- Elsevier Science Bv, Amsterdam
Финансирање / пројекти:
- Динамика хибридних система сложених структура. Механика материјала (RS-MESTD-Basic Research (BR or ON)-174001)
DOI: 10.1016/j.prostr.2019.08.241
ISSN: 2452-3216
WoS: 000504238000106
Scopus: 2-s2.0-85074772234
Институција/група
Inovacioni centarTY - CONF AU - Camagić, Ivica AU - Sedmak, Aleksandar AU - Sedmak, Simon AU - Burzić, Zijah PY - 2019 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3006 AB - The influence of temperature on impact and fracture toughness values in different regions of a welded joint is analysed for low-alloyed Cr-Mo steel A-387 Gr. B, designed for high temperature applications. Standard Charpy specimens were tested on instrumented pendulum to separate total impact energy into energy for initiation and propagation energy for base metal (BM), weld metal (WM) and heat-affected-zone (HAZ). Standard three point bending (3BP) specimens with crack tip located at different regions of a joint (BM, WM, HAZ), were used for fracture toughness testing. Experiments were performed both at the room temperature and at design working temperature, 540 degrees C, which is the focus of this paper, to evaluate temperature effect on both notch and crack resistance for all different regions in a welded joint. Moreover, the relation between crack initiation energy and fracture toughness is established, purely on empirical base. PB - Elsevier Science Bv, Amsterdam C3 - Procedia Structural Integrity - 25th International Conference on Fracture and Structural Integrity T1 - Relation between impact and fracture toughness of A-387 Gr. B welded joint EP - 907 SP - 903 VL - 18 DO - 10.1016/j.prostr.2019.08.241 ER -
@conference{ author = "Camagić, Ivica and Sedmak, Aleksandar and Sedmak, Simon and Burzić, Zijah", year = "2019", abstract = "The influence of temperature on impact and fracture toughness values in different regions of a welded joint is analysed for low-alloyed Cr-Mo steel A-387 Gr. B, designed for high temperature applications. Standard Charpy specimens were tested on instrumented pendulum to separate total impact energy into energy for initiation and propagation energy for base metal (BM), weld metal (WM) and heat-affected-zone (HAZ). Standard three point bending (3BP) specimens with crack tip located at different regions of a joint (BM, WM, HAZ), were used for fracture toughness testing. Experiments were performed both at the room temperature and at design working temperature, 540 degrees C, which is the focus of this paper, to evaluate temperature effect on both notch and crack resistance for all different regions in a welded joint. Moreover, the relation between crack initiation energy and fracture toughness is established, purely on empirical base.", publisher = "Elsevier Science Bv, Amsterdam", journal = "Procedia Structural Integrity - 25th International Conference on Fracture and Structural Integrity", title = "Relation between impact and fracture toughness of A-387 Gr. B welded joint", pages = "907-903", volume = "18", doi = "10.1016/j.prostr.2019.08.241" }
Camagić, I., Sedmak, A., Sedmak, S.,& Burzić, Z.. (2019). Relation between impact and fracture toughness of A-387 Gr. B welded joint. in Procedia Structural Integrity - 25th International Conference on Fracture and Structural Integrity Elsevier Science Bv, Amsterdam., 18, 903-907. https://doi.org/10.1016/j.prostr.2019.08.241
Camagić I, Sedmak A, Sedmak S, Burzić Z. Relation between impact and fracture toughness of A-387 Gr. B welded joint. in Procedia Structural Integrity - 25th International Conference on Fracture and Structural Integrity. 2019;18:903-907. doi:10.1016/j.prostr.2019.08.241 .
Camagić, Ivica, Sedmak, Aleksandar, Sedmak, Simon, Burzić, Zijah, "Relation between impact and fracture toughness of A-387 Gr. B welded joint" in Procedia Structural Integrity - 25th International Conference on Fracture and Structural Integrity, 18 (2019):903-907, https://doi.org/10.1016/j.prostr.2019.08.241 . .