Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ
Abstract
Numerous structural components made of high strength low-alloyed steels are often exposed to low-cycle fatigue loading during their exploitation life. In order to study the fatigue behavior of one grade of structural steels produced in Yugoslavia during the eighties of the last century, a push-pull constant amplitude strain-controlled fatigue tests were conducted at room temperatures. This paper analyses behavior of two different materials, parent steel (PM) and its coarse-grained (CG) simulated heat-affected zone (SHAZ) exposed to the action of low-cycle fatigue (LCF) loading performed in the range from 1 to 10(4) cycles. LCF tests were conducted at strain ratio R = -1 at strain amplitude range from 0.3% to 0.8%. The materials' Coffin-Manson parameters appearing in the strain-life and cyclic stress-strain curves were calculated. Fracture surface analysis of both materials was done. The results showed that plasticity under dynamic load conditions is satisfactory for both materials whic...h give them good resistance to crack initiation and propagation.
Keywords:
Simulated weld CGHAZ / Microstructure / Low-cycle fatigue / High strength low-alloyed steels / Cyclic testSource:
Engineering Failure Analysis, 2019, 104, 1094-1106Publisher:
- Pergamon-Elsevier Science Ltd, Oxford
Funding / projects:
- Pressure equipment integrity under simultaneous effect of fatigue loading and temperature (RS-35011)
DOI: 10.1016/j.engfailanal.2019.06.017
ISSN: 1350-6307
WoS: 000484364400086
Scopus: 2-s2.0-85068253612
Collections
Institution/Community
Institut za ispitivanje materijalaTY - JOUR AU - Aleksić, Vujadin AU - Milović, Ljubica AU - Blačić, Ivo AU - Vuherer, Tomaž AU - Bulatović, Srđan PY - 2019 UR - http://rims.institutims.rs/handle/123456789/354 AB - Numerous structural components made of high strength low-alloyed steels are often exposed to low-cycle fatigue loading during their exploitation life. In order to study the fatigue behavior of one grade of structural steels produced in Yugoslavia during the eighties of the last century, a push-pull constant amplitude strain-controlled fatigue tests were conducted at room temperatures. This paper analyses behavior of two different materials, parent steel (PM) and its coarse-grained (CG) simulated heat-affected zone (SHAZ) exposed to the action of low-cycle fatigue (LCF) loading performed in the range from 1 to 10(4) cycles. LCF tests were conducted at strain ratio R = -1 at strain amplitude range from 0.3% to 0.8%. The materials' Coffin-Manson parameters appearing in the strain-life and cyclic stress-strain curves were calculated. Fracture surface analysis of both materials was done. The results showed that plasticity under dynamic load conditions is satisfactory for both materials which give them good resistance to crack initiation and propagation. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Engineering Failure Analysis T1 - Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ EP - 1106 SP - 1094 VL - 104 DO - 10.1016/j.engfailanal.2019.06.017 ER -
@article{ author = "Aleksić, Vujadin and Milović, Ljubica and Blačić, Ivo and Vuherer, Tomaž and Bulatović, Srđan", year = "2019", abstract = "Numerous structural components made of high strength low-alloyed steels are often exposed to low-cycle fatigue loading during their exploitation life. In order to study the fatigue behavior of one grade of structural steels produced in Yugoslavia during the eighties of the last century, a push-pull constant amplitude strain-controlled fatigue tests were conducted at room temperatures. This paper analyses behavior of two different materials, parent steel (PM) and its coarse-grained (CG) simulated heat-affected zone (SHAZ) exposed to the action of low-cycle fatigue (LCF) loading performed in the range from 1 to 10(4) cycles. LCF tests were conducted at strain ratio R = -1 at strain amplitude range from 0.3% to 0.8%. The materials' Coffin-Manson parameters appearing in the strain-life and cyclic stress-strain curves were calculated. Fracture surface analysis of both materials was done. The results showed that plasticity under dynamic load conditions is satisfactory for both materials which give them good resistance to crack initiation and propagation.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Engineering Failure Analysis", title = "Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ", pages = "1106-1094", volume = "104", doi = "10.1016/j.engfailanal.2019.06.017" }
Aleksić, V., Milović, L., Blačić, I., Vuherer, T.,& Bulatović, S.. (2019). Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ. in Engineering Failure Analysis Pergamon-Elsevier Science Ltd, Oxford., 104, 1094-1106. https://doi.org/10.1016/j.engfailanal.2019.06.017
Aleksić V, Milović L, Blačić I, Vuherer T, Bulatović S. Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ. in Engineering Failure Analysis. 2019;104:1094-1106. doi:10.1016/j.engfailanal.2019.06.017 .
Aleksić, Vujadin, Milović, Ljubica, Blačić, Ivo, Vuherer, Tomaž, Bulatović, Srđan, "Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ" in Engineering Failure Analysis, 104 (2019):1094-1106, https://doi.org/10.1016/j.engfailanal.2019.06.017 . .