Van Hung Dao, Hee Soo Yun, Sang Koo Jeon, Jaeyeong Park, Seung Hoon Nahm
{"title":"镍基单晶高温合金热疲劳开裂行为的温度依赖性","authors":"Van Hung Dao, Hee Soo Yun, Sang Koo Jeon, Jaeyeong Park, Seung Hoon Nahm","doi":"10.1007/s12540-024-01887-3","DOIUrl":null,"url":null,"abstract":"<div><p>The fatigue behavior of a second-generation single-crystal nickel-based superalloy was examined under thermomechanical fatigue (TMF) at temperatures ranging from 450 to 850 °C, using strain-controlled conditions. The study aimed to analyze cyclic deformation behavior, investigate dominant damage mechanisms, and assess cracking behavior in both in-phase (IP) and out-of-phase (OP) tests. Under IP TMF conditions, the primary damage manifestation was primarily attributed to creep-fatigue interactions, collectively leading to a reduced lifetime. Conversely, in the OP tests, the damage predominantly stemmed from the oxidation-fatigue mechanisms occurring at high mechanical strains. Creep-induced damage emerges as an additional factor at lower mechanical strains, rendering the material more susceptible to crack propagation. Consequently, the fatigue life exhibited considerable reduction and tended to reverse compared to the IP case. Further tests were conducted across various maximum temperature cycling ranges of 950 and 1038 °C to explore the effect of temperature on IP TMF lifespans. Increased mobility of dislocations and oxidation penetration were found to further reduce the fatigue life of ruptured specimens, with this effect believed to be proportional to the temperature variation in the IP TMF test. The microstructures and damage evolution were examined to provide insights into the changes in fatigue life.</p><h3>Graphic Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 8","pages":"2297 - 2314"},"PeriodicalIF":4.0000,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Temperature Dependence on Cracking Behavior in Thermomechanical Fatigue of Nickel-Based Single-Crystal Superalloy\",\"authors\":\"Van Hung Dao, Hee Soo Yun, Sang Koo Jeon, Jaeyeong Park, Seung Hoon Nahm\",\"doi\":\"10.1007/s12540-024-01887-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The fatigue behavior of a second-generation single-crystal nickel-based superalloy was examined under thermomechanical fatigue (TMF) at temperatures ranging from 450 to 850 °C, using strain-controlled conditions. The study aimed to analyze cyclic deformation behavior, investigate dominant damage mechanisms, and assess cracking behavior in both in-phase (IP) and out-of-phase (OP) tests. Under IP TMF conditions, the primary damage manifestation was primarily attributed to creep-fatigue interactions, collectively leading to a reduced lifetime. Conversely, in the OP tests, the damage predominantly stemmed from the oxidation-fatigue mechanisms occurring at high mechanical strains. Creep-induced damage emerges as an additional factor at lower mechanical strains, rendering the material more susceptible to crack propagation. Consequently, the fatigue life exhibited considerable reduction and tended to reverse compared to the IP case. Further tests were conducted across various maximum temperature cycling ranges of 950 and 1038 °C to explore the effect of temperature on IP TMF lifespans. Increased mobility of dislocations and oxidation penetration were found to further reduce the fatigue life of ruptured specimens, with this effect believed to be proportional to the temperature variation in the IP TMF test. The microstructures and damage evolution were examined to provide insights into the changes in fatigue life.</p><h3>Graphic Abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":703,\"journal\":{\"name\":\"Metals and Materials International\",\"volume\":\"31 8\",\"pages\":\"2297 - 2314\"},\"PeriodicalIF\":4.0000,\"publicationDate\":\"2025-02-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Metals and Materials International\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12540-024-01887-3\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metals and Materials International","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12540-024-01887-3","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Temperature Dependence on Cracking Behavior in Thermomechanical Fatigue of Nickel-Based Single-Crystal Superalloy
The fatigue behavior of a second-generation single-crystal nickel-based superalloy was examined under thermomechanical fatigue (TMF) at temperatures ranging from 450 to 850 °C, using strain-controlled conditions. The study aimed to analyze cyclic deformation behavior, investigate dominant damage mechanisms, and assess cracking behavior in both in-phase (IP) and out-of-phase (OP) tests. Under IP TMF conditions, the primary damage manifestation was primarily attributed to creep-fatigue interactions, collectively leading to a reduced lifetime. Conversely, in the OP tests, the damage predominantly stemmed from the oxidation-fatigue mechanisms occurring at high mechanical strains. Creep-induced damage emerges as an additional factor at lower mechanical strains, rendering the material more susceptible to crack propagation. Consequently, the fatigue life exhibited considerable reduction and tended to reverse compared to the IP case. Further tests were conducted across various maximum temperature cycling ranges of 950 and 1038 °C to explore the effect of temperature on IP TMF lifespans. Increased mobility of dislocations and oxidation penetration were found to further reduce the fatigue life of ruptured specimens, with this effect believed to be proportional to the temperature variation in the IP TMF test. The microstructures and damage evolution were examined to provide insights into the changes in fatigue life.
期刊介绍：
Metals and Materials International publishes original papers and occasional critical reviews on all aspects of research and technology in materials engineering: physical metallurgy, materials science, and processing of metals and other materials. Emphasis is placed on those aspects of the science of materials that are concerned with the relationships among the processing, structure and properties (mechanical, chemical, electrical, electrochemical, magnetic and optical) of materials. Aspects of processing include the melting, casting, and fabrication with the thermodynamics, kinetics and modeling.
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