Effect of Nickel Contents on Fatigue Crack Growth Rate and Fracture Toughness for Nickel Alloy Steels
In terms of steel alloying elements, generally, nickel is used as an austenite stabilizing element to increase the toughness of steel. The low temperature materials, such as nickel alloy steels with a nickel content of 3.5% to 9%, stainless steel and Invar, show excellent toughness at low (173 K) an...
| 發表在: | Metals |
|---|---|
| Main Authors: | , , , |
| 格式: | Article |
| 語言: | 英语 |
| 出版: |
MDPI AG
2022-01-01
|
| 主題: | |
| 在線閱讀: | https://www.mdpi.com/2075-4701/12/2/173 |
| _version_ | 1850756293385519104 |
|---|---|
| author | Jeong Yeol Park Byoung Koo Kim Dae Geun Nam Myung Hyun Kim |
| author_facet | Jeong Yeol Park Byoung Koo Kim Dae Geun Nam Myung Hyun Kim |
| author_sort | Jeong Yeol Park |
| collection | DOAJ |
| container_title | Metals |
| description | In terms of steel alloying elements, generally, nickel is used as an austenite stabilizing element to increase the toughness of steel. The low temperature materials, such as nickel alloy steels with a nickel content of 3.5% to 9%, stainless steel and Invar, show excellent toughness at low (173 K) and cryogenic (108 K) temperatures. In particular, in the shipbuilding industry, it is mainly used for liquefied ethane and Liquefied Natural Gas (LNG) carriers, and research on low-temperature steels are attracting attention again as regulations on environmental issues are strengthened in recent years. Therefore, in this study, fatigue and fracture performances of nickel alloy steel containing 9% or less among nickel alloy steels are evaluated. Moreover, we assess the Fatigue Ductile to Brittle Transition (FDBT) of nickel alloy steels based on crack tip opening displacement (CTOD). In order to discuss the fatigue and fracture performances of nickel alloy steels, microstructure analysis carried out. As a result, CTOD and Fatigue Crack Growth Rate (FCGR) of nickel alloy steels increases as nickel contents increase. In addition, FDBT of 9% nickel alloy steel is the lowest compared to other nickel alloy steels. |
| format | Article |
| id | doaj-art-95ec127dd67341ac8f2caf538e2854fa |
| institution | Directory of Open Access Journals |
| issn | 2075-4701 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| spelling | doaj-art-95ec127dd67341ac8f2caf538e2854fa2025-08-19T22:35:26ZengMDPI AGMetals2075-47012022-01-0112217310.3390/met12020173Effect of Nickel Contents on Fatigue Crack Growth Rate and Fracture Toughness for Nickel Alloy SteelsJeong Yeol Park0Byoung Koo Kim1Dae Geun Nam2Myung Hyun Kim3Energy Component & Material R&BD Group, Korea Institute of Industrial Technology, Busan 46938, KoreaEnergy Component & Material R&BD Group, Korea Institute of Industrial Technology, Busan 46938, KoreaEnergy Component & Material R&BD Group, Korea Institute of Industrial Technology, Busan 46938, KoreaDepartment of Naval Architecture and Ocean Engineering, Pusan National University, Busan 46241, KoreaIn terms of steel alloying elements, generally, nickel is used as an austenite stabilizing element to increase the toughness of steel. The low temperature materials, such as nickel alloy steels with a nickel content of 3.5% to 9%, stainless steel and Invar, show excellent toughness at low (173 K) and cryogenic (108 K) temperatures. In particular, in the shipbuilding industry, it is mainly used for liquefied ethane and Liquefied Natural Gas (LNG) carriers, and research on low-temperature steels are attracting attention again as regulations on environmental issues are strengthened in recent years. Therefore, in this study, fatigue and fracture performances of nickel alloy steel containing 9% or less among nickel alloy steels are evaluated. Moreover, we assess the Fatigue Ductile to Brittle Transition (FDBT) of nickel alloy steels based on crack tip opening displacement (CTOD). In order to discuss the fatigue and fracture performances of nickel alloy steels, microstructure analysis carried out. As a result, CTOD and Fatigue Crack Growth Rate (FCGR) of nickel alloy steels increases as nickel contents increase. In addition, FDBT of 9% nickel alloy steel is the lowest compared to other nickel alloy steels.https://www.mdpi.com/2075-4701/12/2/173nickel alloy steelcrack tip opening displacement (CTOD)fatigue crack growth rate (FCGR)Fatigue Ductile to Brittle Transition (FDBT) |
| spellingShingle | Jeong Yeol Park Byoung Koo Kim Dae Geun Nam Myung Hyun Kim Effect of Nickel Contents on Fatigue Crack Growth Rate and Fracture Toughness for Nickel Alloy Steels nickel alloy steel crack tip opening displacement (CTOD) fatigue crack growth rate (FCGR) Fatigue Ductile to Brittle Transition (FDBT) |
| title | Effect of Nickel Contents on Fatigue Crack Growth Rate and Fracture Toughness for Nickel Alloy Steels |
| title_full | Effect of Nickel Contents on Fatigue Crack Growth Rate and Fracture Toughness for Nickel Alloy Steels |
| title_fullStr | Effect of Nickel Contents on Fatigue Crack Growth Rate and Fracture Toughness for Nickel Alloy Steels |
| title_full_unstemmed | Effect of Nickel Contents on Fatigue Crack Growth Rate and Fracture Toughness for Nickel Alloy Steels |
| title_short | Effect of Nickel Contents on Fatigue Crack Growth Rate and Fracture Toughness for Nickel Alloy Steels |
| title_sort | effect of nickel contents on fatigue crack growth rate and fracture toughness for nickel alloy steels |
| topic | nickel alloy steel crack tip opening displacement (CTOD) fatigue crack growth rate (FCGR) Fatigue Ductile to Brittle Transition (FDBT) |
| url | https://www.mdpi.com/2075-4701/12/2/173 |
| work_keys_str_mv | AT jeongyeolpark effectofnickelcontentsonfatiguecrackgrowthrateandfracturetoughnessfornickelalloysteels AT byoungkookim effectofnickelcontentsonfatiguecrackgrowthrateandfracturetoughnessfornickelalloysteels AT daegeunnam effectofnickelcontentsonfatiguecrackgrowthrateandfracturetoughnessfornickelalloysteels AT myunghyunkim effectofnickelcontentsonfatiguecrackgrowthrateandfracturetoughnessfornickelalloysteels |