Takanori Ito , Yasuhito Takashima , Masao Kinefuchi
{"title":"抗裂钢焊接接头疲劳性能的改善。第1部分：焊缝热影响区和十字形角焊接头的疲劳强度","authors":"Takanori Ito , Yasuhito Takashima , Masao Kinefuchi","doi":"10.1016/j.prostr.2025.06.076","DOIUrl":null,"url":null,"abstract":"<div><div>This study investigated whether the newly developed 490 MPa strength class steel, enhanced with solid solution elements, demonstrates superior fatigue properties in welded joints. The fatigue resistance of the Heat Affected Zone (HAZ) was assessed using simulated heat cycle tests. Subsequently, the evaluation was conducted using cruciform welded joints. The results showed that the fatigue strength of the developed steel exceeded that of conventional steel even within the HAZ microstructure. Additionally, it exhibited high fatigue strength in the welded joints as well. Overall, the developed steel offers superior fatigue strength in the HAZ, attributed to solid solution strengthening, and holds potential for improved fatigue properties in welded joints.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"68 ","pages":"Pages 420-424"},"PeriodicalIF":0.0000,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Improvement In Fatigue Properties Of Welded Joints Using Crack Initiation Resistant Steel Part 1: Fatigue Strength Of Weld Heat Affected Zone And Cruciform Fillet Welded Joints\",\"authors\":\"Takanori Ito , Yasuhito Takashima , Masao Kinefuchi\",\"doi\":\"10.1016/j.prostr.2025.06.076\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This study investigated whether the newly developed 490 MPa strength class steel, enhanced with solid solution elements, demonstrates superior fatigue properties in welded joints. The fatigue resistance of the Heat Affected Zone (HAZ) was assessed using simulated heat cycle tests. Subsequently, the evaluation was conducted using cruciform welded joints. The results showed that the fatigue strength of the developed steel exceeded that of conventional steel even within the HAZ microstructure. Additionally, it exhibited high fatigue strength in the welded joints as well. Overall, the developed steel offers superior fatigue strength in the HAZ, attributed to solid solution strengthening, and holds potential for improved fatigue properties in welded joints.</div></div>\",\"PeriodicalId\":20518,\"journal\":{\"name\":\"Procedia Structural Integrity\",\"volume\":\"68 \",\"pages\":\"Pages 420-424\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Procedia Structural Integrity\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2452321625000770\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Procedia Structural Integrity","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2452321625000770","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Improvement In Fatigue Properties Of Welded Joints Using Crack Initiation Resistant Steel Part 1: Fatigue Strength Of Weld Heat Affected Zone And Cruciform Fillet Welded Joints
This study investigated whether the newly developed 490 MPa strength class steel, enhanced with solid solution elements, demonstrates superior fatigue properties in welded joints. The fatigue resistance of the Heat Affected Zone (HAZ) was assessed using simulated heat cycle tests. Subsequently, the evaluation was conducted using cruciform welded joints. The results showed that the fatigue strength of the developed steel exceeded that of conventional steel even within the HAZ microstructure. Additionally, it exhibited high fatigue strength in the welded joints as well. Overall, the developed steel offers superior fatigue strength in the HAZ, attributed to solid solution strengthening, and holds potential for improved fatigue properties in welded joints.
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