M. Goto, Takahito Utsunomiya, Takaei Yamamoto, Seung-Zeon Han, J. Kitamura, J. Ahn, Sung-Hwan Lim, T. Yakushiji
{"title":"ni2si金属间化合物强化cu-ni-si合金的组织与疲劳性能","authors":"M. Goto, Takahito Utsunomiya, Takaei Yamamoto, Seung-Zeon Han, J. Kitamura, J. Ahn, Sung-Hwan Lim, T. Yakushiji","doi":"10.2495/cmem210071","DOIUrl":null,"url":null,"abstract":"Microstructure and fatigue properties of Cu–6Ni–1.5Si alloy having different morphologies of Ni2Si intermetallic compounds that are disk-shaped continuous precipitates (CPs) with nano-size diameter by normal aging, fibre-shaped discontinuous precipitates (DPs) by overaging and elongated DPs fabricated by cold-rolling (DPR) were studied. There was a negligible difference in fatigue strength between the CP and DP specimens despite higher tensile strength of the CP specimen. The DPR specimen had the highest tensile and fatigue strengths in all specimens. The fatigue crack initiation resistance of the DPR specimen was drastically enhanced. The growth rate of a small crack can be determined by a term σanl. The crack growth resistance of the DPR specimen was nearly equal to that of the CP specimen. The reason for such trends of tensile and fatigue strengths was discussed based on the microstructure of each specimen.","PeriodicalId":406572,"journal":{"name":"Computational Methods and Experimental Measurements XX","volume":"34 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"MICROSTRUCTURE AND FATIGUE PROPERTIES OF CU–NI–SI ALLOY STRENGTHENED BY NI2SI INTERMETALLIC COMPOUNDS\",\"authors\":\"M. Goto, Takahito Utsunomiya, Takaei Yamamoto, Seung-Zeon Han, J. Kitamura, J. Ahn, Sung-Hwan Lim, T. Yakushiji\",\"doi\":\"10.2495/cmem210071\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Microstructure and fatigue properties of Cu–6Ni–1.5Si alloy having different morphologies of Ni2Si intermetallic compounds that are disk-shaped continuous precipitates (CPs) with nano-size diameter by normal aging, fibre-shaped discontinuous precipitates (DPs) by overaging and elongated DPs fabricated by cold-rolling (DPR) were studied. There was a negligible difference in fatigue strength between the CP and DP specimens despite higher tensile strength of the CP specimen. The DPR specimen had the highest tensile and fatigue strengths in all specimens. The fatigue crack initiation resistance of the DPR specimen was drastically enhanced. The growth rate of a small crack can be determined by a term σanl. The crack growth resistance of the DPR specimen was nearly equal to that of the CP specimen. The reason for such trends of tensile and fatigue strengths was discussed based on the microstructure of each specimen.\",\"PeriodicalId\":406572,\"journal\":{\"name\":\"Computational Methods and Experimental Measurements XX\",\"volume\":\"34 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-07-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Computational Methods and Experimental Measurements XX\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2495/cmem210071\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Computational Methods and Experimental Measurements XX","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2495/cmem210071","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
MICROSTRUCTURE AND FATIGUE PROPERTIES OF CU–NI–SI ALLOY STRENGTHENED BY NI2SI INTERMETALLIC COMPOUNDS
Microstructure and fatigue properties of Cu–6Ni–1.5Si alloy having different morphologies of Ni2Si intermetallic compounds that are disk-shaped continuous precipitates (CPs) with nano-size diameter by normal aging, fibre-shaped discontinuous precipitates (DPs) by overaging and elongated DPs fabricated by cold-rolling (DPR) were studied. There was a negligible difference in fatigue strength between the CP and DP specimens despite higher tensile strength of the CP specimen. The DPR specimen had the highest tensile and fatigue strengths in all specimens. The fatigue crack initiation resistance of the DPR specimen was drastically enhanced. The growth rate of a small crack can be determined by a term σanl. The crack growth resistance of the DPR specimen was nearly equal to that of the CP specimen. The reason for such trends of tensile and fatigue strengths was discussed based on the microstructure of each specimen.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
