{"title":"分散强化镍的稳态蠕变","authors":"A. Clauer, B. A. Wilcox","doi":"10.1179/MSC.1967.1.1.86","DOIUrl":null,"url":null,"abstract":"AbstractHigh-temperature creep studies have been conducted on “recrystallized” nickel-tho ria alloys which contained various ThO2 particle sizes (220-550 A dia.) and volume fractions (0.01-0.045). Creep results, together with structural studies employing electron microscopy, indicate that the rate-controlling creep process is the climb of edge dislocations over ThO2 particles. Calculations predict that the steady-state creep rate, έ s , is related to particle size and spacing by e s ∝ d2/r v , where d is the mean planar centre-to-centre particle spacing, and r v is the average particle radius. This relation is in accord with experimental observations.","PeriodicalId":103313,"journal":{"name":"Metal Science Journal","volume":"11 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"51","resultStr":"{\"title\":\"Steady-State Creep of Dispersion-Strengthened Nickel\",\"authors\":\"A. Clauer, B. A. Wilcox\",\"doi\":\"10.1179/MSC.1967.1.1.86\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"AbstractHigh-temperature creep studies have been conducted on “recrystallized” nickel-tho ria alloys which contained various ThO2 particle sizes (220-550 A dia.) and volume fractions (0.01-0.045). Creep results, together with structural studies employing electron microscopy, indicate that the rate-controlling creep process is the climb of edge dislocations over ThO2 particles. Calculations predict that the steady-state creep rate, έ s , is related to particle size and spacing by e s ∝ d2/r v , where d is the mean planar centre-to-centre particle spacing, and r v is the average particle radius. This relation is in accord with experimental observations.\",\"PeriodicalId\":103313,\"journal\":{\"name\":\"Metal Science Journal\",\"volume\":\"11 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"51\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Metal Science Journal\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1179/MSC.1967.1.1.86\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metal Science Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1179/MSC.1967.1.1.86","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Steady-State Creep of Dispersion-Strengthened Nickel
AbstractHigh-temperature creep studies have been conducted on “recrystallized” nickel-tho ria alloys which contained various ThO2 particle sizes (220-550 A dia.) and volume fractions (0.01-0.045). Creep results, together with structural studies employing electron microscopy, indicate that the rate-controlling creep process is the climb of edge dislocations over ThO2 particles. Calculations predict that the steady-state creep rate, έ s , is related to particle size and spacing by e s ∝ d2/r v , where d is the mean planar centre-to-centre particle spacing, and r v is the average particle radius. This relation is in accord with experimental observations.
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