Weiming Li, Zhong Yang, Ping Wang, Lele Liu, Yimeng Wang, Shaoqing Wang, Li Chang, Li Ma
{"title":"不同氧化模式对 TC11 钛合金氧化层生长的影响","authors":"Weiming Li, Zhong Yang, Ping Wang, Lele Liu, Yimeng Wang, Shaoqing Wang, Li Chang, Li Ma","doi":"10.1016/j.jmrt.2024.09.005","DOIUrl":null,"url":null,"abstract":"In order to study the effect of isothermal oxidation and cyclic oxidation on the oxide layer growth process of titanium alloys, high-temperature oxidization tests were conducted on TC11(Ti-6.5Al-3.5Mo-1.5Zr-0.3Si)titanium alloy in air at 650 °C. After 300 h of oxidization, the isothermal oxidation causes the formation of a dense oxide layer, contributing to increased resistance to further oxidization. During cyclic oxidization, the oxide layer exhibits a needle-like feature, containing large pores. The thickness of the oxide layers formed by cyclic oxidation and isothermal oxidation are approximately 8.6 μm and 2.7 μm, respectively. Under specific temperatures and oxidizing times, the isothermal oxidation process is controlled by the diffusion mechanism of oxygen, whereas the cyclic oxidation process is controlled by a combination of the interfacial reaction control and the diffusion mechanism of oxygen. This results in greater diffusion coefficients and faster growth kinetics for cyclic oxidation.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of different oxidation modes on the growth of oxide layer of TC11 titanium alloy\",\"authors\":\"Weiming Li, Zhong Yang, Ping Wang, Lele Liu, Yimeng Wang, Shaoqing Wang, Li Chang, Li Ma\",\"doi\":\"10.1016/j.jmrt.2024.09.005\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In order to study the effect of isothermal oxidation and cyclic oxidation on the oxide layer growth process of titanium alloys, high-temperature oxidization tests were conducted on TC11(Ti-6.5Al-3.5Mo-1.5Zr-0.3Si)titanium alloy in air at 650 °C. After 300 h of oxidization, the isothermal oxidation causes the formation of a dense oxide layer, contributing to increased resistance to further oxidization. During cyclic oxidization, the oxide layer exhibits a needle-like feature, containing large pores. The thickness of the oxide layers formed by cyclic oxidation and isothermal oxidation are approximately 8.6 μm and 2.7 μm, respectively. Under specific temperatures and oxidizing times, the isothermal oxidation process is controlled by the diffusion mechanism of oxygen, whereas the cyclic oxidation process is controlled by a combination of the interfacial reaction control and the diffusion mechanism of oxygen. This results in greater diffusion coefficients and faster growth kinetics for cyclic oxidation.\",\"PeriodicalId\":501120,\"journal\":{\"name\":\"Journal of Materials Research and Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Research and Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1016/j.jmrt.2024.09.005\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Research and Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1016/j.jmrt.2024.09.005","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Effect of different oxidation modes on the growth of oxide layer of TC11 titanium alloy
In order to study the effect of isothermal oxidation and cyclic oxidation on the oxide layer growth process of titanium alloys, high-temperature oxidization tests were conducted on TC11(Ti-6.5Al-3.5Mo-1.5Zr-0.3Si)titanium alloy in air at 650 °C. After 300 h of oxidization, the isothermal oxidation causes the formation of a dense oxide layer, contributing to increased resistance to further oxidization. During cyclic oxidization, the oxide layer exhibits a needle-like feature, containing large pores. The thickness of the oxide layers formed by cyclic oxidation and isothermal oxidation are approximately 8.6 μm and 2.7 μm, respectively. Under specific temperatures and oxidizing times, the isothermal oxidation process is controlled by the diffusion mechanism of oxygen, whereas the cyclic oxidation process is controlled by a combination of the interfacial reaction control and the diffusion mechanism of oxygen. This results in greater diffusion coefficients and faster growth kinetics for cyclic oxidation.