{"title":"Ti-0.3Mo-0.8Ni合金高温氧化动力学及行为","authors":"Ying Han, Wei Yu, Qing Guo, Zhicheng Cheng","doi":"10.1002/maco.202414667","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>Oxidation of titanium during hot working processes is an important performance factor. This study investigated the oxidation behavior of the Ti-0.3Mo-0.8Ni alloy in air at various temperatures ranging from 850°C to 950°C for different times. The oxidation kinetics were determined by isothermal oxidation weight gain experiments. Results showed that the oxidation kinetics of the Ti-0.3Mo-0.8Ni alloy approximately followed a parabolic law. The oxidation activation energy was 238.73 kJ/mol. The oxide scales were formed on the surface of the alloy at all experimental temperatures, and the oxide scales mainly consisted of Ti<sub>6</sub>O, Ti<sub>3</sub>O, Ti<sub>2</sub>O<sub>3</sub>, and TiO<sub>2</sub>. TiO<sub>2</sub> dominates at each oxidation temperature. Below T<sub>β</sub>, the presence of the Mo element effectively improved the oxidation resistance of the alloy. Above T<sub>β</sub>, the oxidation resistance decreased with increasing temperature, which was mainly due to the enrichment of the Mo element in the β phase with increasing temperature, resulting in the decrease in Mo content in the substrate.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 9","pages":"1395-1405"},"PeriodicalIF":2.0000,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"High-Temperature Oxidation Kinetics and Behavior of Ti-0.3Mo-0.8Ni Alloy\",\"authors\":\"Ying Han, Wei Yu, Qing Guo, Zhicheng Cheng\",\"doi\":\"10.1002/maco.202414667\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n <p>Oxidation of titanium during hot working processes is an important performance factor. This study investigated the oxidation behavior of the Ti-0.3Mo-0.8Ni alloy in air at various temperatures ranging from 850°C to 950°C for different times. The oxidation kinetics were determined by isothermal oxidation weight gain experiments. Results showed that the oxidation kinetics of the Ti-0.3Mo-0.8Ni alloy approximately followed a parabolic law. The oxidation activation energy was 238.73 kJ/mol. The oxide scales were formed on the surface of the alloy at all experimental temperatures, and the oxide scales mainly consisted of Ti<sub>6</sub>O, Ti<sub>3</sub>O, Ti<sub>2</sub>O<sub>3</sub>, and TiO<sub>2</sub>. TiO<sub>2</sub> dominates at each oxidation temperature. Below T<sub>β</sub>, the presence of the Mo element effectively improved the oxidation resistance of the alloy. Above T<sub>β</sub>, the oxidation resistance decreased with increasing temperature, which was mainly due to the enrichment of the Mo element in the β phase with increasing temperature, resulting in the decrease in Mo content in the substrate.</p></div>\",\"PeriodicalId\":18225,\"journal\":{\"name\":\"Materials and Corrosion-werkstoffe Und Korrosion\",\"volume\":\"76 9\",\"pages\":\"1395-1405\"},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2025-04-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials and Corrosion-werkstoffe Und Korrosion\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/maco.202414667\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials and Corrosion-werkstoffe Und Korrosion","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/maco.202414667","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
High-Temperature Oxidation Kinetics and Behavior of Ti-0.3Mo-0.8Ni Alloy
Oxidation of titanium during hot working processes is an important performance factor. This study investigated the oxidation behavior of the Ti-0.3Mo-0.8Ni alloy in air at various temperatures ranging from 850°C to 950°C for different times. The oxidation kinetics were determined by isothermal oxidation weight gain experiments. Results showed that the oxidation kinetics of the Ti-0.3Mo-0.8Ni alloy approximately followed a parabolic law. The oxidation activation energy was 238.73 kJ/mol. The oxide scales were formed on the surface of the alloy at all experimental temperatures, and the oxide scales mainly consisted of Ti6O, Ti3O, Ti2O3, and TiO2. TiO2 dominates at each oxidation temperature. Below Tβ, the presence of the Mo element effectively improved the oxidation resistance of the alloy. Above Tβ, the oxidation resistance decreased with increasing temperature, which was mainly due to the enrichment of the Mo element in the β phase with increasing temperature, resulting in the decrease in Mo content in the substrate.
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