M. Yu. Kollerov, D. E. Gusev, M. B. Afonina, O. S. Alsaeva
{"title":"Effect of the Quenching Temperature on the Mechanical and Thermal Stability of the Structure of VT16 Alloy","authors":"M. Yu. Kollerov, D. E. Gusev, M. B. Afonina, O. S. Alsaeva","doi":"10.1134/S0036029526701004","DOIUrl":null,"url":null,"abstract":"<p><b>Abstract</b>—The mechanical and thermal stability of the β- and α\"-phases of a quenched α + β VT16 titanium alloy (Ti–Al–Mo–V system) has been investigated. The β-phase present in the structure of the alloy quenched from temperatures of 740–800°C is found to be mechanically unstable and transforms into α\" martensite during deformation. After quenching from 770°C, the α\"-phase undergoes the reverse martensitic transformation into the β phase at temperatures of 86–165°C upon subsequent heating (at a rate of 10–15°C/min); this phase then undergoes the β → ω- and β → α transformations. After quenching from 800°C, the reverse martensitic transformation occurs in the temperature range 306–340°C and is then replaced by the β → ω transformation followed by diffusional decomposition into the α- and β-phases. In the alloy quenched from 830°C or above, diffusional decomposition of α\" martensite occurs with the formation of an α + β structure upon subsequent heating above 400°C. The quenching temperature is shown to affect the hardness, yield strength, and elastic modulus of the alloy. The lowest values of these properties are observed after quenching from 770°C, which is due to the mechanical instability of the β phase.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2026 5","pages":"844 - 851"},"PeriodicalIF":0.3000,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Metallurgy (Metally)","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0036029526701004","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
引用次数: 0
Abstract—The mechanical and thermal stability of the β- and α"-phases of a quenched α + β VT16 titanium alloy (Ti–Al–Mo–V system) has been investigated. The β-phase present in the structure of the alloy quenched from temperatures of 740–800°C is found to be mechanically unstable and transforms into α" martensite during deformation. After quenching from 770°C, the α"-phase undergoes the reverse martensitic transformation into the β phase at temperatures of 86–165°C upon subsequent heating (at a rate of 10–15°C/min); this phase then undergoes the β → ω- and β → α transformations. After quenching from 800°C, the reverse martensitic transformation occurs in the temperature range 306–340°C and is then replaced by the β → ω transformation followed by diffusional decomposition into the α- and β-phases. In the alloy quenched from 830°C or above, diffusional decomposition of α" martensite occurs with the formation of an α + β structure upon subsequent heating above 400°C. The quenching temperature is shown to affect the hardness, yield strength, and elastic modulus of the alloy. The lowest values of these properties are observed after quenching from 770°C, which is due to the mechanical instability of the β phase.
期刊介绍:
Russian Metallurgy (Metally) publishes results of original experimental and theoretical research in the form of reviews and regular articles devoted to topical problems of metallurgy, physical metallurgy, and treatment of ferrous, nonferrous, rare, and other metals and alloys, intermetallic compounds, and metallic composite materials. The journal focuses on physicochemical properties of metallurgical materials (ores, slags, matters, and melts of metals and alloys); physicochemical processes (thermodynamics and kinetics of pyrometallurgical, hydrometallurgical, electrochemical, and other processes); theoretical metallurgy; metal forming; thermoplastic and thermochemical treatment; computation and experimental determination of phase diagrams and thermokinetic diagrams; mechanisms and kinetics of phase transitions in metallic materials; relations between the chemical composition, phase and structural states of materials and their physicochemical and service properties; interaction between metallic materials and external media; and effects of radiation on these materials.