Isothermal omega formation and evolution in the Beta-Ti alloy Ti-5Al-5Mo-5V-3Cr

Coakley James; Radecka Anna; Dye David; Bagot Paul A. J.; Stone Howard J.; Seidman David N.; Isheim Dieter

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Isothermal omega formation and evolution in the Beta-Ti alloy Ti-5Al-5Mo-5V-3Cr

机译：等温ω-5MO-5V-3CR中的等温ω形成和演变

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The isothermal omega phase of Ti-5Al-5Mo-5V-3Cr wt.% is formed within a 2h heat treatment at 300 degrees C and identified by atom probe tomography as Ti-rich/solute lean precipitates. The composition and size remain essentially constant during ageing, although the volume fraction increases to 9.5% after ageing for 8 h. This is consistent with an ongoing transformation process of athermal. to isothermal omega. The omega/beta interface becomes enriched with oxygen. This may be of significance as oxygen strongly stabilizes the a phase, and the omega/beta interface has previously been suggested as the nucleation site for subsequent a formation.

机译：Ti-5Al-5MO-5V-3CR WT值的等温ω相。％在300℃的2H热处理中形成，并通过原子探针断层扫描鉴定为富含Ti /溶质贫沉淀物。在老化期间，组合物和尺寸基本上保持恒定，尽管在老化8小时后体积分数增加到9.5％。这与动脉的正在进行的转化过程一致。到等温欧米茄。 ω/β接口富含氧气。这可能具有重要性，因为氧气强烈稳定阶段，并且先前已经提出了ω/β界面作为核切割位点以供随后形成。

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来源
《Philosophical Magazine Letters》 |2016年第12期|共9页
作者
Coakley James; Radecka Anna; Dye David; Bagot Paul A. J.; Stone Howard J.; Seidman David N.; Isheim Dieter;
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作者单位

Northwestern Univ Dept Mat Sci &

Engn Evanston IL 60208 USA;

Imperial Coll Dept Mat London England;

Imperial Coll Dept Mat London England;

Univ Oxford Dept Mat Oxford England;

Univ Cambridge Dept Mat Sci &

Met Cambridge England;

Northwestern Univ Dept Mat Sci &

Engn Evanston IL 60208 USA;

Northwestern Univ Dept Mat Sci &

Engn Evanston IL 60208 USA;

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原文格式 PDF
正文语种 eng
中图分类物理学;
关键词
Atom probe tomography; precipitation; titanium alloys; ageing; nucleation of phase transformations;

机译：原子探测断层扫描;降水;钛合金;老化;相变的成核;

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4. Isothermal omega formation and evolution in the Beta-Ti alloy Ti-5Al-5Mo-5V-3Cr [J] . Coakley James, Radecka Anna, Dye David, Philosophical Magazine Letters . 2016,第10a12期

机译：等温ω-5MO-5V-3CR中的等温ω形成和演变
5. Deformation twinning-induced single-variant omega-plates in metastable beta-Ti alloys containing athermal omega-precipitates [J] . Chen Wei, Li Keer, Yu Guoxiang, Journal of Materials Science . 2021,第12期

机译：含有动脉ω-沉淀物的亚稳β-Ti合金中的孪生单变种ω-沉淀物
6. Nucleation driving force for omega-assisted formation of alpha and associated omega morphology in beta-Ti alloys [J] . Li Tong, Kent Damon, Sha Gang, Scripta materialia . 2018,第期

机译：在β-Ti合金中ω辅助形成ω-Ti和相关ω形态的成核驱动力
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机译：β-Ti-Mo合金具有等温ω相的塑性变形
8. ISOTHERMAL TRANSFORMATION STUDIES ON THE EFFECTS OF ALLOYING ELEMENTS (MOLYBDENUM, NICKEL, CHROMIUM, MANGANESE, ALUMINUM, SILICON, COBALT) ON THE KINETICS OF THE AUSTENITE TO BAINITE TRANSFORMATION. [D] . LLOPIS DE YNDURAIN, ANA MARIA. 1977

机译：合金元素（钼，镍，铬，锰，铝，硅，钴）对奥氏体向贝氏体转变动力学的等温转变研究。
9. Comparison of the Cracking Behavior of Powder Metallurgy and Ingot Metallurgy Ti-5Al-5Mo-5V-3Cr Alloys during Hot Deformation [O] . Qinyang Zhao, Fei Yang, Rob Torrens, 2019

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10. Isothermal omega formation and evolution in the Beta-Ti alloy Ti-5Al-5Mo-5V-3Cr [O] . Coakley, J, Radecka, A, Dye, D, 2016

机译：β-Ti合金Ti-5al-5mo-5V-3Cr中的等温Ω形成和演变
11. Isothermal Transformation Studies on the Effect of Alloying Elements (Mo, Ni, Cr, Mn, Al, Si, CO) in Steels on the Kinetics of the Austenite to Bainite Transformation. [R] . Llopis, A. M. 1976

机译：钢中合金元素（mo，Ni，Cr，mn，al，si，CO）对奥氏体向贝氏体相变动力学影响的等温转变研究。

Isothermal omega formation and evolution in the Beta-Ti alloy Ti-5Al-5Mo-5V-3Cr

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