Regular articleA new beta titanium alloy system reinforced with superlattice intermetallic precipitates
Regular articleA new beta titanium alloy system reinforced with superlattice intermetallic precipitates
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常规文章超晶格金属间析出物增强的新型β钛合金体系
DOI：
10.1016/j.scriptamat.2017.06.038
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发表时间：
2017
影响因子：
6
通讯作者：
D. Dye
中科院分区：
文献类型：
--
作者：
A. J. Knowles;T. Jun;A. Bhowmik;N. Jones;T. B. Britton;F. Giuliani;H. Stone;D. Dye
传统上，钛合金缺乏纳米级的金属间化合物沉淀，其可用于从固溶体进行时效硬化。在Ti-Fe-Mo系统中发展了这种强化概念，发现可以获得用于均匀化的高温β（bcc A2）单相场，其在时效（750 °C/80 h）后沉淀出尺寸<100 nm的B2 TiFe。取向关系为{100}A2//{100}B2，错配为-6.1%。该合金非常硬（HV0.5= 6.4 GPa）和强（σy，0.2= 1.9 GPa），密度为6.68 g cm−3。TEM观察和微柱变形表明，析出相抵抗位错切割。
Titanium alloys traditionally lack a nm-scale intermetallic precipitate that can be exploited for age-hardening from solid solution. Here such a strengthening concept is developed in the Ti-Fe-Mo system, with it being found that a high temperatureβ(bcc A2) single-phase field for homogenisation can be obtained, which following ageing (750 °C/80 h) precipitated B2 TiFe <100 nm in size. The orientation relationship was found to be ⟨100⟩A2//⟨100⟩B2, {100}A2//{100}B2, with a misfit of −6.1%. The alloy was found to be very hard (HV0.5= 6.4 GPa) and strong (σy, 0.2= 1.9 GPa) with a density of 6.68 g cm−3. TEM observation and micropillar deformation showed that the precipitates resist dislocation cutting.
利用耦合微柱压缩和微劳厄衍射研究复杂金属合金 Al13Co4 的变形机制
影响因子：
4
作者：
Bhowmik A
通讯作者：
Bhowmik A
影响因子：
9.4
作者：
Vo, Nhon Q.;Liebscher, Christian H.;Dunand, David C.
通讯作者：
Dunand, David C.
影响因子：
9.4
作者：
H. Weekes;V. Vorontsov;I. Dolbnya;J. Plummer;F. Giuliani;T. B. Britton;D. Dye
通讯作者：
H. Weekes;V. Vorontsov;I. Dolbnya;J. Plummer;F. Giuliani;T. B. Britton;D. Dye