Formation of core-shell structured carbides via interphase ...
2024年8月1日 · TEM characterizations showed that the multiple additions of V and Nb resulted in B1 structured alloy carbides with (V,Nb)C-cores and VC-shells, resulting in denser carbide …
Effect of V, Nb, and Ti microalloying on low–temperature impact ...
2023年7月10日 · The micron–sized coarse (V, Nb, Ti) (C, N) particles were the main factor responsible for the low impact energy (35.5 J) at room temperature and high DBTT (−7 °C) of …
Correlative Electron Microscopy Analysis of Precipitates in a V–Nb…
2024年5月30日 · Correlative microscopy is an advanced technique that has been performed to elucidate precipitation behavior of a V–Nb–Mo micro-alloyed steel. The same sample region …
Comparison of Strengthening Mechanism of the Nb, V, and Nb-V …
2024年11月20日 · The results show that Nb-V composite micro-alloyed steel possessed a higher yield strength compared with Nb or V micro-alloyed steel when quenched at 870 °C and …
Substantially improved room-temperature tensile ductility in ...
2025年1月20日 · Compared to equimolar Ti-V-Zr-Nb, a (Ti1.5V)3ZrNb composition demonstrated an impressive 360% improvement in elongation while sustaining a high yield strength of …
北理工&西安交大《Nature》大子刊：促变形均匀化的塑性提升机 …
2023年4月14日 · 以Ti-Zr-V-Nb-Al体系BCC高熵合金为研究模型，辅以适当的热处理工艺，平面滑移（planar slip）诱导变形局域化这一削弱拉伸塑性的机制转变为“多级”平面滑移促进变形均 …
V和B元素对Ti-44Al-5Nb-1Mo合金显微组织及热变形机制的影响
为了探究V和B元素复合添加对β型γ-TiAl合金的显微组织和变形机制产生的影响，本工作针对Ti-44Al-5Nb-1Mo合金和Ti-44Al-5Nb-1Mo-2V-0.2B合金，进行了不同温度和应变速率条件下的高 …
Internal stresses and hardness of alloys based on the V-Nb
2025年2月5日 · Equiatomic Ti–V–Ta and Ti–V–Ta–Nb alloys have shown an especially low neutron absorption cross-section and stable and strong mechanical properties at the …
轻质Ti-Sc-Zr-Nb-V高熵合金的结构-性能关系,Journal of Alloys and …
最近，探索轻质高熵合金（HEA）作为未来工程材料的潜在应用一直是一个热门话题。在这项工作中，新型轻质 Ti 22 Sc 22 Zr 22 Nb 17 V 17、Ti 24 Sc 20 Zr 22 Nb 17 V 17、Ti 24 Sc 22 Zr …
The optimal TBNV-3 composite achieved nearly 100% conversion with 99% selectivity for styrene epoxidation, superior to that of the most reported coupled photocatalysts. Systematic …
高强度低合金钢中V和Nb对氢陷阱的影响 - jcscp.org
结果表明，V与Nb能够通过在钢中形成碳化物使得原奥氏体晶粒细化和位错密度增加，引起钢中可逆氢陷阱密度增加，从而降低氢扩散系数以及提高钢中氢含量和氢扩散激活能。
(PDF) 时效对含Nb低合金高强钢显微组织和力学性能的影响 张继明 …
2019年6月5日 · 研究了含Nb 低合金高强钢在不同时效工艺下的力学性能和显微组织，并采用扫描电镜 ( SEM) 和透射电镜 ( TEM) 及原位分析方法研究了时效过程中试验钢 ...
《ACTA》：阐明了！微合金化铁素体钢中相界面析出强化机制！
沉淀硬化 是一种有效的合金强化机制，这一机制可以提高高达150~300MPa的屈服强度。 Ti，Nb，Mo，Cr和V是高强度低合金钢铁素体组织中常用的合金元素。 为了达到显著的强化 …
Hydrogen embrittlement (HE) susceptibility was evaluated on JIS–SUP12-based steel (SB), and V-, Nb- and (Nb+Mo)-added steels (SV, SNb and SNbMo, respectively) under uniaxial tension …
The effect of thermomechanical treatment on the mechanical …
Ti-Nb-Zr is a ternary metastable β titanium alloy designed based on d-electron orbital theory. It contains only β stabilizing element Nb and neutral element Zr, which helps reduce the risk of …
Phase transformation and deformation behavior of NiTi-Nb …
2016年4月6日 · Phase transformation and deformation behavior of the NiTi-Nb eutectic microstructure were investigated using transmission electron microscopy (TEM) and cyclic …
Combination of TEM and 3D atom probe study of microstructure …
A 3D atom probe combined with TEM was applied to characterize carbides precipitation in Nb-V microalloyed steel aging at 550 °C for different times after being water-quenched from 1200 °C.
Experimental determination and thermodynamic description of the Nb-V …
2018年11月5日 · Experiments show that there exists a miscibility gap in the low temperature region of Nb-V binary system. Two typical phase transition mechanisms of the spinodal …
The DOis phase, an A3B phase, is known to have a preference for Al on the B sites and a mixture of (Ti.Nb) on the A sites (Ref. 23 in [1]) in Ti-Al-Nb alloys. Thus stability of this phase with …
Laser-directed energy deposition of high-strength Ti6Al4V
4 天之前 · The wide application of additive-manufactured Ti alloys is impeded by coarse columnar grains along the building direction and thus the severe anisotropy of mechanical properties. To …