WebJan 13, 2024 · Synergistic effect of TiB 2 (in form of Al-5Ti-1B) and La on grain refining results in Al-2Cu alloy was investigated. α-Al grains are significantly refined by Al-5Ti-1B. When trace La is added to the melt, further refinement is exhibited. Average grain size and nucleation undercooling of α-Al reduce first and then almost remain unchanged with La … WebThe Al–5Ti–1B alloys with the mass fraction of 0.2% are added to the melt of 7050 aluminum alloys. The grain refinement effect of the Al–5Ti–1B alloys prepared by …
铝合金的晶粒细化 - 知乎 - 知乎专栏
Web采用等离子体发射光谱仪、光学显微镜、X射线衍射仪和扫描电镜,研究了高品质Al-5Ti-1B合金线的化学成分、显微组织和晶粒细化性能。结果表明,高品质Al-5Ti-1B合金线的Ti、B合金元素含量稳定,Fe、Si、V、K杂质元素含量低。 合金线的组织均匀细小,无氧化夹杂物,TiAl3 ... WebFeb 1, 2015 · 1. Introduction. Grain refinement of Al alloys is desirable since it facilitates the casting process, reduces cast defects and therefore offers improved casting quality [1].To achieve a grain-refined cast microstructure, chemical inoculation by the addition of grain refiners has become a common industrial practice [2].The most widely used grain refiner … dixie chicks net worth richest chick
任选具有镧的铈和／或铽磷酸盐、由所述磷酸盐获得的无机发光材 …
http://www.qkku.net/tougao/qikan-60616.html WebAl-5Ti-1B中间合金主要由α-Al,AlTi_3和TiB_2三个相组成,且冷却速率和反应时间不会影响第二相粒子的种类。(2)在本实验研究范围内,为获得内部组织较好的Al-5Ti-1B中间合金,需 … Web结果表明,高品质Al-5Ti-1B合金线的Ti、B合金元素含量稳定,Fe、Si、V、K杂质元素含量低。. 合金线的组织均匀细小,无氧化夹杂物,TiAl3相平均尺寸为16.7μm,TiB2粒子平均尺寸 … dixie chicks nothing compares 2 u