共搜索到15344条信息，每页显示10条信息，共1535页。用时：0小时0分1秒119毫秒
of titanium alloys has become a complex decision-making task due to the growing number of creation and utilization for titanium alloys,with each having its own characteristics,advantages,and limitations.In choosing the most appropriate titanium alloys,it is very essential to offer a reasonable and intelligent service for technical engineers.One possible solution of this problem is to develop a database......
binder and refractory materials. Using two kinds of casting methods (gravity casting and centrifugal casting), the titanium aluminum alloys with rare earth element (Ti-47.5Al-2Cr-2Nb-0.3Y and Ti-45Al-5Nb-0.3Y) were cast into the mould shells. The microstructures of investment casting titanium aluminum alloys were observed by optical microscope (OM). The distributions of elements of topping......
titanium alloys can be strengthened over a considerable range by precipitation hardening and they also exhibit excellent hot and cold formability, deep hardening characteristics and superior corrosion resistance. All these advantages make metastable beta titanium alloys become attractive materials for the applications in critical high-stress and corrosive service [1-7]. Molybdenum equivalent......
-crystallization assisted softening is dominant at high temperature. Key words: TC4 titanium alloy; flow stress; hot tension; microstructure 1 Introduction Titanium and titanium alloys have been widely used in aviation, spaceflight, weapons and so on as structural materials due to low density, high specific strength and high corrosion resistance[1-3]. However, it is difficult for titanium alloys to deform......
Continuous and directional solidification technology of titanium alloys with cold crucible CHEN Rui-run(陈瑞润), DING Hong-sheng(丁宏升), GUO Jing-jie(郭景杰), BI Wei-sheng(毕维生), FU Heng-zhi(傅恒志) School... solidification of titanium alloys with cold crucible were carried out in a multifunctional electromagnetic cold crucible apparatus. Parameters and factors influencing the surface crack and macrostructure......
alloy containing no titanium; the other two alloys have nearly the same chemical composition as that of ZL108 alloy, except a little titanium added. If the ELTA alloy is used as master alloy for titanium... level α=1%, the difference of KIC between alloys No.1 and No.2 (or No.3) is obvious; but the difference of KIC between alloys No.2 and No.3 is negligible. Therefore, it is confirmed that titanium......
J. Cent. South Univ. (2017) 24: 1762-1766 DOI: https://doi.org/10.1007/s11771-017-3584-8 High-temperature acoustic properties of porous titanium fiber metal materials LIU Shi-feng(刘世锋)1, 2, LI An(李安... titanium fiber material was investigated in terms of sample thickness, porosity, temperature, air-cavity thickness and double-layer structure arrangement. The effects on absorption coefficient were......
......
; deformation mechanism 1 Introduction Titanium alloys, particularly two-phase titanium alloys have been widely used as advanced structural materials in aeronautic applications. Especially, the alloy... of two-phase titanium alloys after primary cogging in the β phase region plays a key role in the conversion of lamellar to equiaxed alpha structure. Thus, it is of particular interest to study......
......
