Aluminum-Lithium alloys.
نویسندگان
چکیده
منابع مشابه
Porosity Development during Heat Treatment of Aluminum-lithium Alloys
The development of a sub-surface layer of porosity during heat treatment has been studied in a variety of A1-Li alloys. Pure binary A1-Li alloys and three commercial materials were heat treated in air, vacuum and hydrogen for various lengths of time. Subsequent metallographic sectioning and polishing revealed the presence of a band of pores in the near-surface region extending approximately 300...
متن کاملCharacterization and Depth Profile of Lithium Depletion in Aluminum-lithium Alloys by Ultrasound
Aluminum-Lithium (AI-Li) alloys have been developed as an alternative to conventional aluminum alloys for use in aerospace and other applications where lowweight, high strength materials are required. The use of Al-Li alloys in military and civil air transport continues to increase [1]. The key benefits of AI-Li alloys, when compared to conventional aluminum alloys, are the lower density and hi...
متن کاملAluminum and Aluminum Alloys Casting Problems
Aluminum castings have played an integral role in the growth of the aluminum industry since its inception in the late 19th century. The first commercial aluminum products were castings, such as cooking utensils and decorative parts, which exploited the novelty and utility of the new metal. Those early applications rapidly expanded to address the requirements of a wide range of engineering speci...
متن کاملLithium and Aluminum Anthracenyldiimidosulfinates
9,10-Dibromo-anthracene was lithiated once or twice, and the products were reacted with different sulfurdiimides. The reactions yielded [(THF)2Li(NBu)2SAnBr] (1), [(Et2O)(LiBr)Li(NBu)2SAnBr]2 (2), [Me2Al(NBu)2SAnBr] (3), [{(THF)2Li(NR)2S}2An] (4: R = tBu; 5: R = SiMe3) and [{Me2Al(NSiMe3)2S}2An] (6). All products were fully characterized by X-ray structure analysis, elemental analysis, NMR and ...
متن کاملDIFFICULTIES IN GRAIN REFINING ALUMINUM LITHIUM ALLOYS USING COMMERCIAL Al-Ti AND Al-Ti-Bor MASTER ALLOYS
High strength aluminum alloys, especially those containing zirconium, are historically difficult to grain refine. Early efforts by Alcoa indicated that the addition of lithium to these alloys increases difficulty with grain refinement. Although grain refining of alloys 2090 and 2091 was possible, consistent results were not obtained. Statistically-designed experiments were used to quickly ident...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Japan Institute of Light Metals
سال: 1989
ISSN: 0451-5994
DOI: 10.2464/jilm.39.67