X-ray diffraction study of the structural evolution in a grade 1469 (Al-Cu-Li) alloy during the production of hot-rolled sheets |
| |
Authors: | V F Shamrai O E Grushko E M Lazarev A S Gordeev V N Timofeev |
| |
Affiliation: | (1) Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskii pr. 49, Moscow, 119991, Russia;(2) Federal State Unitary Enterprise All-Russian Research Institute of Aviation Materials, Moscow, Russia |
| |
Abstract: | X-ray diffraction is used to study the structural changes in a grade 1469 (Al-Cu-Li) alloy with a high lithium content that occur during the production of hot-rolled sheets according to the ingot → pressed strip → hot-rolled sheet schedule. In the pressed strip, a multicomponent Bs {110}〈112〉, Cu {211}〈111〉, and S {123}〈111〉 texture forms, which is typical of articles pressed from such alloys, and an unusual intense single-component texture of the Ex1 {011}〈111〉 type forms in the hot-rolled sheets. Its formation is stimulated by cross rolling of the sheets. The low strength characteristics of the hot-rolled sheets after heat treatment are related to an elevated heating temperature used for quenching and to the oriented precipitation of the lamellar particles of the hardening T 1 phase. |
| |
Keywords: | PACS number" target="_blank">PACS number 61 66 -f |
本文献已被 SpringerLink 等数据库收录! |
|