کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
815115 906299 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Processing Maps for Controlling Microstructure of an Aircraft 2E12 Aluminum Alloy
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک مواد
پیش نمایش صفحه اول مقاله
Processing Maps for Controlling Microstructure of an Aircraft 2E12 Aluminum Alloy
چکیده انگلیسی

The deformation behavior and microstructure evolution in a hot compressed 2E12 alloy was investigated by constructing power dissipation map in which work efficiency can be related with microstructure evolution. Compression tests were performed in the temperature range of 250–500 °C and the strain rate ranging from 0.01 s−1 to 10 s−1 up to a true strain of 0.5. The processing maps reveal that two domains where dynamic recovery occurs comparatively: (1) 325–400 °C and 0.01–0.03 s−1, (2) 350–450 °C and 1.78–10 s−1, and partial dynamic recrystallization occurs at T≥450 °C. However, there also is evidence of redissolution of the particles and intercrystalline cracks at 500 °C and 1–10 s−1. It is shown that the volume of partial recrystallization increase with increasing of deformation temperature.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Rare Metal Materials and Engineering - Volume 41, Issue 5, May 2012, Pages 757-761