کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
11029894 1646413 2019 39 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Quantification of thermal residual stresses relaxation in AA7xxx aluminium alloy through cold rolling
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Quantification of thermal residual stresses relaxation in AA7xxx aluminium alloy through cold rolling
چکیده انگلیسی
Residual stresses (RS) are often induced through quenching of aluminum alloys and present a potential risk of developing crack or distortion in subsequent manufacturing processes. Study of methods to minimise the RS in quenched components is of practical importance. In this paper, cold rolling (CR) has been carried out to remove the RS in quenched AA7050 blocks. The CR effect on relaxing RS in quenched AA7050 blocks has been evaluated via the neutron diffraction (ND), X-ray diffraction (XRD) and contour techniques. The results reveal that although CR transforms near-surface residual stresses from large compression to large tension along the rolling direction, it results in remarkable RS relief in the core part of the material. An integrated finite element model for RS evolution through the CR process was put forward and has been validated by the experimental results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 264, February 2019, Pages 454-468
نویسندگان
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