کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4966183 1448768 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Stress generation during the quenching of large AA2618 forgings: Finite element computations and validation against neutron diffraction measurements
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Stress generation during the quenching of large AA2618 forgings: Finite element computations and validation against neutron diffraction measurements
چکیده انگلیسی
A phenomenological material model accounting for precipitation in a simple way is used instead of modelling in detail precipitation that occurs during quenching. The required model parameters are identified using a limited number of tensile tests achieved after representative interrupted cooling paths in a Gleeble machine. This model is used in FE computations of stress generation during quenching of large massive AA2618 forgings for compressor impellers. The residual strain and stress profiles are compared with neutron diffraction measurements carried out at SALSA and STRESS-SPEC diffractometers in as-quenched and in T6 conditions. It turned out that the residual stress predictions by FE modelling might be wrong if precipitation is not taken into account properly in the material model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Finite Elements in Analysis and Design - Volume 131, 1 September 2017, Pages 17-24
نویسندگان
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