Deformation behavior of friction-stir welded Al-Mg-Mn alloy with ultrafine-grained structure

نویسندگان

چکیده

Low-temperature friction-stir welding (FSW) was successfully applied for the joining of Al-Mg-Mn alloy with an ultrafine-grained microstructure. The low-temperature conditions preserved fine-grained microstructure and nano-scale second-phase particles in stir zone thus provided nearly-100% joint efficiency produced welds. deformation behavior welded joints studied via digital image correlation technique. strengthening mechanisms base material were examined. • Low-heat-input FSW is effective retention properties alloys. achieved. Fine-grained structure dispersoids retained zone.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

THERMAL STABILITY OF FRICTION STIR PROCESSED ULTRAFINE GRAINED Al-Mg-Sc ALLOY

Two different aspects of the thermal stability of grains were studied – (i) thermal stability of grain structure evolution during friction stir processing (FSP), and (ii) thermal stability of grains after FSP. It was concluded that Al3(Sc,Zr) dispersoids are effective in limiting grain growth to ultrafine grained regime (UFG) by stabilizing the microstructure during FSP. The presence of these d...

متن کامل

Dynamic observations of deformation in an ultrafine-grained Al–Mg alloy with bimodal grain structure

The tensile properties and deformation response of an ultrafine-grained (UFG) Al–Mg alloy with bimodal grain structure were investigated using a micro-straining unit and a strain mapping technique. Atomized Al 5083 powder was ball-milled in liquid N2 to obtain a nanocrystalline (NC) structure, then blended with 50 wt.% unmilled coarse-grained (CG) powder, and consolidated to produce a bimodal g...

متن کامل

Corrosion Behavior of the Friction Stir Welded AZ31 Magnesium Alloy.

* IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal ** DEQ/ICEMS, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049001 Lisboa, Portugal. *** Department of Engineering Design and Production, School of Engineering, Aalto University, P.O. Box 1420, FI-00076 Aalto, Finland **** Faculdade de Engenharia da universidade do P...

متن کامل

Tensile Deformation and Fracture Mechanism of Bulk Bimodal Ultrafine-Grained Al-Mg Alloy

The tensile fractures of ultrafine-grained (UFG) Al-Mg alloy with a bimodal grain size were investigated at the microand macroscale using transmission electron microscopy (TEM), scanning electron microscopy (SEM) equipped with focused ion beam (FIB), and optical microscopy. The nanoscale voids and crack behaviors near the tensile fracture surfaces were revealed in various scale ranges and provi...

متن کامل

Fatigue Behavior of an Ultrafine-Grained Al-Mg-Si Alloy Processed by High-Pressure Torsion

The paper presents the evaluation of the mechanical and fatigue properties of an ultrafine-grained (UFG) Al 6061 alloy processed by high-pressure torsion (HPT) at room temperature (RT). A comparison is made between the UFG state and the coarse-grained (CG) one subjected to the conventional aging treatment Т6. It is shown that HPT processing leads to the formation of the UFG microstructure with ...

متن کامل

ذخیره 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: Materials Characterization

سال: 2022

ISSN: ['1044-5803', '1873-4189']

DOI: https://doi.org/10.1016/j.matchar.2022.111758