... microstructure was achieved at a low powder feed rate, producing higher microhardness and larger tensile strength. This paper revealed the relations among process, thermal variation, and microstructure of as-built metallic parts to well understand this novel DED process. Email: yzhou134@binghamton.edu...

... of the microhardness, tensile strength, and corrosion resistance of an LPBF manufactured Al-5024 alloy by optimization of heat treatment parameters. The effect of the isothermal heat treatment (IHT) process on the microstructure evolution, mechanical properties, and electrochemical properties of an LPBF-processed Al...

..., as well as the resulting weld microstructure and coach peel strength. It was found that asymmetric nugget growth was most strongly influenced by sheet surface conditions and electrode materials at the positive polarity electrode side. The asymmetric nuggets exhibited a smaller nugget angle in relation...

...Cheng Luo; Yansong Zhang; Michael Oelscher; Yandong Shi; Niels Pasligh; Raphael Koch Application of additively manufactured steels is unavoidably involved in the resistance spot welding with conventionally manufactured steels. However, the microstructural evolution of an additive manufactured steel...

...Tanveer Majeed; Nooruddin Ansari; Yashwant Mehta; Arshad Noor Siddiquee Material flow and heat generation by tool shoulder during Friction Stir Welding (FSW) significantly alters the microstructural and thermomechanical behavior of joints. The effect of shoulder size on mechanical properties...

... Cu-Al intermetallic compounds (IMCs) at the faying interface of Cu to Al. Three welding schedules with various heat input were used to produce different interfacial microstructure. The evolution of interfaces in terms of phase constitution, elemental distribution, and defects (gaps and voids...

... was proposed based on microstructure, microhardness, and residual stresses of CD stud welded joint. The results show that a narrow weld seam with a widmanstaten structure is formed because of quick cooling. For the longer stud extension length, the width of the weld zone becomes wider and the microstructure...

... that may contribute to variations within and among parts made by this process is a difference in the material’s microstructural phase and composition. A continuous cooling transformation (CCT) diagram is a useful tool that can be used with a thermal model for microstructure design and manufacturing process...

... findings provided valuable insights into the effects of the PDS process and microstructures on the resultant fatigue properties of the metal component. Email: djian101@binghamton.edu Email: fning@binghamton.edu 12 11 2020 04 02 2021 04 02 2021 01 04 2021 additive...

...Maziar Toursangsaraki; Huamiao Wang; Yongxiang Hu; Dhandapanik Karthik This study aims to model the effects of multiple laser peening (LP) on the mechanical properties of AA2024-T351 by including the material microstructure and residual stresses using the crystal plasticity finite element method...

... a small shearing clearance, a scar still remains a major defect on the cut-edge. Therefore, in the present study, the mechanism of scar formation of a DP steel sheet, grade SPFC980Y (JIS) subject to a shearing process was investigated and clarified based on the microstructural evolution, fracture...

...Shiv Sharma; Anil Meena The microstructure attributes are responsible for the deformation mechanism of material, which induces shear instability primarily in difficult-to-machine material like Ti–6Al–4V. Consequently, the dynamic cutting force yields serrations in the chip morphology. Therefore...

...Nafiseh Mohammadtabar; Mohammad Bakhshi-Jooybari; Hamid Gorji; Roohollah Jamaati; Jerzy A. Szpunar The present work focused on the effect of the electric current pulse type on the springback, microstructure, texture, and mechanical properties during the V-bending process of AA2024 aluminum alloy...

... 11 02 2020 28 07 2020 28 07 2020 29 09 2020 welding manufacturing numerical model weld pool transport phenomena microstructure distortion residual stress process sensor machine learning deep learning CNN adaptive control model predictive control MPC control...

... to investigate their effects on the microstructures and fracture properties of repaired specimens. J-integrals were calculated according to the digital image correlation (DIC) measurements, and microstructures were examined using scanning electron microscopy (SEM). When suitable laser parameters were used...

...Zifa Xu; Wentai Ouyang; Shaohui Jia; Junke Jiao; Mina Zhang; Wenwu Zhang A laser additive and subtractive hybrid manufacturing technology was proposed to repair Inconel 718 cracks in this paper. Microstructures and the mechanical properties such as the micro-hardness, the tensile strength...

...-phase steel cooling rate microstructure liquid metal embrittlement welding and joining Resistance spot welding (RSW) is extensively used in the automobile industry, and hence, the proper welding schedule is ever-demanding in the actual industrial practice [ 1 ]. However, the complex...

... µ m suspension. Keller's reagent (1 ml HF 1 + 1.5 ml HCl + 2.5 ml HNO 3 + 95 ml H 2 O) was adopted for etching of the aluminum side, and the steel was etched with 4% Nital. An optical microscope, Leica S6D, was used to observe the macrostructure and DM4M for the microstructure of the joint. An SMT...

... for the unprocessed specimens, primary sandwich and first, second, and third cycles of ARB process by ASTM E561 and compact tension (CT) specimens. Also, the microstructure and mechanical properties have been investigated using optical microscopy, scanning electron microscopy, uniaxial tensile tests...

.... Manuf. Technol. , 39 ( 9–10 ), pp. 851 – 865 . 10.1007/s00170-007-1279-2 [2] Munitz , A. , Cotler , C. , Stern , A. , and Kohn , G. , 2001 , “ Mechanical Properties and Microstructure of Gas Tungsten Arc Welded Magnesium AZ91D Plates ,” Mater. Sci. Eng.: A , 302 ( 1 ), pp. 68...