Results 1 to 10 of about 5,236 (204)

Overlap Percentage Effects on Microstructure and Microhardness in Wire Arc Additive Manufacturing of AISI 308L Stainless Steel

MetalMat, EarlyView.
Overlap percentage governs the remelting, dilution, and solidification behavior of CMT‐WAAM AISI 308L stainless steel. Increasing overlap to 50% promotes stronger bead‐to‐bead bonding, wider transition zones, and localized hardness enhancement, with the highest hardness observed in the overlap region due to grain refinement and δ‐ferrite redistribution.
Mojtaba Karamimoghadam, Mohammad Rezayat, Antonio Mateo, Nicola Contuzzi, Giuseppe Casalino   +4 more
wiley   +1 more source

Knowledge‐Constrained Multi‐Objective Reinforcement Learning for Simultaneous Optimization of Printability and Mechanical Properties in Additively Manufactured Superalloys

Materials Genome Engineering Advances, EarlyView.
A knowledge‐constrained multi‐objective reinforcement learning (MORL) framework is proposed, embedding cracking susceptibility as a hard constraint to simultaneously optimize printability and mechanical properties of additively manufactured superalloys.
Pei Liu, Xueting Ren, Shibo Wei, Shuai Guan, Guohao Liu, Teng An, Haiyou Huang, Zhongnan Bi   +7 more
wiley   +1 more source

Effect of welding parameters on bead geometry and microhardness in GMAW: A statistical approach [PDF]

EPJ Web of Conferences
In Gas Metal Arc Welding (GMAW), the quality and performance of the welded joints can be severely affected by the bead geometry and the associated properties of the materials.
Sahare Apurva, Bhaiswar Vinod, Shelke Rupesh, Raut Laukik Purushottam   +3 more
doaj   +1 more source

Multi‐Scale Mechanical Behavior of Additive‐Manufactured 316L Stainless Steel Processed by Severe Plastic Deformation

steel research international, EarlyView.
The multi‐scale mechanical behavior of additive‐manufactured 316L stainless steel processed by directed energy deposition and high‐pressure torsion is explored. The influence of torsional strain on strength and microstructural evolution is revealed, indicating progressive grain refinement in the ultrafine regime, reaching strength levels nearing 1800 ...
M. Farhan Raza, Guney Guven Yapici
wiley   +1 more source

The Influence of Heat Input on the Microstructure and Properties of Wire-Arc-Additive-Manufactured Al-Cu-Sn Alloy Deposits

Metals, 2020
In this experiment, Al-Cu-Sn alloy was used as raw material to form deposits with different heat input using the wire-arc additive manufacturing (WAAM) process.
Shuai Wang, Huimin Gu, Wei Wang, Chengde Li, Lingling Ren, Zhenbiao Wang, Yuchun Zhai, Peihua Ma   +7 more
doaj   +1 more source

Low‐Voltage Pulsed GMA‐AM Application for Controlling Heat Input and Improving Deposition Quality of 309LSi Multilayered Structures

steel research international, EarlyView.
This manuscript presents a study on the effects of parameter control of low‐voltage pulsed‐GMA‐AM application for producing 309LSi multilayered build‐ups, which can simultaneously lead to reduced heat input up to 32.1%, enable pulsed‐spray transfer, provide stable depositing conditions and preserve dimensional consistency, favoring fabrication of a 114‐
Petrônio L. C. C. C. Fernandes, Guilherme G. S. Figueiredo, Ivan B. M. Picchi, Edwar A. T. López, Tiago F. A. Santos   +4 more
wiley   +1 more source

Hybridization in wire arc additive manufacturing

Frontiers in Mechanical Engineering, 2022
Wire Arc Additive Manufacturing (WAAM) can produce a near-net shape of an object within a short period due to its capability of high deposition rate compared with other metal Additive Manufacturing (AM) processes. The recent developments in the WAAM have
Sajan Kapil, Atul Singh Rajput, Ritam Sarma   +2 more
doaj   +1 more source

Lattice‐Defect‐Coordinated Microstructural Continuity and Mechanical Compatibility in LPBF‐Fabricated CoCrNi/316L Bimetallic Structures

Rare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Bimetallic structures fabricated by laser powder bed fusion (LPBF) provide an effective strategy for achieving multifunctional integration, yet interfacial structural continuity and the role of lattice defects remain insufficiently understood.
Jinguo Ge, Shuo Yin
wiley   +1 more source

Effects of ultrasonic rotating extrusion assisted wire arc additive manufacturing on the microstructure and mechanical properties of 5356 aluminum alloy

Ultrasonics Sonochemistry
Wire Arc Additive Manufacturing (WAAM) for the fabrication of lightweight Al alloy represents a burgeoning area of research. Despite this, the presence of porosity defects, coarse surface grain sizes, and the clustering of precipitated phases in WAAM ...
Rongtao Zhu, Liang Zhang, Longhan Duan, Zhaofeng Liang, Chuang Li, Bo Yuan, Peng Du, Zhiwen Xie, Yaping Zhang   +8 more
doaj   +1 more source

Reducing Uncertainty in WAAM Thermal Modeling through Profilometer‐Based Calibration

ce/papers, Volume 9, Issue 2-3, Page 493-498, September 2026.
Abstract Accurate prediction of the Δt8/5 cooling time remains critical in Wire Arc Additive Manufacturing (WAAM) due to its direct influence on microstructural evolutions and resultant mechanical properties. This work presents a calibration framework for a transient thermal finite element model of WAAM using AM70 wire, implemented in Abaqus with a ...
Rahul Joshy, Trayana Tankova, Milan Veljkovic   +2 more
wiley   +1 more source