Results 51 to 60 of about 4,508 (168)

Reverse Engineering and Performance Evaluation of a Pump Impeller Fabricated With Additive Manufacturing

Chemie Ingenieur Technik, EarlyView.
This study explores the process chain for reverse engineering and additive manufacturing of a water pump impeller in a process plant. Key aspects include digital twin creation, CAD redesign, material certification, Hirtisation postprocessing, and performance testing. Insights highlight iterative design for improved precision and reliability.
Michael Stadler, Kati Schatz, Sebastian Rehfeldt, Harald Klein   +3 more
wiley   +1 more source

Analysis of Corrosion and Wall Perforation in the Heat Exchanger Made of AISI 316L Stainless Steel

Materials and Corrosion, EarlyView.
Elevated passivation temperature is identified as the dominant factor triggering localized corrosion and subsequent perforation of AISI 316L heat exchanger tubes. Electrochemical and complementary characterization results show that the alloy retains high resistance to general, pitting, and intergranular corrosion, indicating that failure primarily ...
Bojana Radojković, Bore Jegdić, Branimir Grgur, Stefan Dikić, Jovanka Pejić, Anđela Simović, Nataša Gajić, Aleksandra Popović   +7 more
wiley   +1 more source

Study on the Austenite Grain Growth Behavior of Fe-Mn-Al-C Low-Density Steel Containing Niobium

Metals
To explore the impact of niobium (Nb) addition on the austenitization behavior of Fe-Mn-Al-C lightweight steels, the effects were examined through Thermo-Calc thermodynamic simulations, optical microscopy, transmission electron microscopy (TEM), and the ...
Litu Huo, Tao Ma, Weimin Gao, Yungang Li, Haichao Zhang, Jianxin Gao   +5 more
doaj   +1 more source

Exploring the Difference in Bainite Transformation with Varying the Prior Austenite Grain Size in Low Carbon Steel

Metals, 2018
The simulation welding thermal cycle technique was employed to generate different sizes of prior austenite grains. Dilatometry tests, in situ laser scanning confocal microscopy, and transmission electron microscopy were used to investigate the role of ...
Liangyun Lan, Zhiyuan Chang, Penghui Fan
doaj   +1 more source

Fretting Wear and Corrosion Behavior of the Fe‐35Mn Biodegradable Alloy for Biomedical Applications

Materials and Corrosion, EarlyView.
This study evaluates the corrosion and tribological wear behavior of the Fe‐35Mn alloy, demonstrating superior mechanical stability and a more favorable degradation rate than pure iron, thereby highlighting its potential for biomedical applications. ABSTRACT The biodegradable Fe‐35Mn alloy has emerged as a promising material for temporary implants due ...
Kerolene Barboza da Silva, Caio Pascotti Valem, S. Sudhagara Rajan, Vasanth Gopal, Praveenkumar Kesavan, Roberto Zenhei Nakazato, Geetha Manivasagam, Ana Paula Rosifini Alves   +7 more
wiley   +1 more source

Hydrogen‐Enhanced Stress Corrosion Cracking of Wire Arc Additive Manufactured Inconel 625 Superalloy in NaCl Solution: Mechanism of Synergistic Degradation

Materials and Corrosion, EarlyView.
Hydrogen‐enhanced SCC of WAAM Inconel 625 in 3.5 wt.% NaCl solution. Hydrogen charging reduces passive film stability (lower corrosion potential) and promotes pitting at Laves phase/matrix interfaces. Stress corrosion cracks propagate along Laves‐rich regions, leading to quasi‐cleavage brittle fracture.
Xu Zhang, Jinhong Liu, Gongchen Zhu, Yajie Chu, Dong Wu, Liyi Wang   +5 more
wiley   +1 more source

Phase-field simulation of austenite reversion in a Fe-9.6Ni-7.1Mn (at.%) martensitic steel governed by a coupled diffusional/displacive mechanism

Materials & Design, 2020
Microstructural features of austenite formation, including the growth morphologies and partitioning of alloying elements, during reverse transformation in a Fe-9.6Ni-7.1Mn (at.%) martensitic steel have been studied by phase field modelling with a coupled
Xing Zhang, Gang Shen, Chuanwei Li, Jianfeng Gu   +3 more
doaj   +1 more source

Acoustic Activity of Intergranular Corrosion Sensitized AISI 304L in Double‐Loop Electrochemical Potentiodynamic Reactivation Test

Materials and Corrosion, EarlyView.
Intergranular corrosion of AISI 304L is analyzed, combining DLEPR test and AE. Slow scan rate polarization reveals time‐shifted and frequency‐dependent acoustic emission in the active region of the DLEPR curve, allowing a separation between passive oxide rupture, intergranular corrosion and pitting. ABSTRACT Intergranular corrosion (IGC) susceptibility
Alexander Kreisch, Marcel Mandel, Lutz Krüger   +2 more
wiley   +1 more source

Abnormal growth of austenite grain in continuously cast slab during hot charging processes

Journal of Materials Research and Technology
The hot charging(HC) experiments for 20CrMo steel were carried out based on the temperature history in the plant, and the evolution of austenite grain structure(AGS) was investigated by optical microscope, scanning electron microscope, transmission ...
Peng Lan, Huasong Liu
doaj   +1 more source

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