Results 71 to 80 of about 7,618 (233)

Corrosion Rate and Stress Corrosion Cracking Susceptibility of Copper in the Presence of Sulfides

Materials and Corrosion, EarlyView.
This study investigates copper corrosion behavior and stress corrosion cracking (SCC) susceptibility using immersion, U‑bend, and slow strain rate tests in sulfide‑containing synthetic seawater exposed to H2S/N2 mixed gas, with varying H2S gas fraction, focusing on long‐term corrosion performance and SCC susceptibility relevant to bentonite‐buffered ...
Shingo Watari, Ayami Kitayama, Seiichiro Mitsui, Naoki Taniguchi, Wataru Kimura, Hiroshi Kajiyama, Hiroyuki Suzuki   +6 more
wiley   +1 more source

Metallographic Analysis of Nakajima Tests for the Evaluation of the Failure Developments

Procedia Engineering, 2017
Abstract The material characterisation in sheet metal forming is significantly improved with the introduction of optical measurement systems. The optical measurement is based on the digital image correlation (DIC) technique, which provides accurate strain measurement of the local strain distribution on specimens.
Affronti Emanuela, Merklein Marion
openaire   +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

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

HawkEye: AI-Driven Software for Objective Analysis and Characterization of Nodular Cast Iron Microstructures

Applied Sciences
Metallographic evaluation of nodular cast iron is crucial for quality control in the foundry industry. Traditionally, this process relies on experts who visually interpret microscopic images.
Javier Nieves, Antonio Serena-Barriuso, Guillermo Elejoste-Rementeria   +2 more
doaj   +1 more source

Tailoring Laser Powder Bed Fusion and Post‐Processing Parameters for JIS SKD61 Tool Steels: Surface Roughness, Microstructure, and Mechanical Properties

steel research international, EarlyView.
Laser powder bed fusion of JIS SKD61 tool steel is systematically optimized using a Taguchi design and ANOVA. Hatch spacing and layer thickness are identified as dominant parameters controlling surface roughness and tensile strength. Subsequent tempering at 600°C improves microstructural stability and mechanical performance, enabling high‐density SKD61
Masrurotin Masrurotin, Andi Ard Maidhah, Maziar Ramezani, Wojciech Macek, Cho‐Pei Jiang   +4 more
wiley   +1 more source

Research on Influential Mechanism of HAZ Impact Toughness for Shipbuilding Steel with Mg Addition

Metals, 2018
The welding performance of shipbuilding steel under large heat input could be improved greatly by the addition of Mg to the steel, but the impact toughness of the heat affect zone (HAZ) is not stable.
Hui-rong Li, Li-gen Sun, Li-guang Zhu, Yun-song Liu, Yun-gang Li   +4 more
doaj   +1 more source

Limitation Analysis of Electrical Fire Metallographic Identification Technology

Procedia Engineering, 2013
AbstractReview of the principle of electrical ignition causes and identification technology in this paper. Primary or secondary short circuited melted marks could be identified in actual fire cases to a certain extent. Respecting complicated external environment, standard metallographic identification technology is not available for all melted marks ...
Wang, Yue, Mo, Shan-jun, Liang, Dong, Yang, Wen-bing, Wang, Li, Zheng, Fang-jie   +5 more
openaire   +1 more source

Microstructure Characterization of Bending Effects in 304L Stainless Steel Cladded with Low‐Alloy Steel Weld

steel research international, EarlyView.
Prebending of 304L/Q345R cladded plates significantly alters the subsequent weld thermal cycle and modifies the local interfacial microstructure. Combined electron backscatter diffraction (EBSD) and microscopy analysis demonstrates that deformation twinning, martensitic transformation, and defect initiation are concentrated at the trimaterial junction,
Ali Fahem, Elsiddig Elmukashfi, Hong Dong   +2 more
wiley   +1 more source

Refinement of Techniques Metallographic Analysis of Highly Dispersed Structures

Journal of Physics: Conference Series, 2016
Flaws are regularly made while developing standards and technical specifications. They can come out as minor misprints, as an insufficient description of a technique. In spite the fact that the flaws are well known, it does not come to the stage of introducing changes to standards.
Khammatov, Aleksandr Nail'evich, Belkin, Denis Sergeevich, Barbina, Nina Vladimirovna   +2 more
openaire   +2 more sources