Results 31 to 40 of about 17,377 (263)

Improving the hot corrosion resistance of precipitation strengthened nickel-based superalloy formed by laser powder bed fusion at 750 °C via tailoring microstructure

Journal of Materials Research and Technology
In this study, the microstructure of spherical γ′ phases and annealing twins was obtained by solid solution and aging treatment in laser powder bed melting forming nickel-based superalloy, and the hot corrosion behavior and hot corrosion mechanism of the
Shuli Hua, Jiayu Xu, Bing Zhen, Peng Tian, Bo Liu, Hongfei Zhang, Yubi Gao, Yutian Ding   +7 more
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source

Active Corrosion Protection of Sintered AA7075 Aluminum Alloy via Mn Powder Addition

Advanced Engineering Materials, EarlyView.
AA7075 containing Mn‐rich particles is fabricated via spark plasma sintering using AA7075 and Mn powders. Corrosion resistance is evaluated through dip‐and‐dry tests using 0.1 M NaCl (pH 6.0), and mass loss decreases with increasing Mn addition. Mn‐rich particles function as a source of Mn ions, and formation of Mn‐accumulation films on Cu‐containing ...
Ko Ebina, Masashi Nishimoto, Izumi Muto
wiley   +1 more source

Oxidation and Hot Corrosion of Superalloys

Superalloys 1984 (Fifth International Symposium), 1984
The oxidation, mixed gas corrosion and hot corrosion of nickel-, cobaltand iron-base superalloys at temperatures above about 6OOC are examined. It is shown that the superalloys develop resistance to corrosion by forming either alumina or chromia scales upon their surfaces.
F.S. Pettit, G.H. Meier
openaire   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Characteristics and hot corrosion behavior of NiCrAlY metal bonding layers prepared by different processes

npj Materials Degradation
The hot corrosion experiments of René N5 alloy coated with three different NiCrAlY metal bonding layers are carried out, that the layers are prepared by different methods (APS, HVAF and MIP).
Weiwei Qu, Zehao Chen, Zhilin Zhang, Xue Li, Fan Yang, Jinlong Wang, Minghui Chen, Shusuo Li, Fuhui Wang   +8 more
doaj   +1 more source

Effect of deformation temperature on microstructure and corrosion properties of hot-compressed 347H stainless steel

Electrochemistry Communications
The corrosion resistance of 347H stainless steel after hot rolling or hot extrusion has always been a focus of attention in the thermoelectric field.
Qiushuang Wang, Ruidong Li, Junchen Li
doaj   +1 more source

Extrusion‐Based Additive Manufacturing of Advanced Ceramics: Strengthening Mechanisms and Process Optimization Review

Advanced Engineering Materials, EarlyView.
This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari, Mohammad Hadi Sheikh‐Ansari, Avinash Borgaonkar, Mehran Dadkhah, Abdollah Saboori   +4 more
wiley   +1 more source

Study on the salt-corrosion and oxidation role mechanism of Ni-based single crystal superalloy in the long-term hot corrosion environment

Journal of Materials Research and Technology
Hot corrosion is one of the key factors affecting the long-term service of Ni-based single crystal superalloys. In this paper, the long-term hot corrosion test of a second-generation Ni-based single crystal superalloy was carried out in a high ...
Y.Q. Yang, L. Yang, Y.C. Zhao, H.Q. Pei, Z.X. Wen, Y.C. Zhou   +5 more
doaj   +1 more source