Results 41 to 50 of about 8,764 (253)

Stress Corrosion Cracking Failure Analysis and Countermeasures for Preheater Joints in Bayer Liquor Environments [PDF]

Cailiao Baohu
To investigate the leakage failure of a welded joint in a preheater unit of a certain alumina plant，macroscopic inspection，chemical composition analysis，mechanical property testing，metallographic examination，scanning electron microscopy(SEM) and energy ...
LI Yongjun, LI Zhigang, FENG Zongjian, MO Qianci, WEI Yuwei, LAN Jiahong
doaj   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Influence of Si Content and Milling Duration on the Microstructure and Mechanical–Tribological Properties of AlCoCrFeNiSi High‐Entropy Alloys

Advanced Engineering Materials, EarlyView.
Si‐doped AlCoCrFeNi high‐entropy alloys are synthesized by mechanical alloying to reveal the effect of Si content and milling time on phase evolution, microstructural refinement, and tribological behavior. A transition from FCC to BCC structure, significant grain refinement, and enhanced hardness and wear resistance are achieved, with the 4 at% Si ...
Mustafa Okumuş, Mehmet Emin Demir, Sercan Özpınar   +2 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

Electrochemical noise evaluation and data statistical analysis of stressed aluminium alloy in NaCl solution

Alexandria Engineering Journal, 2018
Electrochemical noise evaluation and statistical analysis during stress corrosion cracking (SCC) of aluminium alloy 7075-T6 has been investigated in 3.5% NaCl solution under free corrosion potential.
Cleophas A. Loto
doaj   +1 more source

Defect Evolution and Mechanical Performance of Fused Filament Fabrication‐Manufactured 17‐4PH Stainless Steel Revealed by X‐Ray Computed Tomography

Advanced Engineering Materials, EarlyView.
X‐ray computed tomography reveals how process‐induced defects evolve from green to sintered states in Fused Filament Fabrication (FFF)‐manufactured 17‐4PH stainless steel. Internal porosity, weakest cross‐sections, and fracture locations show strong correlation with tensile performance, demonstrating the potential of computed tomography (CT)‐based ...
György Ledniczky, Márk Sárközi, Ibolya Zsoldos, Zoltán Weltsch   +3 more
wiley   +1 more source

Synergistic effects of CO2 and H2S on stress corrosion cracking of stainless steel 254SMo in extremely aggressive oilfield environment

Corrosion Communications
Synergistic effects of CO2 and H2S on stress corrosion cracking of stainless steel 254 SMo in extremely aggressive oilfield environments were explored through experiments and water chemistry modelling calculations.
Song Meng, Penghui Yue, Shucai Zhang, Huabing Li, Yang Zhao, Yong Hua, Tao Zhang, Fuhui Wang   +7 more
doaj   +1 more source

Investigation of Stress Corrosion Cracking Behaviour of Mg-Al-Zn Alloys in Different pH Environments by SSRT Method

Open Chemistry, 2019
In this study, stress corrosion behaviors of AZ31, AZ61 and AZ91 Mg alloys which contain different amounts of Al were investigated under acidic, basic and neutral environments having chloride ions using Slow Strain Rate Test (SSRT) method.
Catar Recep, Altun Hikmet
doaj   +1 more source

Research Progress of Concrete Structure Cracking Caused by Non-Uniform Corrosion of Steel Bars [PDF]

Cailiao Baohu
In the service life of reinforced concrete structures，the corrosive medium enters the concrete and causes the corrosion of steel bars，and the corrosion products produce compressive stress on the surrounding concrete due to the volume expansion.This ...
YANG Jianjun, LIANG Chuan, ZHANG Li, ZHENG Shansuo
doaj   +1 more source

Electrified Damage in Motion Systems

Advanced Engineering Materials, EarlyView.
The electrified damage in motion systems is a fundamental framework presenting the degradation pathway arising from the coupling of electrical energy transport with mechanical contact and interfacial chemistry. The framework positions electrified damage as a distinct degradation regime with unique characteristic surface morphologies and failures of ...
M. Humaun Kabir, Angelina Nguyen, Hong Liang   +2 more
wiley   +1 more source