Article
Materials Science, Multidisciplinary
A. S. Grenadyorov, V. O. Oskirko, A. N. Zakharov, I. M. Goncharenko, V. A. Semenov, S. V. Rabotkin, A. A. Solovyev
Summary: This paper discusses the effect of hydrogen-free active screen plasma nitriding on AISI 316L austenitic stainless steel. The results show that the active screen can form hard diffusion layers at lower temperatures and improve corrosion resistance. However, with longer process time, the corrosion resistance decreases.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Lingze Li, Ruiliang Liu, Quanli Liu, Zhaojie Wu, Xianglong Meng, Yulan Fang
Summary: This study investigates the dependence of the characteristics of nitrided layers on ferritic stainless steel on their initial microstructures. It was found that ferritic stainless steel with a solid solution and annealing treatment showed the best performance after low-temperature plasma nitriding. The nitrided layer thickness and hardness significantly increased, and the wear and corrosion resistance of the nitrided layer were improved.
Article
Chemistry, Physical
Alice O. Mateescu, Gheorghe Mateescu, Adriana Balan, Catalin Ceaus, Ioan Stamatin, Daniel Cristea, Cornel Samoila, Doru Ursutiu
Summary: The study shows improved mechanical, wear, and protective properties of AISI 304 stainless steel surfaces through open atmosphere cold plasma treatment. Significant modifications in surface morphology, corrosion resistance, and mechanical performance were observed for N-2 treated surfaces. The coefficient of friction is lower, and wear behavior is significantly improved with longer cold plasma nitriding processes.
Article
Materials Science, Coatings & Films
Zhen Huang, Zi-Xin Guo, Lei Liu, Yuan-Yuan Guo, Jun Chen, Ze Zhang, Jin-Long Li, Yan Li, Yan-Wen Zhou, Ying-Shuang Liang
Summary: Nitriding of AISI 316L austenitic stainless steel under various pulsed bias conditions resulted in different phase structures, thicknesses, and hardness of the nitrided layer, which in turn affected the corrosion resistance of the material.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Nuclear Science & Technology
Akash Singh, R. Thirumurugesan, S. Krishnakumar, Revati Rani, S. Chandramouli, P. Parameswaran, R. Mythili
Summary: Enhancement of wear resistance of components used in fast reactors is necessary for long service life. Plasma nitriding is a promising technology to improve hardness and wear resistance. This study characterizes the chrome nitrided SS316L casing ring used in secondary sodium pump and assesses its stability under long term sodium exposure. The results show successful chrome nitriding and retention of the nitrided layer after sodium exposure, although there is a slight decrease in hardness.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2023)
Article
Engineering, Mechanical
M. Naeem, J. C. Diaz-Guillen, Ayesha Khalid, I Guzman-Flores, R. Munoz-Arroyo, Javed Iqbal, R. R. M. Sousa
Summary: In this study, high-temperature plasma nitriding was used to improve the surface hardness and wear resistance of AISI-1045 steel. Post-oxidation treatment was applied to the nitrided samples to investigate its effect. The results showed that the nitrided sample had a white layer, while post-oxidation transformed it into hematite and magnetite phases. The hardness of the nitrided samples significantly increased, although post-oxidation caused a slight decrease. The thickness of the nitrided layer and oxide layer increased with post-oxidation treatment. The nitrided sample exhibited abrasive wear, while the post-oxidized sample showed outstanding wear resistance with an adhesive wear mechanism.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Multidisciplinary Sciences
M. Godec, B. Podgornik, A. Kocijan, C. Donik, D. A. Skobir Balantic
Summary: The study aims to investigate the properties of plasma-nitrided 18Ni-300 maraging steel and the influence of heat treatment on this process. The results show that prior heat treatment can enhance the performance of maraging steel after nitriding.
SCIENTIFIC REPORTS
(2021)
Article
Materials Science, Coatings & Films
Oriana Palma Calabokis, Yamid Nunez de la Rosa, Carlos M. Lepienski, Rodrigo Perito Cardoso, Paulo Cesar Borges
Summary: Nitriding treatment on UNS 532750 super duplex stainless steel improved hardness, general corrosion resistance, passive layer breakdown potential, and crevice corrosion resistance. Nitrogen played a crucial role in the passivation behavior and susceptibility to repassivation of localized corrosion.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Shinichiro Adachi, Takuto Yamaguchi, Nobuhiro Ueda
Summary: Stainless steel-based WC composite layers fabricated by a laser cladding technique exhibit strong mechanical strength, but their wear and corrosion resistance need improvement. Low-temperature plasma nitriding and carburizing can produce a supersaturated solid solution known as the S-phase, enhancing hardness and corrosion resistance.
Article
Materials Science, Coatings & Films
M. Naeem, Madiha Qadeer, Zaka-ul-islam Mujahid, N. U. Rehman, J. C. Diaz-Guillen, R. R. M. Sousa, M. Shaftq
Summary: Cathodic cage plasma nitriding (CCPN) is an efficient technique to improve the surface properties of materials. Pulsed voltage sources are usually used to control the nitrided layer and the discharge transition. Time-resolved plasma diagnostics are important for monitoring plasma parameters, but their fundamental diagnostics are limited.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Yangyang Lu, Dong Li, Heng Ma, Xiliang Liu, Meihong Wu, Jing Hu
Summary: The research shows that severe plastic deformation can significantly enhance the efficiency of plasma nitriding, increase the thickness and hardness of the nitriding layer, and greatly improve the wear resistance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Multidisciplinary
Hugo Perez, Gregorio Vargas, Coraquetzali Magdaleno, Rodolfo Silva
Summary: AISI 304 SS has good corrosion resistance but poor wear resistance. Oxy-nitriding in plasma electrolytic conditions using urea solutions can significantly increase wear resistance. A concentration of 20% urea in the electrolyte is considered sufficient for a threefold increase in wear resistance.
Article
Materials Science, Ceramics
M. Naeem, Shabana Awan, M. Shafiq, H. A. Raza, Javed Iqbal, J. C. Diaz-Guillen, R. R. M. Sousa, Mohsan Jelani, M. Abrar
Summary: The study aims to improve the surface properties of AISI-304 austenite stainless steel by combining cathodic cage plasma nitriding (CCPN) and PVD-TiN treatments, which significantly enhances hardness, wear resistance, and corrosion resistance.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Darko Landek, Marin Kurtela, Ivan Stojanovic, Jurica Jacan, Suzana Jakovljevic
Summary: This paper investigates the effects of DC plasma nitriding on the properties of AISI 316L Austenitic Stainless steel. The study finds that longer nitriding times result in increased surface roughness and hardness, but exceeding 8 hours of nitriding leads to reduced wear resistance. Additionally, the nitrided samples exhibit lower corrosion resistance compared to the untreated samples.
Article
Chemistry, Physical
Yanjie Liu, Daoxin Liu, Xiaohua Zhang, Wenfeng Li, Amin Ma, Kaifa Fan, Wanzi Xing
Summary: This study investigated the effects of different alloying elements, nitriding temperatures and time on the properties of martensitic precipitation hardening stainless steel. The results showed that molybdenum-containing stainless steel had higher stability and corrosion resistance, while the corrosion resistance of the nitrided stainless steel decreased significantly.
Article
Physics, Applied
Zakaulislam Mujahid, Mohammed D. Y. Oteef, Xin Tu, Julian Schulze
Summary: This study qualitatively investigated the influence of applied voltage on the locations of chemical reactions in packed-bed plasma reactors. By using regularly arranged hemispherical pellets and a transparent electrode, the plasma generation within the voids became optically accessible, revealing that the distribution of plasma emission changes with the applied voltage amplitude. The analysis suggested that short-living species like energetic electrons and radicals might play an essential role in the formation of deposited chemicals on the glass beads.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
N. Ullah, M. Naeem, M. Shafiq, Z. Mujahid, J. C. Diaz-Guillen, C. M. Lopez-Badillo, M. Zakaullah
Summary: This study investigated the influence of methane concentration on the surface properties of nitrocarburized AISI-304, revealing that methane addition can improve load-bearing capacity and have an impact on the XRD pattern, thickness of N-enriched and C-enriched layers. Additionally, the corrosion rate also exhibited a non-monotonic response to the methane fraction.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Engineering, Electrical & Electronic
M. Shafique, Tariq Iqbal, Hasan Mahmood, M. A. Khan, Muhammad Naeem, Ishaq Ahmed, Pervaiz Ahmad
Summary: NiCo2O4/NiO nanocomposites were synthesized via atmospheric pressure microplasma electrochemical method, and the influence of surfactants on the morphology and properties of the nanostructures was studied. Different morphologies like nanorods, nanowires, and nanoflowers were obtained from SEM analysis, and X-ray diffraction analysis revealed the structural properties and crystallite size dependence on surfactants used. Photoluminescence study showed band edge emission and additional visible region emission due to defects, while Raman and FTIR spectroscopy were used to examine the functional characteristics of the nanostructures. Furthermore, the photocatalytic activity of these nanostructures in Rhodamine B dye solution under sunlight was investigated, showing effective decolorization with both visible light and photocatalyst.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
W. Nogueira Junior, M. Naeem, T. H. C. Costa, J. C. Diaz-Guillen, M. R. Diaz-Guillen, Javed Iqbal, Mohsan Jelani, R. R. M. Sousa
Summary: The ZnO film synthesized using the CCPD technique can effectively enhance the wear resistance of steels, change the wear mechanism, and optimize surface hardness. The gas composition significantly affects the film properties, where an increase in hydrogen content reduces film thickness.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Physics, Condensed Matter
J. C. A. Queiroz, M. Naeem, I. A. Sousa, M. S. Liborio, E. J. C. Santos, R. R. M. Sousa, I. O. Nascimento, M. C. Feitor, T. H. C. Costa, Javed Iqbal
Summary: Transparent conducting oxides (TCO), such as ZnO/Zn2TiO4/ZnAl2O4 composite films, are important for optoelectronic applications. This study used DC magnetron sputtering with ceramic target material to fabricate composite films and evaluated the effects of processing gases composition on film characteristics. The results showed that oxygen addition influenced the structural, optical, and electronic properties of the films.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Chemistry, Physical
Uzair Ahmed, Mohsan Jelani, Najam Ul Hassan, Muhammad Naeem, Tahir Zaman, Shahbaz Ahmad
Summary: This study investigates the cluster dynamics of gold and copper ions in a low energy range through bombardment of gold and copper targets with low energy cesium ions. The results show that the sputtering behavior of copper remains constant, while the cluster sputtering probability of gold clusters slightly increases with an increase in incident ion energy.
SURFACE REVIEW AND LETTERS
(2022)
Article
Materials Science, Ceramics
M. Naeem, Shabana Awan, M. Shafiq, H. A. Raza, Javed Iqbal, J. C. Diaz-Guillen, R. R. M. Sousa, Mohsan Jelani, M. Abrar
Summary: The study aims to improve the surface properties of AISI-304 austenite stainless steel by combining cathodic cage plasma nitriding (CCPN) and PVD-TiN treatments, which significantly enhances hardness, wear resistance, and corrosion resistance.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Armystron G. F. Araujo, M. Naeem, Luciane N. M. Araujo, Maxwell S. Liborio, Miguel R. Danelon, Renan M. Moncao, Luciana S. Rossino, Michelle C. Feitor, Rubens M. do Nascimento, Thercio H. C. Costa, Romulo R. M. Sousa
Summary: The study aimed to enhance the hardness and wear resistance of AISI 5160 steel by performing plasma nitriding with Hastelloy's cathodic cage followed by conventional plasma nitriding. The treated samples and cutting tools showed improved wear resistance compared to untreated samples and high-speed steel tools.
MATERIALS SCIENCE AND TECHNOLOGY
(2022)
Article
Physics, Multidisciplinary
I. O. Nascimento, M. Naeem, R. S. Freitas, R. M. Nascimento, B. C. Viana, R. R. M. Sousa, M. C. Feitor, Javed Iqbal, T. H. C. Costa
Summary: This study compares the structural and stoichiometric properties of titanium nitride films deposited by CCPD and MS, finding that MS is more suitable for high stoichiometry films, while CCPD is better for applications requiring mechanical properties and decorative coatings.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Materials Science, Multidisciplinary
Luiz Henrique Portela de Abreu, Muhammad Naeem, Renan Matos Moncao, Thercio H. C. Costa, Juan C. Diaz-Guillen, Javed Iqbal, Romulo Ribeiro Magalhaes Sousa
Summary: This study combines conventional plasma nitriding and cathodic cage plasma deposition to enhance the surface properties of AISI-M2 steel. The combination effectively improves surface hardness and creates a favorable hardness gradient towards the core, benefiting load-bearing capacity. Duplex-treated samples exhibit iron nitrides and titanium nitride phases. The wear rate and friction coefficient are significantly reduced, and oxidative wear and adhesive wear mechanisms dominate.
Article
Construction & Building Technology
M. Naeem, A. V. R. Torres, P. L. C. Serra, R. M. Moncao, C. A. Antonia Junior, L. S. Rossino, T. H. C. Costa, C. L. S. C. Costa, Javed Iqbal, R. R. M. Sousa
Summary: This study investigates the improvement of surface properties of AISI-1045 steel through the combination of cathodic cage plasma nitriding and conventional plasma nitriding, which involves the deposition of alloying elements and subsequent nitrogen diffusion to enhance coating adhesion and hardness gradient formation. The results show significant enhancement in hardness and wear resistance, making this duplex treatment method effective for industrial applications.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Engineering, Mechanical
M. Naeem, J. C. Diaz-Guillen, Ayesha Khalid, I Guzman-Flores, R. Munoz-Arroyo, Javed Iqbal, R. R. M. Sousa
Summary: In this study, high-temperature plasma nitriding was used to improve the surface hardness and wear resistance of AISI-1045 steel. Post-oxidation treatment was applied to the nitrided samples to investigate its effect. The results showed that the nitrided sample had a white layer, while post-oxidation transformed it into hematite and magnetite phases. The hardness of the nitrided samples significantly increased, although post-oxidation caused a slight decrease. The thickness of the nitrided layer and oxide layer increased with post-oxidation treatment. The nitrided sample exhibited abrasive wear, while the post-oxidized sample showed outstanding wear resistance with an adhesive wear mechanism.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
J. F. M. Neto, M. Naeem, T. H. C. Costa, L. L. F. Lima, R. R. M. Sousa, M. C. Feitor, M. S. Liborio, R. M. Nascimento
Summary: In this study, a modified cathodic cage plasma deposition (CCPD) system was used to synthesize a Ti-Nb-C-N-based composite coating on AISI-4340 steel. The composite coating exhibits enhanced hardness and wear resistance due to its effective bioactivity. By inserting composite material rings on the lid of the cathodic cage, the novel CCPD system allows for the deposition of composite coatings. The results show that the modified CCPD system can improve the hardness and wear resistance of AISI-4340 steel by synthesizing the composite coating.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
M. Shafique, Tariq Iqbal, M. A. Khan, Muhammad Naeem, Ishaq Ahmed, Pervaiz Ahmad, Hasan Mahmood
Summary: This study presents a facile method for the atmospheric pressure microplasma-assisted synthesis of NiCo2O4 nanocomposite with cubic spinel phase. The prepared samples were analyzed for their structural, morphological, compositional, electrical, and optical properties, revealing potential catalytic activity and semiconductor behavior. The study also showed significant degradation of rhodamine B dye aqueous solution under solar irradiation, highlighting the potential applications in wastewater purification and energy storage nanodevices based on NiCo2O4 nanostructures.
JOURNAL OF ELECTRONIC MATERIALS
(2021)