Article
Materials Science, Multidisciplinary
Lucien Reclaru, Lavinia Cosmina Ardelean
Summary: Austenitic steels such as 304, 304L, or 316L are commonly used in the manufacturing of hypotubes for coronary applications, but are susceptible to corrosion. Passivation is essential to protect against corrosion. The study evaluated the passivation state and corrosion resistance using electrochemical methods and specific intergranular corrosion tests, showing that the hypotubes did not exhibit intergranular corrosion in the interior.
Article
Materials Science, Multidisciplinary
Ju-Chan Jin, Soochul Cho, Kihyuk Kim, Hoseop Sim, Byung Gyu Park, Young-Kook Lee
Summary: This study compared the microstructures and intergranular corrosion resistances of two stainless steel clad plates (STS 316L/A516-70N and STS 304L/A516-70N) fabricated without Ni interlayers using the same hot rolling and normalizing conditions. It was found that the thickness of the grain-boundary carburized layer was thinner in STS 316L due to Mo atoms segregated at the grain boundaries. Both stainless steels had carbides on their free surfaces, and STS 304L also had some amount of d ferrite. However, the corrosion resistance of the free surfaces of both stainless steels was not compromised.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Minsung Hong, Ho Lun Chan, Yujun Xie, Elena Romanovskaia, John R. Scully, Peter Hosemann
Summary: The study investigated the effect of Te concentration in molten FLiNaK salt on the corrosion and mechanical properties of 304 stainless steel. The corrosion depth of samples decreased with increasing Te concentration after 48 h immersion at 600 degrees Celsius. Additionally, the 1.0 wt% Te sample showed less reduction in mechanical properties compared to the 0.1 wt% Te sample. It is hypothesized that a protective Cr-oxide layer is formed beneath the Ni-Fe rich layer formed by selective leaching of Cr.
Article
Materials Science, Multidisciplinary
Manlang Cheng, Pei He, Longlin Lei, Xin Tan, Xiangyu Wang, Yangting Sun, Jin Li, Yiming Jiang
Summary: Welding has a detrimental effect on the corrosion resistance of both 304 and newly developed steel QN1803. This is mainly attributable to element segregation and decreased pitting corrosion resistance in the fusion zone (FZ) of QN1803 compared to 304.
Article
Engineering, Mechanical
Menghao Liu, Zhuoyan Ni, Cuiwei Du, Zhiyong Liu, Meihui Sun, Endian Fan, Qiuyu Wang, Xiaojia Yang, Xiaogang Li
Summary: The investigation revealed that the failure of a heavily cracked geothermal water convection tube was caused by stress corrosion cracking induced by chloride in the service environment and sensitization of the matrix. Additionally, residual stress arising from the manufacturing process also promoted the failure process.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Materials Science, Multidisciplinary
Santosh K. Gupta, Awanikumar P. Patil, Ramesh C. Rathod, Vipin Tandon, Aman Gupta, Jitendra Chavhan
Summary: In this study, gas tungsten arc welding (GTAW) was used to join Ti-stabilized 439 ferritic stainless steel (FSS) with different austenitic stainless steels (ASSs) filler electrodes. The microstructure analysis showed the presence of different forms of austenite in the weld zone (WZ) of the filler electrode weldments. No intermetallic phases were observed in the WZ, except for austenite and ferrite. X-ray diffraction (XRD) and electron backscattered diffraction (EBSD) techniques were used to determine the volumetric fractions of austenite and ferrite in the WZ. The study also found that the 309 L filler electrode weldment exhibited higher micro-hardness, ultimate tensile strength, and lower intergranular corrosion resistance compared to the 308 L condition.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
R. Silva, C. L. Kugelmeier, G. S. Vacchi, C. B. Martins Junior, I Dainezi, C. R. M. Afonso, A. A. Mendes Filho, C. A. D. Rovere
Summary: The study found that Cr carbide and nitride precipitation occur in LDSS 2404 at 475 degrees C, but the main cause of Cr depletion and loss of pitting resistance is spinodal decomposition.
Article
Materials Science, Multidisciplinary
Khashayar Morshed-Behbahani, Pooria Najafisayar, Nika Zakerin, Mahmoud Pakshir
Summary: The study revealed that the sensitivity of AISI 410 stainless steel to intergranular corrosion (IGC) was affected by sensitization heat treatment, with longer tempering time leading to more severe localized attack but also a healing effect. Additionally, electrochemical noise and potentiodynamic electrochemical impedance spectroscopy are useful techniques for investigating the corrosion susceptibility of the alloy.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Optics
Weizhe Du, Jiejie Xu, Rongshi Xiao, Ting Huang
Summary: Laser micro-welding is different from macro-welding due to smaller weld dimensions. Research on the influence of welding modes on microstructure and corrosion resistance is lacking. This study uses a single-mode fiber laser to weld stainless steel foils, and identifies two welding modes: thermal conduction welding and penetration welding. The transient phase of laser-material interaction is caused by oxidation during penetration welding, while gas protection eliminates this phase. The conduction weld exhibits better corrosion resistance due to different heat transfer behavior compared to the penetration weld.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
M. Dehghanpour, M. Naghizadeh, R. Karimihaghighi, M. H. Moayed
Summary: The degree of sensitization (DOS) of an aged 2205 duplex stainless steel preannealed at different solution temperatures was investigated. The sample preannealed at 1,250??C showed a lower DOS compared to the samples preannealed at 1,050??C and 1,150??C. However, the increase in DOS was more significant in the 1,250??C preannealed sample after longer aging at 850??C. A correlation between DOS and the volume fraction of the sigma phase was observed.
Article
Automation & Control Systems
Dongting Wu, Qi An, Fuxin Du, Kenji Matsuda, Yingwen Tang, Yong Zou
Summary: The study explores the application of BC-TWIAW in arc additive manufacturing of 18-8 stainless steel, finding improved droplet transfer stability and corrosion resistance. Compared to conventional MIG welding arc additive manufacturing, BC-TWIAW can increase efficiency by over 30%.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Adnane ElJersifi, Meriem Ben Ali, Khadija El Maalam, Abdelouahed Chbihi, Khalil Aouadi, Khalid Ouzaouit, Sanae Naamane
Summary: In this study, the failure of a stainless steel component used in a hydrometallurgy plant's leaching reactor agitator was examined. The sample underwent various tests, including characterization of alloy composition, analysis of the work environment, and microscopic observation of the sample's surface and cross-section. It was found that the alloy had higher carbon content and lower nickel content than specified, which negatively affected its corrosion resistance. The working environment analysis revealed high concentrations of chlorides and sulfates, rendering even the specified alloy insufficiently corrosion resistant, particularly at a temperature of 90 degrees C. Microscopic examination identified intergranular corrosion and stress corrosion cracking as the primary failure mechanisms, with the presence of multiple CaSO4 inclusions accelerating the latter and allowing corrosive agents to penetrate the material.
ENGINEERING FAILURE ANALYSIS
(2023)
Article
Metallurgy & Metallurgical Engineering
Bo Cheng, Dong-jiang Wu, Chao Zhang, Dong-sheng Chai, Guang-yi Ma
Summary: The study on laser welding Ni-based alloy and 304 stainless steel reveals that the transformation of secondary phase will increase susceptibility to intergranular corrosion, therefore efforts should be made to avoid this transformation during the welding process.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2021)
Article
Metallurgy & Metallurgical Engineering
Ping Deng, En-Hou Han, Qunjia Peng, Chen Sun
Summary: The corrosion behavior and mechanism of irradiated 304 nuclear grade stainless steel in simulated pressurized water reactor primary water were investigated. It was found that the corrosion rates of the steel increased with irradiation dose, accompanied by the evolution of oxide formation. The correlation between oxide evolution, corrosion kinetics, and mechanism was discussed.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2021)
Article
Materials Science, Multidisciplinary
D. Liang, J. Hure, A. Courcelle, S. El Shawish, B. Tanguy
Summary: This study investigates the micromechanical analysis of irradiated austenitic stainless steel to assess local cracking conditions and crack initiation criteria. Statistical analysis and micromechanical simulations show that cracking tends to occur for grain boundary normals aligned with the mechanical loading axis. The strengths and weaknesses of this micromechanical approach are discussed based on the correlation between experimental and simulated results.
Article
Materials Science, Multidisciplinary
Soon-Hyeok Jeon, Do Haeng Hur, Hye-Jin Kim, Yong-Soo Park
Article
Materials Science, Multidisciplinary
Hye-Jin Kim, Soon-Hyeok Jeon, Soon-Tae Kim, Yong-Soo Park
Article
Materials Science, Multidisciplinary
Soon-Hyeok Jeon, Hye-Jin Kim, Kyeong-Ho Kong, Yong-Soo Park
MATERIALS TRANSACTIONS
(2015)
Article
Chemistry, Physical
Hye-Jin Kim, Soon-Hyeok Jeon, Won-Seog Yang, Byung-Gil Yoo, Yoo-Dong Chung, Heon-Young Ha, Hyun-Young Chung
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Materials Science, Multidisciplinary
Soon-Hyeok Jeon, Hye-Jin Kim, Yong-Soo Park
Article
Materials Science, Multidisciplinary
Soon-Hyeok Jeon, Do Haeng Hur, Hye-Jin Kim, Yong-Soo Park
MATERIALS TRANSACTIONS
(2014)
Article
Materials Science, Multidisciplinary
Hye-Jin Kim, Hyun-Yeong Jung, Tae-Woo Kwon, Yoo-Dong Chung
MATERIALS TRANSACTIONS
(2019)
Article
Materials Science, Multidisciplinary
Hye-Jin Kim, Hyeong-Kwon Park, Chang-Wook Lee, Byung-Gil Yoo, Hyun-Yeong Jung
Article
Materials Science, Coatings & Films
Wonseog Yang, Eunhye Hwang, Hyejin Kim, Seungho Ahn, Sungjin Kim, Homero Castaneda
SURFACE & COATINGS TECHNOLOGY
(2019)
Article
Materials Science, Multidisciplinary
Hye-Jin Kim
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
Tak Min Park, Hye-Jin Kim, Ho Yong Um, Nam Hoon Goo, Jeongho Han
MATERIALS CHARACTERIZATION
(2020)
Article
Materials Science, Multidisciplinary
Hye-Jin Kim, Hidetoshi Fujii, Seung-Joon Lee
Article
Chemistry, Physical
Hye-Jin Kim, Hyun-Yeong Jung, Seung-Pill Jung, Ji-Hee Son, Joo-Sik Hyun, Ju-Sung Kim
Summary: The research mainly focused on diffusible hydrogen in aluminum-silicon-coated hot-stamped boron steel and in the pre-treatment sequential lines of the automotive manufacturing process. Findings showed that during the hot stamping process, as soaking time increased in the heating furnace, the absorption of hydrogen in hot-stamped boron steel also increased.
Article
Materials Science, Multidisciplinary
Hye-Jin Kim, Geonjin Shin, Jinheung Park, Myoung-Gyu Lee, Ki-Jung Kim, Seung-Chae Yoon
Summary: This study investigates the fracture behavior of plastically deformed quenching and partitioning (Q&P) steel under hydrogen conditions. The experimental results show that the elongation decreases significantly with an increase in hydrogen traps induced by pre-strains. The effect of prestrain on hydrogen susceptibility is analyzed through fractography and microstructure measurements. The findings provide insights into a new metallurgical design for improving the resistance to hydrogen embrittlement in Q&P steel.
Article
Materials Science, Multidisciplinary
Hye-Jin Kim, Myoung-Gyu Lee, Seung-Chae Yoon, Flavien Vucko, Chang-wook Lee, Dominique Theirry, Sung-Ju Kim
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2020)
Article
Materials Science, Multidisciplinary
Zhichao Shang, Xiaoping Cai, Farshid Pahlevani, Yan Zheng, Akbar Hojjati-Najafabadi, Xinran Gao, Baojing Zhang, Peizhong Feng
Summary: High porosity Co-Al-Fe intermetallics with 3D-microstructures were successfully synthesized in one step via a thermal explosion reaction. The link between pore structure and permeability was investigated using 3D-XRM technology. The corrosion resistance of the samples with different Fe contents was studied at 900 degrees C under an oxygen/sulphur atmosphere for up to 120 h. The results showed that the samples maintained stable pore structure and intact internal matrices, attributed to the formation of a thin protective layer on the surface. In addition, inward diffusion of S resulted in the formation of FeS nodules.
Article
Materials Science, Multidisciplinary
Lian Ma, Hain Yang, Daquan Zhang, Wei Wu
Summary: In this study, an environmentally friendly volatile corrosion inhibitor, lysine salts (LA), was prepared between graphene oxide (GO) layers using an in situ intercalation technique. The corrosion inhibition effect of LA was evaluated, and it was found that LA-GO2 achieved a 99.3% corrosion inhibition efficiency after composition optimization. The inhibition of the electrochemical anodic process on the surface of mild steel was the main reason for the high corrosion inhibition efficiency of LA-GO2. The properties of the surface film on the corroded steel were also characterized in detail to understand the corrosion inhibition mechanism of LA-GO2.
Article
Materials Science, Multidisciplinary
Running Wang, Jiaping Zhang, Bing Liu, Jie Fei, Qiangang Fu
Summary: By introducing a tailored SiC-C interphase, the carbon fiber can be effectively protected, improving the mechanical and ablation properties of leading edge shaped C/C-ZrC-SiC composites.
Article
Materials Science, Multidisciplinary
Zihua Wang, Chijia Wang, Ruitao Wang, Jiapeng Deng, Kun Zhang, Yanji Zhu, Huaiyuan Wang
Summary: A robust anti-corrosive coating has been developed using functional fly ash, which demonstrates excellent corrosion resistance and improved mechanical properties. The coating achieves these enhancements through molecular cross-linking design and surface augmentation techniques, resulting in a significantly improved impedance modulus compared to pure polyurea coatings.
Article
Materials Science, Multidisciplinary
Haofei Sun, Meifeng Li, Hao Zhang, Jing Liu
Summary: The oxidation behavior of FeCrNi medium entropy alloy was investigated through experimental observations and density functional theory (DFT) calculations. The study found that at 900 degrees C, the alloy forms a desirable and continuous oxide layer, while at 1000 degrees C, the oxide layer becomes discontinuous with penetration of oxide. These observations highlight the significant role of phase structure in promoting the formation of protective oxide scales and influencing oxidation resistance.
Article
Materials Science, Multidisciplinary
Yang Li, Ke Ma, Jingjun Xu, Jingjing Li, Yueming Li, Yi Zhang, Jun Zuo, Meishuan Li
Summary: Cr2AlC diffusion barrier effectively blocks the diffusion of Ti, enhancing the stability and spalling resistance of the Al2O3 scales between NiCrAlY coating and TiAl alloy.
Article
Materials Science, Multidisciplinary
Weiyi Wang, Qinglin Pan, Xiangdong Wang, Bing Liu
Summary: By adding Ce, Sc, Y and Zr elements to Al-Mg-Si alloy, the microstructure of the alloy can be regulated, and the corrosion and heat resistance of the materials can be improved.
Article
Materials Science, Multidisciplinary
Andrea Cristoforetti, Javier Izquierdo, Ricardo M. Souto, Flavio Deflorian, Michele Fedel, Stefano Rossi
Summary: This study presents a new approach to studying the mechanism of filiform corrosion in organic coated steel using the scanning vibrating electrode technique (SVET) and micropotentiometry (potentiometric SECM). The electrochemical activity under the coating was evaluated by mapping the ionic current densities coming from artificial defects made in specific locations of the filament. Antimony tips were also used to investigate the pH changes associated with different corrosion reactions at the metal-paint interface. Local pH levels along the filament in the anodic and cathodic regions were determined.
Article
Materials Science, Multidisciplinary
Yang Gao, Dayun Sun, Zhu Liu, Shuo Cong, Rui Tang, Yanping Huang, Lefu Zhang, Xianglong Guo
Summary: The corrosion characteristics of a novel alumina-forming austenitic steel in high-pressure high-temperature water environment were studied. The addition of aluminum has a negative effect on the continuity of the alumina scale.
Article
Materials Science, Multidisciplinary
Negin Madelat, Benny Wouters, Peter Visser, Zahra Jiryaeisharahi, Kristof Marcoen, Shoshan T. Abrahami, Annick Hubin, Herman Terryn, Tom Hauffman
Summary: This work explores the correlation between electrolyte transport properties and the variation of pigment volume concentration (PVC) in organic coatings. An odd random phase electrochemical impedance spectroscopy (ORP-EIS) approach is used to analyze the diffusion of ions independent from water uptake. The results show that a higher PVC leads to a more homogeneous coating structure, resulting in faster diffusion of ions and enhanced water uptake.
Article
Materials Science, Multidisciplinary
Eloa Lopes Maia, Serguei Gavrilov, Valentyn Tsisar, Kitty Baert, Iris De Graeve
Summary: The effect of pre-oxidation in air at 300-500°C on the initiation and development of liquid metal corrosion attack on 316L austenitic steel in static lead-bismuth eutectic (LBE) has been investigated. It was found that pre-formed oxide films can protect the surface against dissolution, while high temperature pre-oxidation leads to localized corrosion.
Article
Materials Science, Multidisciplinary
Baozhuang Sun, Qiuyu Wang, Yue Pan, Zhiyong Liu, Cuiwei Du, Xiaogang Li
Summary: In this study, a non-steady electrochemical model was established to investigate stress corrosion cracking (SCC). The model was verified using 304 SS with various microstructures, confirming its effectiveness in assessing SCC susceptibility.
Article
Materials Science, Multidisciplinary
Xingyu Xiao, Xinhua Liu, Zhilei Wang, Xuexu Xu, Mingying Chen, Jianxin Xie
Summary: The corrosion behavior and mechanisms of Cu-10Ni-X (Al, Fe, Mn, Cr, Sn, Ti, Zn) alloys in a 3.5% NaCl solution were systematically investigated. Both computational and experimental results revealed that except Ti, other elements could enhance the corrosion resistance of Cu2O passivation film.
Article
Materials Science, Multidisciplinary
Gen Zhang, Yan-Ping Huang, E. Jiang, Wei -Wei Liu, Hong Yang, Jing Xiong, Yong-Fu Zhao
Summary: The addition of aluminum has a significant influence on the intermetallic compounds in AFA alloys, particularly increasing the content of B2-NiAl phase. In the SCO2 environment, the oxide scales formed on AFA alloys with aluminum were thinner than on ASS without aluminum, and the structure of the oxide scales changed to a double-layer structure.
Article
Materials Science, Multidisciplinary
Yuxuan He, Guozheng Xiao, Chao Wang, Xuefeng Lu, Liuyuan Li, Shiying Liu, Yusheng Wu, Zhanjie Wang
Summary: The relationship between configurational entropy and lattice distortion in novel rare earth monosilicates was investigated, and the effect of configurational entropy on their properties was studied. The results showed that lattice distortion increased with the increase of configurational entropy, but a highly symmetrical crystal structure was formed when the configurational entropy was large enough, inhibiting the lattice distortion.
