Article
Chemistry, Physical
Mohsin Sattar, Abdul Rahim Othman, Maaz Akhtar, Shahrul Kamaruddin, Rashid Khan, Faisal Masood, Mohammad Azad Alam, Mohammad Azeem, Sumiya Mohsin
Summary: The Kachanov-Rabotnov isotropic creep damage constitutive model has been used to evaluate high-temperature component creep deformation in various scenarios. A curve-fitting technique was proposed to extrapolate creep behavior beyond available data points by fitting the Kachanov-Rabotnov model to limited creep data. The method is useful for predicting material creep behavior and generating creep curves, as demonstrated in the study on SS-316 through experimental validation and sensitivity analysis.
Article
Materials Science, Multidisciplinary
J. Christopher, C. Praveen, V Ganesan, G. V. Prasad Reddy, Shaju K. Albert
Summary: The study employed the Kachanov-Rabotnov continuum damage model to describe the creep deformation of 316L austenitic stainless steel with different nitrogen contents. The parameters of the model decrease systematically with increasing nitrogen content, and the dominance of damage rate over strain rate increases with nitrogen content.
INTERNATIONAL JOURNAL OF DAMAGE MECHANICS
(2021)
Article
Materials Science, Multidisciplinary
Mohsin Sattar, Abdul Rahim Othman, Muhammad Firdaus Othman, Hafiz T. Ali, Muhammad Kashif Khan
Summary: The limitations of existing creep models have led to the development of a new creep model that combines different models to overcome their weaknesses, providing more accurate deformation predictions for metallic materials.
Article
Materials Science, Multidisciplinary
Injin Sah, Jong-Bae Hwang, Eung-Seon Kim
Summary: The study focused on the manufacturing and evaluation of a diffusion weldment for plate-type heat exchangers in the next-generation nuclear industry. Microscopic analysis showed the formation of Al-rich oxides along the interface, hindering grain-boundary movement and resulting in premature brittle fracture. Despite lower performance compared to the original alloy, the diffusion weldment exhibited some stability under high stress conditions.
Article
Engineering, Multidisciplinary
J. Avila Molina, O. Muransky, L. Bortolan Neto, J. J. Kruzic, R. N. Wright
Summary: Regularised linear regression (RLR) and recurrent neural network (RNN) data-driven models are developed, trained, and tested for predicting the high-temperature fatigue life of Alloy 617. The performance of these models is compared with semi-empirical models, and it is found that the data-driven models can match or outperform the semi-empirical models while being temperature independent. However, they have limitations in accurate extrapolation beyond the available experimental data.
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
(2023)
Article
Materials Science, Multidisciplinary
Sumanta Bagui, Bibhu Prasad Sahu, Bhupeshwar Mahato, Monalisa Mandal, Soumitra Tarafder, Rahul Mitra
Summary: The creep behavior of Inconel 617 alloy under different loads and temperatures was studied, and the results showed that the microstructural instability during creep influenced its mechanical properties.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Nanoscience & Nanotechnology
Ch. Visweswara Rao, N. C. Santhi Srinivas, G. V. S. Sastry, Vakil Singh
Summary: The work hardening behavior of the IN-617 alloy under different conditions was studied, showing unique characteristics in terms of flow behavior. Ductile fractures with dimples were observed in the solution treated and aged conditions, while faceted fractures were seen in the cold worked conditions at both room temperature and 700 degrees C.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Engineering, Mechanical
Pei-Shan Ding, Xiao-Tao Zheng
Summary: The creep-ratcheting behavior of advanced 9-12 % Cr ferritic steel at 600 degrees C under different peak holding times was investigated, and a corresponding creep-ratcheting constitutive model was developed. Results showed that the anelastic strain remains relatively constant for different holding times, but decreases rapidly during the last several cycles. Moreover, the study observed the behavior of primary creep regeneration during repeated loading and unloading, which remains almost the same with increasing number of cycles.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Nanoscience & Nanotechnology
Yunsheng Wu, Xiangxiang Zhang, Changshuai Wang, Xuezhi Qin, Jieshan Hou, Lanzhang Zhou
Summary: The creep deformation behavior and microstructure evolution of the Ni-Fe-based GH984G alloy were investigated. The interaction between dislocation and gamma' precipitates is the main reason for the higher creep activation energy than lattice self-diffusion. Dislocation climbing is the primary creep mechanism below 800℃, while dislocation climbing and partial dislocation shearing into gamma' dominate above 800℃. Additionally, microstructural degradation also contributes to creep damage.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
Di Xie, Rui Feng, Peter K. Liaw, Hongbin Bei, Yanfei Gao
Summary: This study investigates the long-term tensile creep behavior of multicomponent equiatomic solid solution alloys with face-centered cubic crystal structures. It is found that dislocation creep is the dominant deformation mechanism for all the alloys studied. Despite variations in room-temperature strength and creep rate, the creep lifetime data for these alloys are similar.
SCRIPTA MATERIALIA
(2022)
Article
Nanoscience & Nanotechnology
Sumanta Bagui, Monalisa Mandal, Biraj Kumar Sahoo, Kinkar Laha, Soumitra Tarafder, Rahul Mitra
Summary: The study on the 'non-classical creep behavior' of the Inconel 617 alloy reveals significant influences of microstructural evolution at different temperatures and pressures on creep resistance. Increase in hardness in samples subjected to creep tests at 700 degrees C is mainly attributed to the formation of ample fine gamma' precipitates along with fine secondary carbides. In contrast, the absence of gamma' precipitates at 800 degrees C results in lower hardness levels.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Engineering, Mechanical
W. H. Yeo, A. T. Fry, J. I. Inayat-Hussain, J. Purbolaksono
Summary: The efficiency of coal-fired boilers can be improved by increasing the operating steam pressure and temperature, but higher pressure and temperature may result in increased boiler tube failure. This study focuses on estimating the remaining creep life of Alloy 617 in superheater and reheater tubing of ultra supercritical boilers, emphasizing the need for further viability studies and careful consideration when operating at high temperatures and pressures.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Materials Science, Multidisciplinary
Kumar Sourabh, J. B. Singh
Summary: The creep behavior of Ni-base superalloy 690 was studied under constant load creep conditions at temperatures ranging from 800 to 1000 ℃ and stresses ranging from 25 to 105 MPa. The alloy exhibited power-law creep behavior and followed the Monkman-Grant relationship. The majority of creep data points fell within a +/- 5% scatter band on the Larson Miller parameter vs. log stress plot. The alloy underwent more than 50% of its life in the tertiary creep regime and predominantly failed due to cavitation. The apparent activation energy and stress exponent of creep were relatively high.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Engineering, Mechanical
Mariyappan Arul Kumar, Laurent Capolungo
Summary: Predicting the effects of microstructure on high-temperature creep responses of steel components is critical to minimize the risks of failure and maximize economic viability in the energy sector. In this study, an advanced mechanistic constitutive model is used to investigate the influence of microstructure on creep responses and to explain the variability in the performance of grade-91 alloy. The model accurately predicts steady-state creep rates and primary-to-secondary transients for a wide range of creep conditions, and can also extrapolate the creep response of grade-91 alloy outside of the calibration regime. The study shows that the initial microstructure, characterized by grain size, dislocation density, and precipitate content, plays a significant role in the creep response, with the significance varying with stress and temperature. Comparing the model predictions with experimental data reveals that the differences in creep responses can be rationalized based on differences in the initial microstructure.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
Article
Materials Science, Multidisciplinary
Joshua D. Pribe, Dylan A. Addison, Thomas Siegmund, Jamie J. Kruzic
Summary: The research reveals that at high temperatures, fatigue crack growth is affected by load transients, with higher rate-sensitive materials accelerating crack growth and lower rate-sensitive materials causing retardation, leading to a transition in crack growth behavior.
INTERNATIONAL JOURNAL OF FRACTURE
(2021)
Article
Engineering, Mechanical
Vladislav Yakubov, Peidong He, Jamie J. Kruzic, Xiaopeng Li
Summary: The AlSi10Mg alloy modified with 4 wt.% cerium was fabricated using selective laser melting and heat-treated, showing a fine microstructure and good heat resistance. The addition of cerium did not affect the alloy hardness.
AUSTRALIAN JOURNAL OF MECHANICAL ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Michael Moschetti, Patrick A. Burr, Edward Obbard, Jamie J. Kruzic, Peter Hosemann, Bernd Gludovatz
Summary: The demanding operating environments of advanced nuclear reactors require the development of new nuclear materials. High-entropy alloys (HEAs) have shown impressive mechanical, thermomechanical, and corrosion-resistant properties. Research has shown that HEAs may exhibit unique irradiation tolerance. This work assesses the challenges faced by nuclear materials and identifies the potential advantages of HEAs in specific applications.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Review
Engineering, Biomedical
Jamie J. Kruzic, Mark Hoffman, Joseph A. Arsecularatne
Summary: Human tooth enamel needs to withstand contact forces, wear, and corrosion in the oral environment. This review provides an overview of the fatigue and wear mechanisms of enamel and their relationship to tooth damage. Additionally, it highlights the importance of understanding these processes for improving the longevity of natural teeth and calls for further research in this area.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Carina B. Tanaka, Haoyu Teng, Bosong Li, Bernd Gludovatz, Ding-Bang Xiong, Jamie J. Kruzic
Summary: The fracture toughness of nanolaminated graphene/aluminum composites was investigated, which exhibited a tensile strength exceeding 300 MPa. The results showed fracture toughness values exceeding 20 MPa root m, with negligible anisotropy for two cracking orientations. This approach of bioinspired nanolaminated metal matrix composites overcomes the trade-off between strength and toughness in pure aluminum by promoting crack blunting, deflection, and bifurcation.
Article
Pharmacology & Pharmacy
Diana Pereira Lopes, Selma Regina Muniz Freitas, Carina Baptiston Tanaka, Giovanne Delechiave, Lucia Nobuco Takamori Kikuchi, Roberto R. Braga, Jamie J. Kruzic, Maria Stella Moreira, Leticia Cristina Cidreira Boaro, Luiz Henrique Catalani, Flavia Goncalves
Summary: The study aimed to analyze how different process parameters control the size and properties of submicrometer chitosan particles loaded with DCPA. Solutions of 10 mg/mL chitosan and 2.5 mg/mL DCPA in a 90% acetic acid were electrosprayed under three distinct flow rate conditions: 0.2, 0.5, and 1.0 mL/h. The particles were characterized in terms of morphology, inorganic content, zeta potential, and minimum inhibitory concentration (MIC) against S. mutans. The results showed that a flow rate of 0.5 mL/h presented the best compromise solution in terms of morphology, zeta potential, MIC, and inorganic content.
Correction
Engineering, Biomedical
Yuwan Huang, Pavithra B. Jayathilaka, Md Shariful Islam, Carina B. Tanaka, Meredith N. Silberstein, Kristopher A. Kilian, Jamie J. Kruzic
ACTA BIOMATERIALIA
(2023)
Article
Chemistry, Multidisciplinary
Xinyue Zhang, Yiyuan Yang, Yujing Liu, Zhe Jia, Qianqian Wang, Ligang Sun, Lai-Chang Zhang, Jamie J. Kruzic, Jian Lu, Baolong Shen
Summary: A novel defect engineering strategy has been proposed to construct a nanoporous high-entropy metallic glass with a nanocrystalline surface structure, which exhibits excellent electrocatalytic performance using only 3% of platinum. The defect-rich metallic glass achieves ultralow overpotentials and long-term durability under alkaline conditions, and significantly reduced energy barriers for water electrolysis.
ADVANCED MATERIALS
(2023)
Article
Construction & Building Technology
Y. A. Moe, M. T. Hasib, M. J. Paul, M. Amraei, A. Ahola, J. Kruzic, A. Heidarpour, X. L. Zhao
Summary: This study experimentally investigates the fatigue crack growth rates of three different grades of ultra-high strength steels (S700, S960 and S1100) in welded components. The fatigue material constants for different regions of the welded components are determined, and comparisons are made with literature results. It is found that the S700 base material has the lowest fatigue crack propagation resistance, and laser welding outperforms gas metal arc welding in terms of fatigue crack growth resistance.
ADVANCES IN STRUCTURAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Hongwei Liu, Keita Nomoto, Anna V. Ceguerra, Jamie J. Kruzic, Julie Cairney, Simon P. Ringer
Summary: This study develops a new software tool for calculating Pair distribution function (PDF) from electron diffraction patterns (EDPs). The software tool features accurate background subtraction and automatic conversion of different diffraction intensity profiles into a PDF. The study also evaluates the effects of background subtraction and elliptical distortion on PDF profiles. The EDP2PDF software provides a reliable tool for analyzing the atomic structure of both crystalline and non-crystalline materials.
JOURNAL OF APPLIED CRYSTALLOGRAPHY
(2023)
Article
Materials Science, Multidisciplinary
Michael Moschetti, Alan Xu, Anton Hohenwarter, Tao Wei, Joel Davis, Ken Short, Gordon J. Thorogood, Charlie Kong, Jean-Philippe Couzinie, Dhriti Bhattacharyya, Jamie J. Kruzic, Bernd Gludovatz
Summary: This study characterizes the impact of phase transformations on the room-temperature irradiation tolerance of a nanocrystalline TiZrNbHfTa RHEA. Results show that the alloy demonstrates exceptional irradiation tolerance after 500°C treatments for 1-100 h, with minimal irradiation-induced hardening. However, 800°C treatment for 1 h negatively impacts the mechanical performance, causing significant irradiation-induced hardening and embrittlement.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Chemistry, Physical
Manish Jain, Amit Sharma, Krzysztof Pajor, Krzysztof Wieczerzak, Nicolo M. della Ventura, Xavier Maeder, Jamie J. Kruzic, Bernd Gludovatz, Johann Michler
Summary: Metallic glasses can have various atomic arrangements determined by processing history, influencing their mechanical properties. Recent studies have shown that physically stable thin film metallic glasses can have high strength and plasticity, although they may differ from bulk metallic glasses. This study utilized two different fabrication methods to create compositionally similar Zr-based glasses in thin film and bulk form, and characterized their oxygen concentration, composition, and structure. The mechanical response of both types of glasses was examined and found that the thin film metallic glass exhibited higher strength without sacrificing plasticity, with the deformation mechanism changing at elevated temperatures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Zhuohan Cao, Qian Liu, Qianchu Liu, Xiaobo Yu, Jamie J. Kruzic, Xiaopeng Li
Summary: This study develops a machine learning-based approach using image data to predict and reconstruct the microstructural features of LPBF fabricated Ti-6Al-4V alloy. The results show that the proposed method can accurately predict the microstructural features under different process parameters, offering potential applications in process optimization and material design in additive manufacturing.
NPJ COMPUTATIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xinyue Zhang, Yiyuan Yang, Yujing Liu, Zhe Jia, Qianqian Wang, Ligang Sun, Lai-Chang Zhang, Jamie J. Kruzic, Jian Lu, Baolong Shen
Summary: The paper presents a novel defect engineering strategy to construct a nanoporous high-entropy metallic glass with a nanocrystalline surface structure, which achieves excellent electrocatalytic performance using only 3 at% of Pt. The defect-rich material shows ultralow overpotentials and long-term durability under alkaline conditions, as well as low energy consumption under acidic and neutral conditions.
ADVANCED MATERIALS
(2023)
Correction
Materials Science, Multidisciplinary
Michael Moschetti, Patrick A. Burr, Edward Obbard, Jamie J. Kruzic, Peter Hosemann, Bernd Gludovatz
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Engineering, Multidisciplinary
Abraham Mensah, Srinivas Sriramula
Summary: This paper proposes a pathway for developing efficient performance functions to evaluate the probability of failure for interacting pipeline corrosion clustering defects using a probabilistic finite element-based reliability method. The framework reduces computational cost and offers informed decision-making on risk and maintenance management.
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
(2024)
Article
Engineering, Multidisciplinary
Baozhu Zhang, Wenchun Jiang, Yun Luo, Wei Peng, Yingjie Qiao
Summary: This paper studies the distribution of residual stress in thick wall girth welds using narrow-gap welding. The study finds that the heat input, wall thickness, radius thickness ratio, and number of welding passes have an effect on residual stress. A model for the distribution of welding residual stress through the wall thickness is proposed, and its results are in good agreement with finite element calculation results.
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
(2024)
Article
Engineering, Multidisciplinary
Stefan Culafic, Darko Bajic, Tasko Maneski
Summary: This paper presents experimental research on a branch model conducted in laboratory conditions. The study verifies the linear relationship between stress and internal pressure in the field of elasticity and reveals the occurrences when stresses exceed the yield strength of the branch material, such as plastic deformations of the branch model. The research also defines the dependence of stress on internal pressure in both the field of elasticity and the zone of residual stresses.
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
(2024)
Article
Engineering, Multidisciplinary
Wenchun Jiang, Wenlu Xie, Xinyue Qi, Yangguang Deng, Yu Wan, Xuefang Xie
Summary: Various types of solid-state phase transformations (SSPT) occur during the SA508 steel welding process, leading to complex microstructure distribution and significant influence on residual stress distribution. To better control microstructure and residual stress, optimization of process parameters related to welding thermal cycles is necessary.
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
(2024)