International Journal of Mechanical and Materials Engineering最新文献

{"title":"Response surface modelling of tensile and impact characteristics of Kevlar/Hemp/CNT reinforced polymer matrix composites","authors":"H. K. Shivanand,&nbsp;Ali B. M. Ali,&nbsp;Madhusudhana Reddy H,&nbsp;ShivaPrakash S,&nbsp;Santhosh Nagaraja,&nbsp;Rahul Biradar,&nbsp;Ahmed Shakir Al-Hiti,&nbsp;Abdul Amir H. Kadhum,&nbsp;Aseel Smerat,&nbsp;Amare Merfo Amsal","doi":"10.1186/s40712-026-00435-8","DOIUrl":"10.1186/s40712-026-00435-8","url":null,"abstract":"<div>\u0000 \u0000 <p>The reinforcement composition optimization is a key factor that is instrumental in improving the mechanical performance of the polymer matrix composites. In the current research, hybrid composites based have been developed using epoxy material reinforced with kevlar fibre, hemp fibre, and carbon nanotubes (CNTs) enroute the hand lay-up process and optimized through response surface methodology (RSM). The kevlar and hemp fibre ranged between 0 and 20 wt.% and the CNT content varied between 0.5 wt.% and 1.5 wt.%. The tensile strength of CNT-only composites (K0H0C0.5) was found to be 195.64 MPa while the tensile strength of hybrid composites based on 20 wt.% kevlar, 10 wt.% hemp, and 1 wt.% CNTs was 221.78 MPa. The elongation reduced to 0.67%, for the hybrid composites afore mentioned in comparison with the K0H0C0.5 which was found to be 0.86%. There was also significant improvement in impact performance when CNT was added and fibre combinations were optimized. RSM was successfully used to determine the best reinforcement content and ANOVA was used to ascertain that the difference in CNT content was statistically significant to tensile and impact strengths. The findings show that the synergistic association of natural and synthetic fibres, CNT fillers could be optimally combined to bring about improved mechanical performance that could be used in lightweight structural applications.</p>\u0000 </div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"21 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-026-00435-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing the impact of carbonitriding on residual weld hydrogen in the manufacture of a gear component","authors":"Fernando Bonilla-Angulo,&nbsp;Tiago Castelão,&nbsp;Yvan Chastel,&nbsp;Frank W. H. Dean,&nbsp;Catherine E. Gardner,&nbsp;Gildas Lecuyer","doi":"10.1186/s40712-026-00414-z","DOIUrl":"10.1186/s40712-026-00414-z","url":null,"abstract":"<div>\u0000 \u0000 <p>In this paper, we report on the direct measurement of hydrogen flux from a machined car gear component immediately following carbonitriding treatment and prior to its welding to the gear train. Carbonitriding is a thermochemical process by which carbon and nitrogen are purposely introduced into the surface of steel components leading to an improvement of their wear and fatigue performance. Hydrogen bearing gases used in the treatment also cause hydrogen uptake in the steel. This hydrogen is substantially retained upon the quenching of the components that immediately follows carbonitriding, potentially leading to hydrogen cracking during subsequent manufacturing welding operations. The work was carried out to ensure a complete understanding of the conditions under which hydrogen, introduced during carbonitriding, is likely to present any risk of subsequent weld failure. Diffusion modelling of measured flux profiles indicated complete permeation of hydrogen through the gear piece at a concentration of 1.8 parts per million by weight (ppm) hydrogen upon the termination of carbonitriding., This compares with commonly specified residual hydrogen levels considered safe for welding of between 1 and 10 ppm hydrogen. However, the hydrogen cracking of welds is also very much informed by the welding thermal profile, geometry and metallurgy. As a result of the flux measurements and modelling, it was possible to adopt and monitor production procedures which assured avoidance of any risk of hydrogen damage during and after the weld process.</p>\u0000 </div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"21 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-026-00414-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147606797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermal degradation of jackfruit peel in nitrogen atmosphere: A comparative study of kinetic models","authors":"Sonam Kardam,&nbsp;Shabina Khanam","doi":"10.1186/s40712-026-00423-y","DOIUrl":"10.1186/s40712-026-00423-y","url":null,"abstract":"<div><p>This study presents a comparative analysis of kinetic models to evaluate the thermal degradation of jackfruit peel in a nitrogen atmosphere. Thermogravimetric analysis was performed to examine the decomposition behavior of JFP, revealing three distinct stages: moisture evaporation (30–105 °C), active pyrolysis (105–380 °C) involving hemicellulose and cellulose degradation, and lignin decomposition with char formation (380–900 °C). The thermal behavior was further analyzed using multiple kinetic models, including Kissinger–Akahira–Sunose, Flynn–Wall–Ozawa, Friedman, Starink, and Tang methods, to determine activation energy (<i>E</i>_<i>a</i>) at different conversion levels. The comparative kinetic analysis demonstrated variations in E_a, with average values of 166.25 kJ/mol Kissinger–Akahira–Sunose, 167.60 kJ/mol Flynn–Wall–Ozawa, 167.82 kJ/mol Friedman, 155.98 kJ/mol Starink, and 166.53 kJ/mol Tang. The highest E_a of 313.65 kJ/mol was observed at a conversion fraction (α) of 0.7, indicating the breakdown of stable lignin structures, whereas a significant decline in E_a at α = 0.9 suggests the completion of decomposition and possible secondary reactions. A statistical analysis was performed to evaluate the reliability of the kinetic parameters. Activation energies, slopes, standard errors, pre-exponential factors, and confidence intervals were examined for each model and conversion level. At lower conversions (α = 0.2–0.6), the activation energies were stable with low uncertainty. As conversion increased (α ≥ 0.7), uncertainty increased due to reduced mass loss, char formation, and experimental noise. The Friedman method captured greater variation at higher conversions but exhibited higher uncertainty. Negative activation energy values at α = 0.9 reflect statistical uncertainty rather than intrinsic reaction behavior. The results confirm the multi-step nature of Jackfruit peel, with different kinetic models capturing variations in reaction pathways. The study highlights the influence of heating rate on thermal decomposition, with higher heating rates shifting degradation peaks to elevated temperatures. Importantly, the choice of kinetic model significantly affects the estimation of activation energy and, consequently, the prediction of optimal pyrolysis conditions, which is crucial for maximizing bioenergy yield and designing efficient thermochemical conversion systems. With a volatile matter content of 74.90%, fixed carbon of 12.98%, and a higher heating value of 16.98 MJ/kg, JFP is a promising feedstock for thermochemical conversion.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"21 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-026-00423-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147607118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Process and operating temperature optimization for polysulfone hollow fiber membrane CO2/CH4 mixture separation via response surface methodology","authors":"Rama Alqassar Bani Almarjeh,&nbsp;Yomen Atassi","doi":"10.1186/s40712-026-00448-3","DOIUrl":"10.1186/s40712-026-00448-3","url":null,"abstract":"<div>\u0000 \u0000 <p>Membrane gas separation has gained significant interest due to its compactness, high area-to-volume ratio, and numerous advantages over traditional gas separation processes such as cryogenic distillation and adsorption towers. Optimizing operating conditions, particularly temperature, is essential to enhance process performance, thereby increasing productivity and product purity. Polysulfone is widely regarded as an ideal membrane material for natural gas treatment due to its balanced permeance for both CH₄ and CO₂. However, its permeance is temperature-dependent, necessitating careful selection of the operating temperature. Our model uniquely integrates two critical non-ideal factors: (i) Arrhenius-type temperature dependence of gas permeance, and (ii) permeate-side pressure drop, addressing limitations in existing models that typically assume isothermal conditions and neglect pressure variations. Validation against experimental data from Tranchino et al. demonstrates the model’s high predictive accuracy, with coefficient of determination (R²) of 0.9436, explained variance (EV) of 0.9463, and mean squared error (MSE) of 4.4595 × 10^− 6 across multiple operating pressures (2–7 atm). Response Surface Methodology (RSM) with Central Composite Design (CCD) was employed to systematically optimize the operating conditions, with Analysis of Variance (ANOVA) used to evaluate the statistical significance of the developed models. Through ANOVA coupled with central composite design, we systematically identified the optimal operating temperature of 348 K for CO₂/CH₄ separation using polysulfone membranes, with a consistent optimal permeate-to-feed pressure ratio (γ) of approximately 0.24. The sensitivity analysis further reveals that feed CO₂ mole fraction (<span>(:{x}_{0})</span>) serves as the most influential parameter for process performance, enabling flexible operation across diverse feed compositions. This integrated modeling and optimization framework provides a practical tool for process engineers to identify optimal operating windows that balance separation performance with energy consumption, and can be readily extended to other membrane materials and gas separation applications.</p>\u0000 </div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"21 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-026-00448-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147607279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermal, structural, and mechanical degradation of Tyranno fibers: an experimental and kinetic modeling study","authors":"Khalil Lafdi,&nbsp;Khalid Zouhri,&nbsp;Anis Lafdi,&nbsp;G. Simha Martynková,&nbsp;Khalid Lafdi","doi":"10.1186/s40712-026-00441-w","DOIUrl":"10.1186/s40712-026-00441-w","url":null,"abstract":"<div>\u0000 \u0000 <p>This experimental and theoretical study systematically investigates the structural, chemical, mechanical, and kinetic behavior of Tyranno fibers subjected to high-temperature exposure. Fibers were heat-treated in an argon atmosphere from 1200 °C to 1500 °C and characterized using FTIR, XRD, TGA, SEM, and mechanical testing. The experimental findings revealed a significant reduction in mechanical performance—with tensile strength and Young's modulus decreasing markedly—that correlated with microstructural and chemical transformations. TGA measurements showed a complex, multi-stage thermal decomposition, which was accurately validated using a simulated kinetic model. Furthermore, the crystallization kinetics, observed via XRD, were successfully described by a Johnson–Mehl–Avrami–Kolmogorov (JMAK) model, providing quantitative insight into the nucleation and growth mechanisms. Collectively, the results highlight a crucial trade-off: high-temperature treatment enhances the thermal and chemical stability of Tyranno fibers by promoting crystallization, but it simultaneously degrades their mechanical properties due to defect formation and porosity. By combining experimental characterization with theoretical modeling, this work provides a comprehensive understanding of the degradation mechanisms, offering valuable insights for optimizing the use of these fibers in demanding aerospace and structural applications.</p>\u0000 </div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"21 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-026-00441-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of mono fiber of different aspect ratios on fresh and strength characteristics of geopolymer concrete","authors":"M. Das,&nbsp;G. C. Behera,&nbsp;J. Jena","doi":"10.1186/s40712-026-00436-7","DOIUrl":"10.1186/s40712-026-00436-7","url":null,"abstract":"<div>\u0000 \u0000 <p>Utilization of industrial waste to produce geopolymer concrete is a good answer to minimize the carbon-dioxide( Co₂) released from the traditional procedure of producing Ordinary Portland cement (OPC). This not only helps to mitigate the release of greenhouse gases, but also provides a sustainable method for managing industrial waste. For production of geopolymer concrete (GPC), ingredients such as supplementary cementitious materials i.e. industrial by- products, slag (GGBS/GGBFS) and fly ash are required. GPC is advantageous over OPC in many respects such as decreasing in pollutants and energy consumption. As GPC is weak in resisting tensile strength, fibers are mixed with GPC which enhances tensile strength, stiffness and toughness. Addition of short and long fibers in a graded manner creates a composite material that performs better under stress. Short fibers help in controlling micro-cracking, improving durability and toughness. Long fibers, on the contrary, play a critical role in bridging and controlling macro-cracks. Addition of long fiber, thus delays failure and enhances the concrete's post-cracking behavior. The combination of short fiber and long fibers ( graded fiber)can produce a more durable and resilient concrete, that will be beneficial for various structural applications. The approach of adding graded fiber to GPC improves the performance, supports sustainability by plummeting reliance on traditional cement and reusing industrial waste. This study also provides empirical relationships to estimate strength in flexure and split in terms of compressive strength. From experimental results, splitting tensile strength can be estimated as 0.08 times the strength of concrete in compression and flexural strength is 0.8*sqrt (compressive strength). These findings demonstrate the potential of using graded glass fibers in geopolymer concrete to enhance its mechanical performance while addressing environmental concerns associated with traditional cement. For improved workability and strength, the ingredients should be accurately batched. Suitable admixtures may be incorporated to mitigate the reduction in slump caused by the addition of fibers. The outcome of the study demonstrate that the fibers effectively bridges cracks and enhances the load-carrying capacity of the concrete.</p>\u0000 </div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"21 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-026-00436-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on high temperature erosion wear behavior of surface strengthened superalloy for underground coal gasification","authors":"Xiangyi Ren,&nbsp;Gang Zhao,&nbsp;Jiakun Yang,&nbsp;Zhiyuan Li,&nbsp;Jianjun Wang,&nbsp;Lihong Han","doi":"10.1186/s40712-026-00446-5","DOIUrl":"10.1186/s40712-026-00446-5","url":null,"abstract":"<div>\u0000 \u0000 <p>Superalloy is the only utilizable material for underground coal gasification channel joint. In this research, the high temperature gas flow erosion wear behavior of superalloy with strengthened layer by boronizing is systematically investigated, including microstructure and hardness. The results reflect that boronizing process can effectively strengthen the surface of superalloy. The high temperature gas erosion wear testing results indicate that boronized layer on superalloy has obvious effect on protecting matrix from high temperature erosion. GH5188 possesses the best high temperature erosion wear resisitance. Before boronizing, wear mechanism of superalloy GH3536 is surface oxidation with spalling of oxide layer by particles impacting, and wear mechanism of superalloy GH5188 and boronized superalloy GH3536 is irregular micro-cutting by high speed particles.</p>\u0000 </div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"21 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-026-00446-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Green synthesis of zinc oxide nanoparticles using two saffron flower extracts and their comparative photocatalytic efficiency in organic dye degradation","authors":"Adil Hamid,&nbsp;Mohit Sahni,&nbsp;Babita Tripathi","doi":"10.1186/s40712-026-00444-7","DOIUrl":"10.1186/s40712-026-00444-7","url":null,"abstract":"<div><p>Zinc oxide (ZnO) nanoparticles are widely explored for photocatalytic degradation of organic pollutants due to their high stability, low cost, and environmental compatibility. In this study, ZnO nanoparticles were synthesized through two green routes using saffron (Crocus sativus) floral extracts to evaluate the effect of extract type and synthesis method on the structural properties and photocatalytic activity. Both saffron anther extract (Z2) and saffron petal extract (Z4) were utilized in the same co-precipitation method to produce green zinc oxide nanoparticles Z2 and Z4. Both approaches avoided toxic reagents, promoting sustainable nanomaterial fabrication. The samples were characterized using X-ray diffraction (XRD), Raman spectroscopy, high-resolution transmission electron microscopy (HR-TEM), and X-ray photoelectron spectroscopy (XPS), confirming the presence of crystalline ZnO with high purity and a nanoscale morphology. Photocatalytic activities were tested under direct natural sunlight using methylene blue (MB), rhodamine B (RhB), and crystal violet (CV) as model dyes. The results revealed that the synthesis route and type of extract significantly influenced degradation performance, with each sample showing dye-dependent activity. The variation in photocatalytic performance between samples synthesized using anther and petal extracts is attributed to differences in phytochemical composition, which influence nucleation behavior and the formation of surface defects. These findings demonstrate the potential of saffron-extract-mediated green synthesis to produce efficient ZnO photocatalysts for environmental remediation.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"21 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-026-00444-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of thermal treatment on the physicochemical properties of VOx/MgO powders synthesized using the glycine-assisted solution combustion method","authors":"Halliru Ibrahim,&nbsp;Amanda S. Mbhele,&nbsp;Asenathi Sibali,&nbsp;Philani P. Mpungose,&nbsp;Nomcebo H. Mthombeni,&nbsp;Usisipho Feleni,&nbsp;Pinkie Ntola","doi":"10.1186/s40712-026-00447-4","DOIUrl":"10.1186/s40712-026-00447-4","url":null,"abstract":"<div>\u0000 \u0000 <p>Solution combustion synthesis (SCS) is an effective and viable solvent assisted synthesis method for metal oxide nano materials such as magnesium oxide (MgO) and/or vanadium oxide supported on magnesium oxide (VOx/MgO). The method offers the advantage of being straight put in producing materials of desirable morphological and physicochemical properties due to varying fuels used in the synthetic process. In this work, calcined and uncalcined MgO and VOx/MgO powders were synthesized using the glycine-assisted SCS method to investigate the effect of heat treatment on the morphological and physicochemical properties of the synthesized materials. The synthesized powders were characterized using powder X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The findings provide insights into the variations in structural morphology, thermogravimetric behaviour and phasic composition of the powders upon the addition of vanadium oxide and on heat treatment. The observed differences in both the calcined and uncalcined VOx/MgO phases and the corresponding larger surface areas in the former highlighted the effect of heat treatment on the powders. These were complemented by the TGA results which revealed that the weight loss percentages were higher for the uncalcined VOx/MgO than for calcined material.</p>\u0000 </div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"21 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-026-00447-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147738059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The influence of microstructure on the stress corrosion resistance of SS 304L","authors":"Omar Bensatte,&nbsp;Fatima Ezzohra El Garchani,&nbsp;Moulay Rachid Kabiri","doi":"10.1186/s40712-026-00442-9","DOIUrl":"10.1186/s40712-026-00442-9","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigated how 304L stainless steel, which is utilized in demanding conditions, is affected by its microstructure in terms of its resistance to stress corrosion cracking (SCC). Through carefully regulated mechanical and thermal processing, researchers created samples with a range of microstructures, which they then characterized using XRD, EBSD, and SEM. Under tensile stress, SCC tests were carried out in an acidic chloride solution in accordance with ASTM G30 recommendations. The findings showed that a fine-grained microstructure limited intergranular corrosion and provided better SCC resistance because of a more uniform chromium distribution. On the other hand, by encouraging localized corrosion and fracture formation, coarser grains and chromium carbides at grain boundaries increased the susceptibility to SCC.</p>\u0000 </div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"21 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-026-00442-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147738060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}