Journal of Materials Research and Technology-Jmr&t最新文献

{"title":"Green manufacturing impact on fatigue strength: A comparative analysis of heat-treated AISI 420 and plastically deformed AISI 301LN stainless steels","authors":"Maurício Pinheiro dos Santos ,&nbsp;Elaine Carballo Siqueira Corrêa ,&nbsp;Geovane Martins Castro ,&nbsp;Waldek Wladimir Bose Filho ,&nbsp;Rodrigo Magnabosco ,&nbsp;Wellington Lopes ,&nbsp;Wilian da Silva Labiapari","doi":"10.1016/j.jmrt.2025.03.087","DOIUrl":"10.1016/j.jmrt.2025.03.087","url":null,"abstract":"<div><div>The demand for sustainable and high-performance materials has driven advancements in stainless steel production, including the development of \"green stainless steels\" that reduce environmental impact without compromising mechanical properties. Traditional steelmaking emits approximately 1.8 tons of CO₂ per ton of steel, whereas the green manufacturing process used in this study replaces coke with sustainably sourced charcoal, significantly lowering emissions while capturing CO₂.</div><div>This study investigates the fatigue behavior of two green high-strength martensitic stainless steels (HSMSS), AISI 420 and AISI 301LN, which differ in composition, microstructure, and processing. AISI 420 underwent quenching and tempering (QT) to achieve a predominantly martensitic structure, while AISI 301LN, a TRIP steel, was cold-rolled with 54 % thickness reduction, inducing partial martensitic transformation. Despite their similar ultimate tensile strength (σUTS ∼1530 MPa), hardness (∼46 HRC), and surface roughness, their fatigue resistance differed significantly.</div><div>Through X-ray diffraction (XRD), optical microscopy (OM), scanning electron microscopy (SEM), and Electron Backscatter Diffraction (EBSD), this study explores how distinct processing routes influence microstructural evolution and fatigue performance. The results provide insights into how sustainable manufacturing methods contribute to fatigue resistance while addressing environmental concerns.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 123-139"},"PeriodicalIF":6.2,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bioresin-based composites reinforced with natural fibers and carbon fiber: Mechanical properties and sustainable benefit assessment","authors":"Varuj Limwibul ,&nbsp;Pitcha Jongvivatsakul ,&nbsp;Tidarut Jirawattanasomkul ,&nbsp;Jian-Guo Dai ,&nbsp;Suched Likitlersuang","doi":"10.1016/j.jmrt.2025.03.092","DOIUrl":"10.1016/j.jmrt.2025.03.092","url":null,"abstract":"<div><div>This study explores the development of bioresin-based fiber-reinforced polymer (FRP) composites, incorporating natural fibers and carbon fiber for comparison purposes. The primary objective is to examine the effects of different fiber types, bioresin compositions, and temperature exposures on the tensile properties of biopolymer-based FRP composites. Four fiber types were tested, including three natural fibers (jute, sisal, and water hyacinth) and carbon fiber. Two biopolymer resins were used: BR29 (29 % bio-content) and BR97 (97 % bio-content). Uniaxial tensile tests were performed on FRP coupon specimens at three different temperatures (25, 40, and 55 °C) to evaluate variations in tensile stress-strain behavior and strength characteristics. The results showed that FRP composites made with BR29 consistently exhibited higher tensile strength than those made with BR97, across all fiber types and all temperatures. This was particularly evident in natural fiber composites, where BR97 caused voids at the fiber-resin interface, weakening the material. Among the tested composites, jute FRP with BR29 demonstrated the highest tensile strength and elastic modulus. Additionally, both carbon and water hyacinth FRP composites with BR29 displayed minimal sensitivity to temperatures up to 55 °C. Despite this, BR97 was found to be suitable for carbon FRP, as it did not significantly reduce tensile strength with increasing temperatures. While carbon FRP composites had the highest CO₂ emissions per unit area, natural FRPs offered a carbon footprint reduction of up to 88.6 %, making them a more sustainable choice for green construction.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 140-156"},"PeriodicalIF":6.2,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143636462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization of monolayer and single-pass pure Cu coatings applied to 6061 T6 Al alloy and AZ31B Mg alloy substrates using high-pressure cold spray technology","authors":"Na Xue ,&nbsp;Weiwei Li ,&nbsp;Ling Shao ,&nbsp;Yingwei Chen ,&nbsp;Yincheng Wu ,&nbsp;Mingxiao Luo ,&nbsp;Khurram Sajjad ,&nbsp;Sheng Dai ,&nbsp;Liu Zhu","doi":"10.1016/j.jmrt.2025.03.089","DOIUrl":"10.1016/j.jmrt.2025.03.089","url":null,"abstract":"<div><div>The study of monolayer and single-pass pure Cu coatings deposited on distinct substrates using high-pressure cold spray technique is crucial for advancing the application of Cu coatings. However research in this area remains limited. This study systematically investigated the deposition of monolayer and single-pass Cu coatings on 6061 T6 Al alloy and AZ31B Mg alloy substrates with different surface finishes using high-pressure cold spray technology. Notably, while the previous studies have primarily employed gas pressure up to 5 MPa, this work extended the pressure boundary to 5.5 MPa, significantly enhancing coating performance. Comprehensive analyses of coating morphology, thickness, microstructure, and porosity were conducted using three-dimensional profilometry, optical microscopy, and scanning electron microscopy. The optimization of gas temperature and gas pressure significantly enhanced the shear strength of the Cu coatings on both substrates, with bonding mechanisms similar to explosive welding. Higher gas pressure facilitated thermal softening and deeper particle penetration, leading to increased shear strength. The Cu coating deposited on the sandblasted AZ31B Mg alloy substrate at 5.5 MPa and 800 °C exhibited a remarkable shear strength of 136.43 MPa. Furthermore, the microhardness of the Cu coatings increased with gas pressure due to work-hardening effects and reduced porosity. Specifically, the Cu coating deposited on the sandblasted 6061 T6 Al alloy substrate at 5.5 MPa and 600 °C reached a microhardness of 206.18 HV, while the porosity of the Cu coating deposited at 5.5 MPa and 800 °C was as low as 0.26 %. The surface roughness of the substrates also played a crucial role in coating performance; grit-blasting led to thicker coatings and enhanced shear strength due to more effective particle filling. In summary, Cu coatings deposited on sandblasted 6061 T6 Al alloy plates at 5.5 MPa and 800 °C achieved a thickness of 486.37 μm, a shear strength of 60.5 MPa and a surface roughness of 8.87 μm. This study provides valuable insights into the effects of process parameters on coating properties, contributing to the broader application of high performance Cu coatings.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 252-271"},"PeriodicalIF":6.2,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143641731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanical response and interface properties of graphene-metal composites: A review","authors":"Shujing Dong ,&nbsp;Tianju Chen ,&nbsp;Huadong Fu ,&nbsp;Xiaohong Chen ,&nbsp;Caizhi Zhou","doi":"10.1016/j.jmrt.2025.03.094","DOIUrl":"10.1016/j.jmrt.2025.03.094","url":null,"abstract":"<div><div>This review explores recent advancements and ongoing challenges in understanding the interface properties and mechanical behavior of graphene-metal composites (GMCs). As a reinforcement material, graphene offers a promising avenue for developing metal matrix composites with enhanced properties, including increased strength, toughness, radiation resistance, and shock tolerance. These improvements depend on factors such as graphene content, fabrication techniques, orientation, and local interface structures. Optimizing these parameters and refining processing methods could unlock the full potential of GMCs for a wide range of applications. The review also examines strategies to further enhance mechanical performance, such as incorporating nanoparticles with graphene and designing hierarchical or hybrid microstructures to improve load-bearing capacity and toughness. Additionally, it discusses graphene's role in grain structure refinement, emphasizing the impact of processing conditions on mechanical properties. Key topics include deformation twinning, nanoindentation, and mechanical responses under quasi-static and extreme loading conditions. This review highlights the critical importance of deliberately engineered interface structures in determining the performance of GMCs. Finally, it underscores the need for advanced computational models to bridge atomic-scale interactions with macroscopic behaviors, offering deeper insights and improved predictive capabilities for strengthening mechanisms in GMCs.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 398-416"},"PeriodicalIF":6.2,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Calcium carbonate nanoparticle-reinforced rubber: Enhancing dynamic mechanical performance and thermal properties","authors":"Mehrnoosh Damircheli ,&nbsp;AmirHossein MajidiRad ,&nbsp;Ramazan Asmatulu","doi":"10.1016/j.jmrt.2025.03.079","DOIUrl":"10.1016/j.jmrt.2025.03.079","url":null,"abstract":"<div><div>This comprehensive study investigates the effects of unique calcium carbonate (CaCO₃) nanoparticle-reinforced natural rubber (NR) and styrene-butadiene rubber (SBR) composite structures for long-lasting tire tread applications. Employing advanced techniques such as stearic acid surface modification and dual-solvent dispersion with toluene and W410 solvent, the research primarily focuses on enhancing tire performance attributes, including handling, wet-skid resistance, rolling resistance, stability, responsiveness, traction, dimensional stability, fuel efficiency, durability, and tread lifespan. Dynamic mechanical analysis (DMA) tests were conducted to measure the viscoelastic properties of the rubber compounds, including storage modulus, loss modulus, glass transition temperature (Tg), and peak tan δ values. Test results showed that the use of W410 and the surface-modified method could positively impact various properties, leading to improved tire strength and performance. Incorporation of the toluene solvent in the dispersion process restricted the mobility of the polymer chains, leading to a higher Tg, while the use of the W410 solvent in the tire compound formulation reduced interfacial friction and resulted in a lower peak tan δ. Additionally, thermogravimetric analysis (TGA) tests showed that the toluene dispersion method provided a higher peak decomposition temperature (Tp), while the W410 solvent dispersion method offered a lower maximum rate of mass reduction and a higher percentage of remaining mass at 660 °C. These findings highlight the major advantages of using these new approaches, including enhanced heat resistance, improved durability and safety, and extended tire lifespan in harsh conditions.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 326-336"},"PeriodicalIF":6.2,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-physics analysis of the effect of the process parameters on the inter-layer geometry and surface topography of Laser Powder Bed Fusion-manufactured parts","authors":"Xingyue Zhai ,&nbsp;Ziad Moumni ,&nbsp;Zhidong Zhang ,&nbsp;Xiaojun Gu ,&nbsp;Jihong Zhu ,&nbsp;Weihong Zhang","doi":"10.1016/j.jmrt.2025.03.085","DOIUrl":"10.1016/j.jmrt.2025.03.085","url":null,"abstract":"<div><div>Surface topography plays an important role in the quality of forming parts by the laser powder bed fusion (LPBF) process. This paper aims to analyze the effect of laser power in single-layer and multi-layer processing using 316L stainless steel. In particular, the novelty of this paper lies in considering the role of the recoater in inter-layer geometry and in analyzing the dynamics of the molten pool (MP) mechanism, which in turn affects the final surface topography. To this end, a multi-physics model incorporating powder bed formation, laser-MP interaction, and MP dynamics is developed. The results show that, for a constant scanning speed, peak and valleys become more pronounced when the laser power increases. Moreover, it is shown that, in the case of multi-layer process, at low laser power, the quality of surface topography does not change from one layer to the next. However, when the laser power is increased, the best surface topography is achieved by changing the laser power between layers. Our analysis provides theoretical and numerical guidance for the optimization of LPBF-3D-printed parts.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 98-110"},"PeriodicalIF":6.2,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modification of inclusion in high-strength steel treated with rare earth","authors":"Qian Meng,&nbsp;Yi Wang,&nbsp;Xiangyu Xu,&nbsp;Jianxun Fu","doi":"10.1016/j.jmrt.2025.03.071","DOIUrl":"10.1016/j.jmrt.2025.03.071","url":null,"abstract":"<div><div>This study focuses on the key issue of brittle inclusions leading to the failure of high-strength steel and investigates the modification of inclusions in steel using rare earth elements. By combining experimental characterization, thermodynamic calculations, and first-principles calculations, the evolution of inclusions in high-strength steel before and after La–Ce rare earth modification is revealed from both macroscopic and microscopic perspectives. The physical properties of different types of inclusions and their impact on steel performance are also examined. The results show that, in the absence of La–Ce, the main inclusions in the steel are large-sized MnS, Ca–Al(-Mg)-O, MnS, and their composite inclusions. After the addition of La–Ce, the original inclusions transform into smaller-sized, nearly spherical or ellipsoidal RE-O-S and RE-O-S + CaS inclusions. The evolution sequence of inclusions in Ce-treated high-strength steel is as follows: Slag phase- &gt; Slag phase + CeAlO₃+CaO- &gt; Slag phase + CeAlO₃+CaO + Ce₂O₃- &gt; CeAlO₃+CaO + Ce₂O₃- &gt; CeAlO₃+CaO + Ce₂O₃+CaS- &gt; Ce₂O₃+CaS- &gt; Ce₂O₃+CaS- &gt; Ce₂O₃+CaS + Ce₂O₂S. Compared to the Fe matrix, the elastic modulus (B), shear modulus (G), Young's modulus (E), and hardness (Hv) of Al₂O₃, LaAlO₃, and CeAlO₃ differ significantly, while the corresponding values of CaAl₂O₄, Ca₃Al₂O₆, and Ca₁₂Al₁₄O₃₃ are all lower than those of the Fe matrix and exhibit brittle characteristics. In contrast, Ce₂O₂S and La₂O₂S show small differences in elastic modulus, and hardness compared to the Fe matrix, which improves the consistency of plastic deformation in the steel matrix, delays the initiation of microvoids and microcracks, and enhances the mechanical properties of the steel. This study provides a theoretical basis for understanding the mechanism of rare earth elements in steel and optimizing the performance of steel.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 470-480"},"PeriodicalIF":6.2,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microstructural evolution and localized corrosion behavior of friction stir welded super duplex UNS S32760 in chloride-containing environments","authors":"G.S. Vacchi ,&nbsp;D.C.C. Magalhães ,&nbsp;A.A. Mendes Filho ,&nbsp;O.M. Cintho ,&nbsp;C.P. Meinhardt ,&nbsp;L.A. Bergmann ,&nbsp;C.A.D. Rovere","doi":"10.1016/j.jmrt.2025.03.042","DOIUrl":"10.1016/j.jmrt.2025.03.042","url":null,"abstract":"<div><div>This study investigates the microstructural evolution and localized corrosion behavior of friction stir welded (FSWed) super duplex stainless steel 2507 (UNS S32760) sheets. The distinct regions on the top surface of the welded joint were examined by microscopy analysis, hardness measurements, and electrochemical polarization techniques in various environments. Discussion of the results focused on microstructure-property relationships, emphasizing these relationships in understanding changes in local corrosion behavior. Our main findings indicating a Cr₂N precipitation, attributed to rapid cooling during the FSW process, at the ferrite/ferrite boundaries in the stir zone in the retreatment side (SZ/RS), stir zone (SZ), and thermomechanical affected zone in the advancing side (TMAZ/AS). This increases the degree of sensitization, resulting in reduced localized corrosion behavior at high potentials in a NaCl solution and diminished passivity in an HCl solution for the RS, SZ, and AS regions. In addition, a grain refinement was observed in the TMAZ/RS, SZ/RS, SZ, SZ/AS and TMAZ/AS regions. These findings unravel the relationship between microstructural evolution and localized corrosion behavior and underscore the critical importance of considering the exposure of FSWed SDSS UNS S32760 to oxidizing environments with chlorides. This consideration has significant implications, including potential challenges related to pitting, intergranular corrosion, and stress corrosion cracking, which should be carefully addressed in practical applications and future research.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 481-499"},"PeriodicalIF":6.2,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phase constitution, microstructure and corrosion performance of binary Sn–Bi alloys","authors":"Róbert Havlík,&nbsp;Marián Drienovský,&nbsp;Žaneta Gerhátová,&nbsp;Paulína Babincová,&nbsp;Martin Kusý,&nbsp;Peter Gogola,&nbsp;Marián Palcut","doi":"10.1016/j.jmrt.2025.03.069","DOIUrl":"10.1016/j.jmrt.2025.03.069","url":null,"abstract":"<div><div>In the present paper, the phase constitution, microstructure, and corrosion behavior of a series of binary Sn–xBi alloys (x = 40, 57 and 80 wt%) have been studied. The materials were prepared by induction melting of high purity Bi and Sn lumps in argon. Subsequently, the alloys were rapidly solidified to form cast ingots. The as-cast Sn–57Bi alloy had a near-eutectic microstructure. The as-cast Sn–40Bi alloy consisted of dendritic Sn(ss) and eutectic grains, while the as-cast Sn–80Bi alloy consisted of dendritic Bi(ss) and eutectic. The corrosion behavior of the alloys was studied by open circuit potential measurements (OCP) and linear sweep voltammetry in an aqueous NaCl solution (1 wt%). The experiments were carried out at room temperature in a three-electrode cell controlled by a potentiostat. The results were compared with those for pure Sn and Bi. The open circuit potentials of the Sn–Bi alloys increased in the following order: Sn &lt; Sn–80Bi &lt; Sn–40Bi &lt; Sn–57Bi &lt; Bi. The corrosion currents of the hypoeutectic Sn–40Bi and hypereutectic Sn–80Bi alloys were found to be higher compared to Sn–57Bi alloy. These results indicate that the near-eutectic Sn–57Bi alloy has a higher corrosion resistance compared to the Sn–80Bi and Sn–40Bi alloys. The corrosion behavior of the binary Sn–Bi alloys was found to take place by a galvanic mechanism. The eutectic regions in the alloys were preferentially attacked. Corrosion products on the alloy surfaces were identified using a combination of SEM/EDS and room-temperature XRD. The results are compared with those of previously studied Sn–Bi alloys. The corrosion mechanism is discussed.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 173-181"},"PeriodicalIF":6.2,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143641818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Suppression of inner surface roughening during hollow sinking of SUS304 stainless-steel tubes with {111} fiber texture","authors":"Takuma Kishimoto,&nbsp;Koki Norizuki,&nbsp;Hisashi Sato","doi":"10.1016/j.jmrt.2025.03.052","DOIUrl":"10.1016/j.jmrt.2025.03.052","url":null,"abstract":"<div><div>The surface roughness and Taylor factor of the inner surfaces of the stainless-steel microtubes were evaluated to clarify the mechanism behind the suppression of inner surface roughening during hollow sinking. SUS304 microtubes with an outer diameter of 2.0 mm and a wall thickness of 0.09 mm were drawn without an inner tool. The inner surface roughnesses and crystal orientations of the original and drawn tubes were evaluated. The results indicated that the Taylor factors of the {112}&lt;111&gt; and {110}&lt;111&gt; textures were larger and smaller, respectively, than those of the other textures in the {111} fiber texture during wall-thickening. Therefore, inhomogeneous deformation was more likely to occur during wall-thickening because the Taylor factor was distributed over a wide range. By contrast, all grains in the {111} fiber texture had nearly the same Taylor factor during wall-thinning. Consequently, differences in the Taylor factor among the grains of the {111} fiber texture were smaller during wall-thinning than during wall-thickening. These results indicate that inhomogeneous deformation of the grains was less likely to occur during wall-thinning than during wall-thickening. Consequently, the coefficient of roughening evolution considering the effect of changes in surface area decreased by up to 60% owing to wall-thinning during hollow sinking.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 182-192"},"PeriodicalIF":6.2,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143641819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}