Scripta Materialia最新文献_第10页

Harmonizing physical and deep learning modeling: A computationally efficient and interpretable approach for property prediction 物理建模与深度学习建模的协调：一种计算高效、可解释的属性预测方法

IF 5.3 2区材料科学

Scripta Materialia Pub Date : 2024-09-05 DOI: 10.1016/j.scriptamat.2024.116350

Da Ren, Chenchong Wang, Xiaolu Wei, Yuqi Zhang, Siyu Han, Wei Xu

{"title":"Harmonizing physical and deep learning modeling: A computationally efficient and interpretable approach for property prediction","authors":"Da Ren, Chenchong Wang, Xiaolu Wei, Yuqi Zhang, Siyu Han, Wei Xu","doi":"10.1016/j.scriptamat.2024.116350","DOIUrl":"10.1016/j.scriptamat.2024.116350","url":null,"abstract":"<div>Physical modeling and deep learning are known for their respective advantages in interpretability and computational efficiency. Nonetheless, efficiently predicting properties of metallic materials while maintaining interpretability presents a formidable challenge. This study proposes a novel solution by introducing dual-output deep learning model that simultaneously predicts stress-strain partitioning and mechanical properties through a two-component architecture. The initial component uses U-Net model trained on stress and strain partitioning generated from crystal plasticity (CP) simulations, thereby enhancing interpretability. Subsequently, this information is used to predict the properties in the second component. The prediction results demonstrate the validity of this approach, accurately predicting high stress at the martensite-martensite interface, high strain at the ferrite-martensite interface, and properties. In addition, the minimal computational cost significantly improves efficiency compared to conventional CP method. This innovative methodology represents a significant advancement, achieving harmonious balance between interpretability, computational accuracy, and efficiency in properties prediction of metallic materials.</div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"255 ","pages":"Article 116350"},"PeriodicalIF":5.3,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142150558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

De-alloyed non-noble Fe-based alloy for hydrogen evolution reaction 用于氢进化反应的去合金化非贵金属铁基合金

IF 5.3 2区材料科学

Scripta Materialia Pub Date : 2024-09-05 DOI: 10.1016/j.scriptamat.2024.116344

Zhe Cui , Jia Li , Si-Cheng Zhong , Guang-Run Tian , Zhong-Hong Zhou , Hong-Fei Jiao , Jie-Fu Xiong , Li-Chen Wang , Jun Xiang , Fu-Fa Wu , Rong-Da Zhao

{"title":"De-alloyed non-noble Fe-based alloy for hydrogen evolution reaction","authors":"Zhe Cui , Jia Li , Si-Cheng Zhong , Guang-Run Tian , Zhong-Hong Zhou , Hong-Fei Jiao , Jie-Fu Xiong , Li-Chen Wang , Jun Xiang , Fu-Fa Wu , Rong-Da Zhao","doi":"10.1016/j.scriptamat.2024.116344","DOIUrl":"10.1016/j.scriptamat.2024.116344","url":null,"abstract":"<div>The high cost of noble metal raw materials is a major limitation to the production of hydrogen from electrocatalytic water splitting. Nowadays, the poor activity and complex synthesis methods of non-noble electrocatalysts need to be urgently improved. Herein, we prepared the Fe-Si-B alloys with nanosheet structure on the surface by de-alloying process in KOH solution. Experimental results indicate that there are lots of B-doped Fe nanosheets on the surface due to the faster dissolution rate of Fe-Si phase in the alkaline solution. The small amounts of boron remaining and the oxidation of the Fe nanosheets could enhance the activity of the hydrogen evolution reaction (HER). The HER overpotential under 10 mA/cm2 is 214 mV. The coordination between elemental components and the de-alloying process not only increased the electrochemical surface area, but also enhanced electrocatalytic activity of iron atoms. This work provides a new idea for the design of Fe-based electrocatalysts.</div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"255 ","pages":"Article 116344"},"PeriodicalIF":5.3,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142150559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Functionally graded nickel–titanium shape memory alloys produced by in-situ additive manufacturing 通过原位添加制造技术生产功能分级镍钛形状记忆合金

IF 5.3 2区材料科学

Scripta Materialia Pub Date : 2024-09-04 DOI: 10.1016/j.scriptamat.2024.116351

Jia-Ning Zhu , Zhaorui Yan , Yi-Chieh Yang , Zhaoying Ding , Marcel J.M. Hermans , Joerg R. Jinschek , Vera Popovich

{"title":"Functionally graded nickel–titanium shape memory alloys produced by in-situ additive manufacturing","authors":"Jia-Ning Zhu , Zhaorui Yan , Yi-Chieh Yang , Zhaoying Ding , Marcel J.M. Hermans , Joerg R. Jinschek , Vera Popovich","doi":"10.1016/j.scriptamat.2024.116351","DOIUrl":"10.1016/j.scriptamat.2024.116351","url":null,"abstract":"<div>In this study, three-dimensional functionally graded NiTi bulk materials were fabricated using laser powder bed fusion (LPBF) by in-situ adding Ni powder into equiatomic NiTi powder. The gradient zone exhibited a Ni composition ranging from approximately 49.6 to 52.4 at.% over a distance of about 2.75 mm. The functionalities along the compositional gradient were examined through differential scanning calorimetry analysis and spherical indentation. This unique gradient resulted in location-specific functionalities, including superelasticity characterized by wide and narrow hysteresis loops, shape memory effect, and various phase transformation temperatures. The rapid cooling rate during fabrication led to the presence of excess Ni in the solid-solute state within NiTi. This unique solid-solute compositional gradient in NiTi resulted in varying lattice parameters, influencing the compatibility between martensite and austenite and allowing for tailored hysteresis. This discovery presents new avenues for designing multifunctional materials through in-situ additive manufacturing.</div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"255 ","pages":"Article 116351"},"PeriodicalIF":5.3,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1359646224003865/pdfft?md5=263e7b32b56d6a13f21da0fa8a502c86&pid=1-s2.0-S1359646224003865-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142137183","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}

引用次数: 0

Anomalous Hall effect and topological Hall effect in Kagome lattice material Yb0.90Mn6Ge3.25Ga0.39 single crystal 卡戈米晶格材料 Yb0.90Mn6Ge3.25Ga0.39 单晶中的反常霍尔效应和拓扑霍尔效应

IF 5.3 2区材料科学

Scripta Materialia Pub Date : 2024-09-04 DOI: 10.1016/j.scriptamat.2024.116345

Bodong Lv , Rui Zhong , Xiaohua Luo , Shengcan Ma , Changcai Chen , Sujuan Wang , Qing Luo , Fei Gao , Chunsheng Fang , Weijun Ren

{"title":"Anomalous Hall effect and topological Hall effect in Kagome lattice material Yb0.90Mn6Ge3.25Ga0.39 single crystal","authors":"Bodong Lv , Rui Zhong , Xiaohua Luo , Shengcan Ma , Changcai Chen , Sujuan Wang , Qing Luo , Fei Gao , Chunsheng Fang , Weijun Ren","doi":"10.1016/j.scriptamat.2024.116345","DOIUrl":"10.1016/j.scriptamat.2024.116345","url":null,"abstract":"<div>Kagome lattice, made of corner-sharing triangles, provides an excellent platform for hosting exotic topological quantum phases. Here, we report the observation of large anomalous Hall effect and topological Hall effect in the Kagome lattice material Yb0.90Mn6Ge3.25Ga0.39 single crystal. Compared to the antiferromagnetic pristine compound YbMn6Ge6, Yb0.90Mn6Ge3.25Ga0.39 has an easy plane ferromagnetic structure below 361 K and presents a spin-reorientation transition at 218 K. An intrinsic anomalous Hall conductivity with the value of 604.2 Ω-1·cm-1 is obtained in Yb0.90Mn6Ge3.25Ga0.39, which is the largest in RMn6X6 (X = Ge and Sn) family. Besides, a remarkable topological Hall signal is also observed near room temperature. The topological Hall resistivity of Yb0.90Mn6Ge3.25Ga0.39 is determined to be -1.86 μΩ·cm at 280 K under μ0H = 0.3 T. Our results indicate that Yb0.90Mn6Ge3.25Ga0.39 may be an excellent platform to study the relationship between the magnetic and electronic structure and to explore novel quantum phenomenon.</div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"255 ","pages":"Article 116345"},"PeriodicalIF":5.3,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142137182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In situ synchrotron X-ray diffraction study: Phase evolution in transition zone of TiAl/Ti2AlNb dual alloy fabricated by laser-directed energy deposition 原位同步辐射 X 射线衍射研究：激光定向能量沉积制造的 TiAl/Ti2AlNb 双合金过渡区的相变

IF 5.3 2区材料科学

Scripta Materialia Pub Date : 2024-09-03 DOI: 10.1016/j.scriptamat.2024.116340

Yu Wu , Dongsheng Zhang , Huilong Hou , Sen Chen , Ye Tao , Bingbing Zhang , Wei Liu

{"title":"In situ synchrotron X-ray diffraction study: Phase evolution in transition zone of TiAl/Ti2AlNb dual alloy fabricated by laser-directed energy deposition","authors":"Yu Wu , Dongsheng Zhang , Huilong Hou , Sen Chen , Ye Tao , Bingbing Zhang , Wei Liu","doi":"10.1016/j.scriptamat.2024.116340","DOIUrl":"10.1016/j.scriptamat.2024.116340","url":null,"abstract":"<div>The phase evolution in the transition zone (TZ) of TiAl/Ti2AlNb dual alloy during laser-directed energy deposition (L-DED) process was investigated using in situ synchrotron radiation X-ray diffraction. The as-solidified microstructure of the TZ forms through the following phase transitions: Liquid→ Liquid + β/B2 →β/B2→ β/B2 + α2. Thermal cycles promote the β/B2 to α2 phase transition with the α2 phase precipitates from the (011) plane of the β/B2 matrix during this transition. The phase transition sequence of the TZ during the first thermal cycle is: β/B2 + α2 → β/B2 → β/B2 + α2. The second thermal cycle leads to a partial transformation of β/B2 phase to α2 phase. The TZ experiences no phase transition from the third thermal cycle. This study provides a comprehensive understanding of the phase formation mechanism in the TZ of L-DEDed TiAl/Ti2AlNb dual alloys.</div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"255 ","pages":"Article 116340"},"PeriodicalIF":5.3,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142129690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mass transport driving forces under electric current in the liquid Sn-Zn system 液态锡锌体系中电流作用下的质量输运驱动力

IF 5.3 2区材料科学

Scripta Materialia Pub Date : 2024-09-03 DOI: 10.1016/j.scriptamat.2024.116349

Jean-Philippe Monchoux

{"title":"Mass transport driving forces under electric current in the liquid Sn-Zn system","authors":"Jean-Philippe Monchoux","doi":"10.1016/j.scriptamat.2024.116349","DOIUrl":"10.1016/j.scriptamat.2024.116349","url":null,"abstract":"<div>Significant effects of electric currents on mass transport in liquid metals have been observed for long, but the origin of the corresponding driving forces remains unclear in the literature. Without current, two driving forces induce mass transport in liquid metals. (i) A chemical force, coming from concentration gradients. In that case, mass transport occurs by diffusion. (ii) A physical force, resulting from density gradients thermally and/or chemically induced. Here, mass transport occurs by thermal and/or solutal convection. Under electric currents, these driving forces are modified, either by electrostatic or magnetic forces, the corresponding mechanisms being referred to as electroconvection and magnetoconvection, respectively. However, these mechanisms cannot easily be distinguished from each other, leading to confusion in literature. Here, it has been shown that, in the liquid Sn-Zn system, the driving force induced by 500–1000 A/cm2 electric current densities is magnetic rather than electrostatic, the mechanism being therefore magnetoconvection.</div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"255 ","pages":"Article 116349"},"PeriodicalIF":5.3,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1359646224003841/pdfft?md5=2300451f648aed5b1d0eaffabc8241e5&pid=1-s2.0-S1359646224003841-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142129691","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}

引用次数: 0

Twinning induced strain hardening and plasticity in a γ''-precipitated medium-entropy alloy with ultrahigh yield strength 具有超高屈服强度的γ''-沉淀中熵合金中的孪晶诱导应变硬化和塑性

IF 5.3 2区材料科学

Scripta Materialia Pub Date : 2024-09-01 DOI: 10.1016/j.scriptamat.2024.116338

Jie Gan , Jinxiong Hou , Jianyang Zhang , Yiyuan Su , Xier Luo , Tzuhsiu Chou , Lin Yuan , Xia Li , Junhua Luan , Zhiyu Sun , Hai Nan , Tao Yang

{"title":"Twinning induced strain hardening and plasticity in a γ''-precipitated medium-entropy alloy with ultrahigh yield strength","authors":"Jie Gan , Jinxiong Hou , Jianyang Zhang , Yiyuan Su , Xier Luo , Tzuhsiu Chou , Lin Yuan , Xia Li , Junhua Luan , Zhiyu Sun , Hai Nan , Tao Yang","doi":"10.1016/j.scriptamat.2024.116338","DOIUrl":"10.1016/j.scriptamat.2024.116338","url":null,"abstract":"<div>Keeping adequate strain hardening to postpone plastic instability to a larger tensile strain is a stiff challenge in alloys with high yield strength. This study showed the feasibility of activating deformation twins (DTs) to ductilize an ultra-strong medium-entropy alloy (MEA) through microstructural design. High content (∼24 %) γ'' precipitates were introduced into a Ni49.9Fe33Cr10Nb4Ta3B0.1 (at.%) MEA to offer high yield stress. We found that increasing the γ'' precipitate size and spacing successfully activated DTs, contributing to a sustainable strain hardening of the alloy. Accordingly, an ultrahigh tensile yield stress (YS) of 1.55 GPa and ultimate tensile stress (UTS) of 1.7 GPa, along with a fracture elongation of 14.5 % were achieved in the MEA. We further demonstrated that compared to lowering the stacking-fault energy (SFE), increasing γ'' precipitate spacing significantly reduced the critical shear stress for triggering twinning partials in a nanoscale γ/γ'' system.</div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"254 ","pages":"Article 116338"},"PeriodicalIF":5.3,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1359646224003713/pdfft?md5=92bd23790f1d0b75643bc1c45eb236f0&pid=1-s2.0-S1359646224003713-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142117660","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}

引用次数: 0

Crystallization path and non-isothermal kinetics of the Zr59.5Cu14.4Ni11.6Al9.7Nb4.8 metallic glass under different heating rates 不同加热速率下 Zr59.5Cu14.4Ni11.6Al9.7Nb4.8 金属玻璃的结晶路径和非等温动力学特性

IF 5.3 2区材料科学

Scripta Materialia Pub Date : 2024-08-31 DOI: 10.1016/j.scriptamat.2024.116339

Yi Wu , Biao Li , Yuhui Zhu , Xudong Yuan , Tingyi Yan , Hongwei Zhang , Huameng Fu , Haifeng Zhang , Long Zhang

{"title":"Crystallization path and non-isothermal kinetics of the Zr59.5Cu14.4Ni11.6Al9.7Nb4.8 metallic glass under different heating rates","authors":"Yi Wu , Biao Li , Yuhui Zhu , Xudong Yuan , Tingyi Yan , Hongwei Zhang , Huameng Fu , Haifeng Zhang , Long Zhang","doi":"10.1016/j.scriptamat.2024.116339","DOIUrl":"10.1016/j.scriptamat.2024.116339","url":null,"abstract":"<div>In this work, the crystallization path and non-isothermal kinetics upon heating of the Zr59.5Cu14.4Ni11.6Al9.7Nb4.8 metallic glass were investigated. The devitrification process consists the formation of phases in the sequence of icosahedral quasicrystal (IQ) phase, Ni-containing phases, and Cu-containing phases. Avrami exponents were calculated at various heating rates, providing insights into the non-isothermal crystallization kinetics. The IQ phase and Ni-containing phases are interface-controlled growth, while the Cu-containing phases are diffusion-controlled growth. In addition, a continuous heating transition (CHT) diagram with a heating rate range exceeding six orders of magnitude was constructed, and the crystallization mechanism under different heating rates was revealed. These findings enrich the understanding of crystallization path and kinetics of metallic glass.</div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"254 ","pages":"Article 116339"},"PeriodicalIF":5.3,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1359646224003737/pdfft?md5=1f3d6e84295e60a6f01740d7482fd764&pid=1-s2.0-S1359646224003737-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142097831","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}

引用次数: 0

Improvement in mechanical as well as magnetic properties of a (FeCoNi)90Ti10-xAlx complex concentrated alloy series by tuning the chemical order 通过调整化学顺序改善 (FeCoNi)90Ti10-xAlx 复合浓缩合金系列的机械和磁性能

IF 5.3 2区材料科学

Scripta Materialia Pub Date : 2024-08-31 DOI: 10.1016/j.scriptamat.2024.116333

X. Xu , K.P. Davidson , L.P. Tan , Stéphane Gorsse , V. Chaudhary , R.V. Ramanujan

{"title":"Improvement in mechanical as well as magnetic properties of a (FeCoNi)90Ti10-xAlx complex concentrated alloy series by tuning the chemical order","authors":"X. Xu , K.P. Davidson , L.P. Tan , Stéphane Gorsse , V. Chaudhary , R.V. Ramanujan","doi":"10.1016/j.scriptamat.2024.116333","DOIUrl":"10.1016/j.scriptamat.2024.116333","url":null,"abstract":"<div>There is considerable interest in magnetic materials which also possess good mechanical properties. Hence, the effect of Ti/Al ratio on the microstructure, mechanical and magnetic properties of (FeCoNi)90Ti10-xAlx complex concentrated alloys (CCA) was investigated. An increase in the Ti/Al ratio in these CCA enhanced chemical ordering and substantially improved selected mechanical and magnetic properties. As the Ti/Al ratio changed from 10 to 0, the ductility increased from 7.5 to close to 50 %, the saturation magnetization (Ms) increased from 115.2 to 136.7 emu/g, and the coercivity (Hc) decreased from 17.9 to 4.2 Oe. The Fe30Co30Ni30Ti5Al5 alloy exhibit higher UTS×EL value than available soft magnetic materials and has relatively higher Ms and lower Hc compared with other CCA. These results provide a methodology to modulate the chemical order in the Fe-Co-Ni system by Al and Ti additions and synergistically tune the mechanical and magnetic properties for high performance rotating electrical machine applications.</div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"254 ","pages":"Article 116333"},"PeriodicalIF":5.3,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1359646224003683/pdfft?md5=5b5f1b94ce55d8ae10abeb29941d4881&pid=1-s2.0-S1359646224003683-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142097832","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}

引用次数: 0

Nano hydride precipitation-induced disappearance of yield drop in zirconium alloy at elevated temperature 纳米氢化物沉淀诱导高温下锆合金屈服下降的消失

IF 5.3 2区材料科学

Scripta Materialia Pub Date : 2024-08-30 DOI: 10.1016/j.scriptamat.2024.116342

Yuchun Zhuang , Dayong An , Yao Wang , Senmao Liang , Jun Zhou , Shilei Li , Jinshan Li , Weijia Gong

{"title":"Nano hydride precipitation-induced disappearance of yield drop in zirconium alloy at elevated temperature","authors":"Yuchun Zhuang , Dayong An , Yao Wang , Senmao Liang , Jun Zhou , Shilei Li , Jinshan Li , Weijia Gong","doi":"10.1016/j.scriptamat.2024.116342","DOIUrl":"10.1016/j.scriptamat.2024.116342","url":null,"abstract":"<div>Hydrogen-induced variations in mechanical behavior of zirconium alloys impose detrimental influence on nuclear fuel cladding integrity. This work reports a disappearance of intrinsic yield drop in a recrystallized zirconium alloy following hydrogen-charging treatment. Microstructure characterizations reveal that the nano-hydrides precipitation, mediated by second phase particles Zr(Fe,Cr)2 acting as hydrogen trapping sites, leads to emission of substantial dislocations in α-matrix grains due to strong strain concentrations, as identified by high-angular resolution EBSD. These mobile dislocations preserved at elevated temperatures can maintain the applied plastic strain and impede rapid dislocation multiplication as well, a conclusion validated by comparative analysis of dislocation densities prior to and near yielding stage. These findings are expected to shed light on the underlying mechanisms governing the interaction between hydrogen and microstructural defects in Zr-based nuclear fuel cladding materials.</div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"254 ","pages":"Article 116342"},"PeriodicalIF":5.3,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1359646224003762/pdfft?md5=d07942fa0e1fad8cc4855f47768f22ef&pid=1-s2.0-S1359646224003762-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142097830","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}

引用次数: 0