Transactions of Nonferrous Metals Society of China最新文献_第5页

Micro-galvanic corrosion behaviour of Mg−(7,9)Al−1Fe−xNd alloys 镁-(7,9)铝-1Fe-xNd 合金的微电镀腐蚀行为

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-09-01 DOI: 10.1016/S1003-6326(24)66579-9

Kai-xuan FENG , Tao LAI , Yang CHEN , Zheng YIN , Zhi-qin WU , Hong YAN , Hong-gun SONG , Chao LUO , Zhi HU

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Fabrication and anti-corrosion performance of superhydrophobic silane film on sintered NdFeB 烧结钕铁硼超疏水硅烷膜的制备与防腐蚀性能

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-09-01 DOI: 10.1016/S1003-6326(24)66586-6

Wen-tao JU , Li JIANG , Yan-xia LIANG , Shu-ting XU , Ke WANG , Yu-meng YANG , Ben-feng ZHU , Guo-ying WEI , Zhao ZHANG

{"title":"Fabrication and anti-corrosion performance of superhydrophobic silane film on sintered NdFeB","authors":"Wen-tao JU , Li JIANG , Yan-xia LIANG , Shu-ting XU , Ke WANG , Yu-meng YANG , Ben-feng ZHU , Guo-ying WEI , Zhao ZHANG","doi":"10.1016/S1003-6326(24)66586-6","DOIUrl":"10.1016/S1003-6326(24)66586-6","url":null,"abstract":"<div><div>An eco-friendly superhydrophobic protective film (DTMS/TEOS silane film) was fabricated on sintered NdFeB substrate through the utilization of electrochemically assisted deposition technology. The structure, properties, and film-forming mechanism of dodecyltrime-thoxysilane (DTMS)/tetraethoxysilane (TEOS) silane films were comprehensively analyzed using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS). Based on the test results, it can be determined that this film has a superhydrophobic property with a hydrophobicity angle of 152°. This special property can be attributed to the long alkyl chains in the DTMS molecule, the rough morphology, and the low surface energy of the DTMS/TEOS silane film. The surface of sintered NdFeB is coated with a layered three-dimensional network silane film that forms through the condensation of silanol substances. This film provides excellent corrosion resistance to the sintered NdFeB substrate, reducing its corrosion current density to 2.02×10<sup>−6</sup> A/cm<sup>2</sup>. Moreover, the impact of film on the magnetic characteristics of sintered NdFeB was assessed and found to be minimal.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"34 9","pages":"Pages 2928-2942"},"PeriodicalIF":4.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142531403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Effect of sintering temperature and holding time on structure and properties of Li1.5Ga0.5Ti1.5(PO4)3 electrolyte with fast ionic conductivity 烧结温度和保温时间对具有快速离子导电性的 Li1.5Ga0.5Ti1.5(PO4)3 电解质的结构和性能的影响

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-09-01 DOI: 10.1016/S1003-6326(24)66588-X

Yin-yi LUO , Hao-zhang LIANG , Ping ZHANG , Lei HAN , Qian ZHANG , Li-dan LIU , Zhi-wei LUO , Tian-xiang NING , An-xian LU

{"title":"Effect of sintering temperature and holding time on structure and properties of Li1.5Ga0.5Ti1.5(PO4)3 electrolyte with fast ionic conductivity","authors":"Yin-yi LUO , Hao-zhang LIANG , Ping ZHANG , Lei HAN , Qian ZHANG , Li-dan LIU , Zhi-wei LUO , Tian-xiang NING , An-xian LU","doi":"10.1016/S1003-6326(24)66588-X","DOIUrl":"10.1016/S1003-6326(24)66588-X","url":null,"abstract":"<div><div>Li<sub>1.5</sub>Ga<sub>0.5</sub>Ti<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub> (LGTP) is recognized as a promising solid electrolyte material for lithium ions. In this work, LGTP solid electrolyte materials were prepared under different process conditions to explore the effects of sintering temperature and holding time on relative density, phase composition, microstructure, bulk conductivity, and total conductivity. In the impedance test under frequency of 1−10<sup>6</sup> Hz, the bulk conductivity of the samples increased with increasing sintering temperature, and the total conductivity first increased and then decreased. SEM results showed that the average grain size in the ceramics was controlled by the sintering temperature, which increased from (0.54±0.01) μm to (1.21±0.01) μm when the temperature changed from 750 to 950 °C. The relative density of the ceramics increased and then decreased with increasing temperature as the porosity increased. The holding time had little effect on the grain size growth or sample density, but an extended holding time resulted in crack generation that served to reduce the conductivity of the solid electrolyte.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"34 9","pages":"Pages 2959-2971"},"PeriodicalIF":4.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142531405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Interphase migration and enrichment of lead and zinc during copper slag depletion 铜渣贫化过程中铅和锌的相间迁移和富集

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-09-01 DOI: 10.1016/S1003-6326(24)66593-3

Jun HAO , Zhi-he DOU , Xing-yuan WAN , Ting-an ZHANG , Kun WANG

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Effect of combination of ultraviolet radiation and biocide on fungal-induced corrosion of high-strength 7075 aluminum alloy 紫外线辐射和杀菌剂组合对真菌诱导的高强度 7075 铝合金腐蚀的影响

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-09-01 DOI: 10.1016/S1003-6326(24)66576-3

Zheng-yu JIN , Chao WANG , Hai-xian LIU, Hong-wei LIU

{"title":"Effect of combination of ultraviolet radiation and biocide on fungal-induced corrosion of high-strength 7075 aluminum alloy","authors":"Zheng-yu JIN , Chao WANG , Hai-xian LIU, Hong-wei LIU","doi":"10.1016/S1003-6326(24)66576-3","DOIUrl":"10.1016/S1003-6326(24)66576-3","url":null,"abstract":"<div><div>The effect of ultraviolet (UV) radiation and biocide benzalkonium chloride (BKC) on fungal-induced corrosion of AA7075 induced by <em>Aspergillus terreus</em> (<em>A. terreus</em>) was deeply studied using analysis of biological activity, surface analysis, and electrochemical measurements. Results demonstrated that the planktonic and sessile spore concentrations decline by more than two orders of magnitude when UV radiation and BKC are combinedly used compared with the control. UV radiation can inhibit the biological activity of <em>A. terreus</em> and influence the stability of passive film of AA7075. Except for direct disinfection, the physical adsorption of BKC on the specimen can effectively inhibit the attachment of <em>A. terreus</em>. The combination of UV radiation and BKC can much more effectively inhibit the corrosion of AA, especially pitting corrosion, due to their synergistic effect. The combined application of UV radiation and BKC can be a good method to effectively inhibit fungal-induced corrosion.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"34 9","pages":"Pages 2787-2799"},"PeriodicalIF":4.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142531387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Influence of thermomechanical treatment on recrystallization and softening resistance of Cu−6.5Fe−0.3Mg alloy 热机械处理对 Cu-6.5Fe-0.3Mg 合金再结晶和抗软化性能的影响

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-09-01 DOI: 10.1016/S1003-6326(24)66584-2

Zhen-xia LIU , Da-wei YUAN , Xin LUO , Lan-hao WANG , Jin-shui CHEN , Hui-ming CHEN , Xiang-peng XIAO , Bin YANG

{"title":"Influence of thermomechanical treatment on recrystallization and softening resistance of Cu−6.5Fe−0.3Mg alloy","authors":"Zhen-xia LIU , Da-wei YUAN , Xin LUO , Lan-hao WANG , Jin-shui CHEN , Hui-ming CHEN , Xiang-peng XIAO , Bin YANG","doi":"10.1016/S1003-6326(24)66584-2","DOIUrl":"10.1016/S1003-6326(24)66584-2","url":null,"abstract":"<div><div>The recrystallization and softening resistance of a Cu−6.5Fe−0.3Mg (mass fraction, %) alloy prepared by Process 1 (cold rolling heat treatment) and Process 2 (hot/cold rolling heat treatment) were studied using Vickers hardness tests, tensile tests, scanning electron microscopy and transmission electron microscopy. The softening temperature, hardness and tensile strength of the alloy prepared by Process 2 were 110 °C, HV 15 and 114 MPa higher, respectively, than those of the alloy prepared by Process 1 after aging at 300 °C. The recrystallization activation energy of the alloys prepared by Process 1 and Process 2 were 72.83 and 98.11 kJ/mol, respectively. The pinning effects of the precipitates of the two alloys on grain boundaries and dislocations were basically the same. The softening mechanism was mainly attributed to the loss of dislocation strengthening. The higher Fe fiber density inhibited the average free migration path of dislocations and grain boundary migration in the alloy, which was the main reason for higher softening temperature of the alloy prepared by Process 2.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"34 9","pages":"Pages 2900-2917"},"PeriodicalIF":4.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142531401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Effect of brazing temperature on microstructure and tensile strength of γ-TiAl joint vacuum brazed with micro-nano Ti−Cu−Ni−Nb−Al−Hf filler 钎焊温度对使用微纳 Ti-Cu-Ni-Nb-Al-Hf 填料真空钎焊的 γ-TiAl 接头微观结构和拉伸强度的影响

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-08-01 DOI: 10.1016/S1003-6326(24)66560-X

Li LI , Yu-tong CHEN , Lei-xin YUAN , Fen LUO , Zhi-xue FENG , Xiao-qiang LI

{"title":"Effect of brazing temperature on microstructure and tensile strength of γ-TiAl joint vacuum brazed with micro-nano Ti−Cu−Ni−Nb−Al−Hf filler","authors":"Li LI , Yu-tong CHEN , Lei-xin YUAN , Fen LUO , Zhi-xue FENG , Xiao-qiang LI","doi":"10.1016/S1003-6326(24)66560-X","DOIUrl":"10.1016/S1003-6326(24)66560-X","url":null,"abstract":"<div><p>A novel micro-nano Ti−10Cu−10Ni−8Al−8Nb−4Zr−1.5Hf filler was used to vacuum braze Ti−47Al− 2Nb−2Cr−0.15B alloy at 1160−1220 °C for 30 min. The interfacial microstructure and formation mechanism of TiAl joints and the relationships among brazing temperature, interfacial microstructure and joint strength were emphatically investigated. Results show that the TiAl joints brazed at 1160 and 1180 °C possess three interfacial layers and mainly consist of <em>α</em><sub>2</sub>-Ti<sub>3</sub>Al, <em>τ</em><sub>3</sub>-Al<sub>3</sub>NiTi<sub>2</sub> and Ti<sub>2</sub>Ni, but the brazing seams are no longer layered and Ti<sub>2</sub>Ni is completely replaced by the uniformly distributed <em>τ</em><sub>3</sub>-Al<sub>3</sub>NiTi<sub>2</sub> at 1200 and 1220 °C due to the destruction of <em>α</em><sub>2</sub>-Ti<sub>3</sub>Al barrier layer. This transformation at 1200 °C obviously improves the tensile strength of the joint and obtains a maximum of 343 MPa. Notably, the outward diffusion of Al atoms from the dissolution of TiAl substrate dominates the microstructure evolution and tensile strength of the TiAl joint at different brazing temperatures.</p></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"34 8","pages":"Pages 2563-2574"},"PeriodicalIF":4.7,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S100363262466560X/pdf?md5=72a0ee726f1c6d250937105439b85faf&pid=1-s2.0-S100363262466560X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142239439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Effect of interrupted aging on mechanical properties and corrosion resistance of 7A75 aluminum alloy 间断时效对 7A75 铝合金机械性能和耐腐蚀性的影响

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-08-01 DOI: 10.1016/S1003-6326(24)66550-7

Xian-wen YANG , Ling-ying YE , Yong ZHANG , Quan-shi CHENG

{"title":"Effect of interrupted aging on mechanical properties and corrosion resistance of 7A75 aluminum alloy","authors":"Xian-wen YANG , Ling-ying YE , Yong ZHANG , Quan-shi CHENG","doi":"10.1016/S1003-6326(24)66550-7","DOIUrl":"10.1016/S1003-6326(24)66550-7","url":null,"abstract":"<div><p>The effects of interrupted aging on mechanical properties and corrosion resistance of 7A75 aluminum alloy extruded bar were investigated through various analyses, including electrical conductivity, mechanical properties, local corrosion properties, and slow strain rate tensile stress corrosion tests. Microstructure characterization techniques such as metallographic microscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were also employed. The results indicate that the tensile strength of the alloy produced by T6I6 aging is similar to that produced by T6I4 aging, and it even exceeds 700 MPa. Furthermore, the yield strength increases by 52.7 MPa, reaching 654.8 MPa after T6I6 aging treatment. The maximum depths of intergranular corrosion (IGC) and exfoliation corrosion (EXCO) decrease from 116.3 and 468.5 µm to 89.5 and 324.3 µm, respectively. The stress corrosion factor also decreases from 2.1% to 1.6%. These findings suggest that the alloy treated with T6I6 aging exhibits both high strength and excellent stress corrosion cracking resistance. Similarly, when the alloy is treated with T6I4, T6I6 and T6I7 aging, the sizes of grain boundary precipitates (GBPs) are found to be 5.2, 18.4, and 32.8 nm, respectively. The sizes of matrix precipitates are 4.8, 5.7 and 15.7 nm, respectively. The atomic fractions of Zn in GBPs are 9.92 at.%, 8.23 at.% and 6.87 at.%, respectively, while the atomic fractions of Mg are 12.66 at.%, 8.43 at.% and 7.00 at.%, respectively. Additionally, the atomic fractions of Cu are 1.83 at.%, 2.47 at.% and 3.41 at.%, respectively.</p></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"34 8","pages":"Pages 2415-2430"},"PeriodicalIF":4.7,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1003632624665507/pdf?md5=31b54e3294f5152b96648aa3d9f469e6&pid=1-s2.0-S1003632624665507-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142239447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Modeling and characterization on electroplastic effect during dynamic deformation of 5182-O aluminum alloy 5182-O 铝合金动态变形过程中的电塑性效应建模与表征

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-08-01 DOI: 10.1016/S1003-6326(24)66553-2

Hong-chun SHANG, Song-chen WANG, Yan-shan LOU

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Cross-section distortion and springback characteristics of double-cavity aluminum profile in force controlled stretch-bending 力控拉伸弯曲双腔铝型材的截面变形和回弹特性

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-08-01 DOI: 10.1016/S1003-6326(24)66554-4

Zhi-wen LIU , Zi-xuan DONG , Cong-chang XU , Jie YI , Luo-xing LI

{"title":"Cross-section distortion and springback characteristics of double-cavity aluminum profile in force controlled stretch-bending","authors":"Zhi-wen LIU , Zi-xuan DONG , Cong-chang XU , Jie YI , Luo-xing LI","doi":"10.1016/S1003-6326(24)66554-4","DOIUrl":"10.1016/S1003-6326(24)66554-4","url":null,"abstract":"<div><p>A 3D elastic-plastic FE model for simulating the force controlled stretch-bending process of double-cavity aluminum profile was established using hybrid explicit−implicit solvent method. Considering the computational accuracy and efficiency, the optimal choices of numerical parameters and algorithms in FE modelling were determined. The formation mechanisms of cross-section distortion and springback were revealed. The effects of pre-stretching, post-stretching, friction, and the addition of internal fillers on forming quality were investigated. The results show that the stress state of profile in stretch-bending is uniaxial with only a circumferential stress. The stress distribution along the length direction of profile is non-uniform and the maximum tensile stress is located at a certain distance away from the center of profile. As aluminum profile is gradually attached to bending die, the distribution characteristic of cross-section distortion along the length direction of profile changes from V-shape to W-shape. After unloading the forming tools, cross-section distortion decreases obviously due to the stress relaxation, with a maximum distortion difference of 13% before and after unloading. As pre-stretching and post-stretching forces increase, cross-section distortion increases gradually, while springback first decreases and then remains unchanged. With increasing friction between bending die and profile, cross-section distortion slightly decreases, while springback increases. Cross-section distortion decreases by 83% with adding PVC fillers into the cavities of profile, while springback increases by 192.2%.</p></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"34 8","pages":"Pages 2476-2490"},"PeriodicalIF":4.7,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1003632624665544/pdf?md5=1cd5df85678b02e2ebcc1c49e8150fdc&pid=1-s2.0-S1003632624665544-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142239544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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