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

Improving comprehensive performance of Cu−Sn−P−Ni−Si alloy through composition and heat treatment optimization 通过优化成分和热处理，提高Cu−Sn−P−Ni−Si合金的综合性能

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-05-01 DOI: 10.1016/S1003-6326(25)66771-9

Guo-liang LI , Zi-di HANG , Shi-peng YUE , Zhong-kai GUO , Jin-chuan JIE , Ting-ju LI

引用次数: 0

Interfacial adsorption and reactivity of exact separation of sphalerite and pyrite by ferrophilic inhibitors in EX−Cu(II) system EX−Cu（II）体系中亲铁抑制剂对闪锌矿和黄铁矿精确分离的界面吸附和反应性

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-05-01 DOI: 10.1016/S1003-6326(25)66774-4

Wen-chao DONG, Run-qing LIU, Chang-tao WANG, Zheng-qiang CAO, Wei SUN

{"title":"Interfacial adsorption and reactivity of exact separation of sphalerite and pyrite by ferrophilic inhibitors in EX−Cu(II) system","authors":"Wen-chao DONG, Run-qing LIU, Chang-tao WANG, Zheng-qiang CAO, Wei SUN","doi":"10.1016/S1003-6326(25)66774-4","DOIUrl":"10.1016/S1003-6326(25)66774-4","url":null,"abstract":"<div><div>Tetrasodium iminodisuccinate (IDS) was used as an inhibitor in the separation of sphalerite and pyrite in the EX−Cu(II) (ethyl xanthate and Cu<sup>2+</sup>) system. The flotation test results demonstrated that IDS can effectively separate sphalerite and pyrite under low alkaline conditions. Furthermore, high-quality zinc concentrates with a Zn grade of 58.48% and a recovery of 91.24% through mixed mineral flotation were obtained. The fundamental mechanisms were investigated through surface wettability tests, adsorption capacity tests, LEIS, FTIR, and XPS. The results confirmed that IDS prevents the adsorption of EX on the surface of pyrite, thereby reducing the response and reactivity of pyrite. The introduction of IDS causes the detachment of Cu<sup>2+</sup> from the Cu-activated pyrite surface. This process allowed IDS to chelate with the Fe sites on the surface of pyrite through the —COO— and N-centered active groups. By contrast, IDS exhibits weaker adhesion on the surface of Cu-activated sphalerite, making it easily displaced by EX through competitive adsorption.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"35 5","pages":"Pages 1662-1678"},"PeriodicalIF":4.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144280676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Mechanical properties and corrosion behavior of hetero-structured lean Mg−1Bi−0.5Sn−0.5In alloy 异质组织贫Mg−1Bi−0.5Sn−0.5In合金的力学性能和腐蚀行为

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-05-01 DOI: 10.1016/S1003-6326(24)66759-2

Hong-wei XU , Wen-ting XU , Wei-li CHENG , Jian LI , Li-fei WANG , Hui YU , Jin-hui WANG , Hua HOU , Kwang Seon SHIN

{"title":"Mechanical properties and corrosion behavior of hetero-structured lean Mg−1Bi−0.5Sn−0.5In alloy","authors":"Hong-wei XU , Wen-ting XU , Wei-li CHENG , Jian LI , Li-fei WANG , Hui YU , Jin-hui WANG , Hua HOU , Kwang Seon SHIN","doi":"10.1016/S1003-6326(24)66759-2","DOIUrl":"10.1016/S1003-6326(24)66759-2","url":null,"abstract":"<div><div>The microstructural characterization, corrosion behavior and tensile properties of the extruded lean Mg−1Bi−0.5Sn−0.5In (wt.%) alloy were investigated through scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), X-ray photoelectron spectroscopy (XPS), electrochemical measurements and tensile tests. The results reveal that a microstructure consisting of dynamically recrystallized and deformed grains is obtained. Notably, the investigated alloy exhibits excellent strength−ductility synergy, with tensile yield strength (TYS), ultimate tensile strength (UTS) and elongation (EL) of 254.8 MPa, 315.4 MPa, and 25.3%, respectively. Furthermore, in 3.5 wt.% NaCl solution, with the increase of immersion time, the dominant corrosion mechanism of the studied alloy transforms from pitting corrosion to filiform corrosion. After the immersion for 24 h, a composite oxide film (SnO<sub>2</sub>− Bi<sub>2</sub>O<sub>3</sub>−In<sub>2</sub>O<sub>3</sub>) is formed, which delays the corrosion process, and the corrosion rate (<em>P</em><sub>H</sub>=1.53 mm/a) is finally stabilized.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"35 5","pages":"Pages 1440-1455"},"PeriodicalIF":4.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144280650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Fungal corrosion behavior and mechanism of deposit-covered aluminum alloy 7075 in marine environment 沉积覆层铝合金7075在海洋环境中的真菌腐蚀行为及机理

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-05-01 DOI: 10.1016/S1003-6326(24)66757-9

Jia-ping WANG , Yi ZHANG , Hong-wei LIU , Yan-sheng YIN

{"title":"Fungal corrosion behavior and mechanism of deposit-covered aluminum alloy 7075 in marine environment","authors":"Jia-ping WANG , Yi ZHANG , Hong-wei LIU , Yan-sheng YIN","doi":"10.1016/S1003-6326(24)66757-9","DOIUrl":"10.1016/S1003-6326(24)66757-9","url":null,"abstract":"<div><div>The corrosion behavior of deposit-covered aluminum alloy 7075 (AA7075) caused by fungus <em>Aspergillus terreus</em> (<em>A. terreus</em>) was thoroughly investigated in artificial seawater aiming to offer some new insights into the under-deposit corrosion mechanism of aluminum alloys in marine environments containing fungi. Electrochemical impedance spectroscopy, polarization curves, wire beam electrodes, and surface analysis were performed. Results indicate that <em>A. terreus</em> can survive beneath the deposit but the counts of sessile spores decline as the increase of deposit thickness, suggesting a poor biological activity of <em>A. terreus</em> beneath the deposit. Both the uniform corrosion and pitting corrosion are accelerated by <em>A. terreus</em>, while the pitting corrosion of AA7075 alloys beneath the deposit derives from a galvanic cell with a small anode and a large cathode. Deposits have a corrosion inhibition effect on AA7075. However, the galvanic effect caused by the bare and deposit-covered AA specimens is obviously enhanced by <em>A. terreus</em>.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"35 5","pages":"Pages 1406-1423"},"PeriodicalIF":4.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144280655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Microstructure, mechanical properties, and formability of 1030B Al strip manufactured by ultrasound-assisted continuous casting direct rolling 超声辅助连铸直轧1030B铝带材的组织、力学性能及成形性能

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-05-01 DOI: 10.1016/S1003-6326(24)66755-5

Li ZHANG , Xiao-qian LI , Shang GE , Guan HUANG , Ri-peng JIANG , Jing-pei XIE , Shao-kang GUAN

{"title":"Microstructure, mechanical properties, and formability of 1030B Al strip manufactured by ultrasound-assisted continuous casting direct rolling","authors":"Li ZHANG , Xiao-qian LI , Shang GE , Guan HUANG , Ri-peng JIANG , Jing-pei XIE , Shao-kang GUAN","doi":"10.1016/S1003-6326(24)66755-5","DOIUrl":"10.1016/S1003-6326(24)66755-5","url":null,"abstract":"<div><div>The microstructure and properties of a 1030B Al strip were improved by applying ultrasonic melt treatment (UMT) in a Hazelett continuous casting direct rolling production line. The microstructure and properties of the 1030B Al strip were investigated by scanning electron microscopy, electron backscatter diffraction, and tensile testing. Applying UMT reduced the average grain size of the as-cast sheet by more than 28.0% with respect to that of the normal samples without UMT. When UMT was applied, the rolled strip inherited the refined grains from the as-cast sheet with an average grain size smaller than 63.0 μm. Meanwhile, the dislocation density was increased by the grain refinement, dynamic recovery, and recrystallization during rolling. Accordingly, the strain-hardening rates of the rolled samples after UMT were generally higher than those of the normal samples, and the strength of the rolled strip was also improved. Furthermore, the rolled strip exhibited better formability with higher strain-hardening exponents and Erichsen index values.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"35 5","pages":"Pages 1381-1393"},"PeriodicalIF":4.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144280653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Origin of misorientations for fcc→hcp transformation in pure cobalt and its in-situ validation 纯钴中fcc→hcp相变取向偏差的成因及原位验证

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-05-01 DOI: 10.1016/S1003-6326(25)66765-3

Jin-jiang HE , Guo-jin XU , Xing-quan WANG , Jun-feng LUO , Dan LIU , Yong-jun LI , Xin-fu GU

{"title":"Origin of misorientations for fcc→hcp transformation in pure cobalt and its in-situ validation","authors":"Jin-jiang HE , Guo-jin XU , Xing-quan WANG , Jun-feng LUO , Dan LIU , Yong-jun LI , Xin-fu GU","doi":"10.1016/S1003-6326(25)66765-3","DOIUrl":"10.1016/S1003-6326(25)66765-3","url":null,"abstract":"<div><div>The origin of the misorientations after fcc (face-centered cubic) to hcp (hexagonal close-packed) transformation in pure cobalt was elucidated by utilizing the electron backscatter diffraction (EBSD) technique and transformation crystallographic models. It is found the Shoji−Nishiyama orientation relationship during fcc→hcp transformation leads to four hcp variants, characterized by a common misorientation angle of 70.5° with respect to the direction, which is the predominant misorientation observed. Other statistically significant misorientation angles between hcp grains, including 32°, 36°, 38°, 60°, 71° and 86°−91°, are also identified. These newly observed misorientation angles are linked to the microstructure of the fcc matrix at elevated temperatures, with twin structures in the fcc matrix being the primary cause. Furthermore, a novel method is proposed for estimating the fraction of twins in the fcc grains based on misorientation angles between hcp variants, which is found to be consistent with experimental observations. In-situ EBSD observations validate the possible origin of fcc twins from the hcp→fcc transformation.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"35 5","pages":"Pages 1532-1542"},"PeriodicalIF":4.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144280670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Creep behavior of powder metallurgy Ni-based superalloys with minor scandium 含少量钪的粉末冶金镍基高温合金的蠕变行为

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-05-01 DOI: 10.1016/S1003-6326(25)66769-0

Li-ming TAN , Lin YE , Heng DONG , Xiao-qiong OUYANG , Xiang-you XIAO , Qi ZENG , Jing-wei CHEN , Lan HUANG , Feng LIU

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Edge cracking behavior of copper foil in asymmetrical micro-rolling 非对称微轧制中铜箔的边缘开裂行为

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-05-01 DOI: 10.1016/S1003-6326(25)66772-0

Jing-qi CHEN , Lin-yun ZHENG , Wei ZHAO , Zhen-hua BAI , Xue-tong LI , Ri-huan LU , Shou-dong CHEN , Xiang-hua LIU , Hai-tao GAO , Hai-liang YU

{"title":"Edge cracking behavior of copper foil in asymmetrical micro-rolling","authors":"Jing-qi CHEN , Lin-yun ZHENG , Wei ZHAO , Zhen-hua BAI , Xue-tong LI , Ri-huan LU , Shou-dong CHEN , Xiang-hua LIU , Hai-tao GAO , Hai-liang YU","doi":"10.1016/S1003-6326(25)66772-0","DOIUrl":"10.1016/S1003-6326(25)66772-0","url":null,"abstract":"<div><div>The edge crack behavior of copper foil in asymmetrical micro-rolling was studied. The effects of the speed ratio between rolls, grain size and stress state in the deformation zone on edge cracks of the rolled piece in asymmetrical rolling were analyzed. Low plasticity, uneven deformation and longitudinal secondary tensile stress generated in the edge area of the rolled piece during the rolling process are the main causes of edge cracks. The larger the grain size of the rolled piece, the smaller the number of edge cracks and the deeper the expansion depth, and the larger the spacing between cracks under the same rolling reduction. Asymmetrical rolling can effectively increase the rolling reduction at when the copper foil fist shows edge cracks compared to symmetrical rolling. This enhancement is attributed to the shearing stress induced by asymmetrical rolling, which reduces the rolling force and longitudinal secondary tensile stress, and increases the residual compressive stress on the surface of the rolled piece. The edge crack defects of copper foil can be effectively reduced by increasing the speed ratio between the rolls in asymmetrical rolling.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"35 5","pages":"Pages 1634-1647"},"PeriodicalIF":4.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144280674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Kinetics of chalcopyrite dissolution in ammonia solution under sealed conditions and controlled redox potential 封闭条件下控制氧化还原电位下黄铜矿在氨溶液中的溶解动力学

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-05-01 DOI: 10.1016/S1003-6326(25)66776-8

He-yun SUN , Ren-man RUAN , Jiu-shuai DENG

{"title":"Kinetics of chalcopyrite dissolution in ammonia solution under sealed conditions and controlled redox potential","authors":"He-yun SUN , Ren-man RUAN , Jiu-shuai DENG","doi":"10.1016/S1003-6326(25)66776-8","DOIUrl":"10.1016/S1003-6326(25)66776-8","url":null,"abstract":"<div><div>To provide optimization strategies for chalcopyrite ammonia heap leaching processes, the key factors influencing chalcopyrite ammonia leaching kinetics were investigated under sealed reactor and controlled redox potential at ambient temperature. The results indicated that redox potential, particle size, and pH significantly affected chalcopyrite dissolution rates. The reaction orders with respect to particle size and hydroxyl ion concentration <em>c</em>(OH<sup>−</sup>) were determined to be −2.39 and 0.55, respectively. Temperature exhibited a marginal effect on chalcopyrite dissolution within the range of 25−45 °C. The ammonium carbonate medium proved more favorable for chalcopyrite leaching than ammonium chloride and ammonium sulfate systems. Surface deposits on the residues were identified as porous iron oxides, predominantly hematite and ferrihydrite, which produced diffusion barriers during leaching. Shrinking core model analysis revealed that the second stage of reaction was controlled by product-layer diffusion, which was further confirmed by the low activation energy (10.18 kJ/mol).</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"35 5","pages":"Pages 1691-1703"},"PeriodicalIF":4.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144280667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Mechanisms of ductile-to-brittle transition in Sn−3.0Ag−0.5Cu solder alloy at cryogenic temperature 低温下Sn−3.0Ag−0.5Cu钎料合金韧脆转变机理

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-04-01 DOI: 10.1016/S1003-6326(24)66748-8

Sheng-li LI , Chun-jin HANG , Qi-long GUAN , Xiao-jiu TANG , Ning ZHOU , Yan-hong TIAN , Wei ZHANG , Dan YU , Ying DING , Xiu-li WANG

{"title":"Mechanisms of ductile-to-brittle transition in Sn−3.0Ag−0.5Cu solder alloy at cryogenic temperature","authors":"Sheng-li LI , Chun-jin HANG , Qi-long GUAN , Xiao-jiu TANG , Ning ZHOU , Yan-hong TIAN , Wei ZHANG , Dan YU , Ying DING , Xiu-li WANG","doi":"10.1016/S1003-6326(24)66748-8","DOIUrl":"10.1016/S1003-6326(24)66748-8","url":null,"abstract":"<div><div>The inherent brittle behavior and ductile-to-brittle transition (DBT) mechanism of Sn−3.0Ag−0.5Cu (SAC305) solder alloy at the liquid nitrogen temperature (LNT, 77 K) were investigated through uniaxial tensile experiments conducted at different temperatures. Dynamic recovery and recrystallization of SAC305 solder alloy at room temperature (RT, 293 K) activate a softening process. Conversely, intersecting and none-intersecting deformation twins, embedded in body-centered tetragonal Sn, enhance tensile strength and stabilize strain hardening rate, while suppressing the elongation of the alloy at LNT. The irreconcilable velocity difference between twin thickening (~8 µm/s) and dislocation slip (~4 µm/s) results in premature brittle fracture, during the linear hardening and DBT. Moreover, the secondary phases degrade the mechanical property of SAC305 solder alloy, and micro-cracks appear between Cu<sub>6</sub>Sn<sub>5</sub> and Ag<sub>3</sub>Sn in the eutectic matrix.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"35 4","pages":"Pages 1281-1291"},"PeriodicalIF":4.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143868114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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