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The effect of heat treatment on the anisotropic mechanical properties of metastable β titanium alloy 热处理对易变β钛合金各向异性力学性能的影响
Materials Science and Technology Pub Date : 2024-05-16 DOI: 10.1177/02670836241252550
Qian Wang, Yujing Yang, Sensen Huang, M. Qi, Jianbo Zhao, Feng Yan, Yingjie Ma, J. Lei, Rui Yang
{"title":"The effect of heat treatment on the anisotropic mechanical properties of metastable β titanium alloy","authors":"Qian Wang, Yujing Yang, Sensen Huang, M. Qi, Jianbo Zhao, Feng Yan, Yingjie Ma, J. Lei, Rui Yang","doi":"10.1177/02670836241252550","DOIUrl":"https://doi.org/10.1177/02670836241252550","url":null,"abstract":"The effect of heat treatment on the anisotropic mechanical properties of metastable β titanium alloy is investigated in this work. The anisotropic deformation behaviour is mainly due to the formation of band-like macrozone and texture during forging, which can be effectively weakened by solution + aging treatment. Both the microstructure and texture of the heat treated samples are favourable for the lower strength, higher ductility and impact toughness of axis direction (AD) samples than circumferential direction (CD) ones. Besides, the CD impact samples have stronger anisotropy than AD samples. The delamination along different directions happens in the impact fracture surface of CD samples.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":"97 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140968119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimizing the surface quality of heat-treated 2Cr13 stainless steel via electrochemical machining 通过电化学加工优化热处理 2Cr13 不锈钢的表面质量
Materials Science and Technology Pub Date : 2024-05-15 DOI: 10.1177/02670836241253976
JingSheng Xu, ManFu Wang
{"title":"Optimizing the surface quality of heat-treated 2Cr13 stainless steel via electrochemical machining","authors":"JingSheng Xu, ManFu Wang","doi":"10.1177/02670836241253976","DOIUrl":"https://doi.org/10.1177/02670836241253976","url":null,"abstract":"The improvement of mechanical properties and surface quality was of great significance for materials. In this study, 2Cr13 stainless steel was subjected to the quenching and tempering treatment. The electrochemical machining approach was adopted for surface treatment. The results showed that the quenching and tempering treatment improved the Vickers microhardness of 2Cr13 stainless steel. The enhancement of microhardness was facilitated by the formation of tempered sorbite and grain refinement. Electrochemical machining provided high quality surfaces. The heat-treated workpice had more advantages in electrochemical machining efficiency. The polarization curves proved a downward shift of the self-corrosion potential for the heat-treated 2Cr13 stainless steel, which was strongly related to the electrochemical behavior. A mechanism model for promoting anode electrochemical dissolution was proposed.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140974369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of AC/DC mixed current waveform on surface oxidation, microstructure and mechanical properties of TIG welded TC4 titanium alloy 交直流混合电流波形对 TIG 焊接 TC4 钛合金表面氧化、微观结构和机械性能的影响
Materials Science and Technology Pub Date : 2024-05-15 DOI: 10.1177/02670836241253012
Yihao Gao, Yunhao Chen, Boqiao Ren, Xinchen Sui, Xiaohui Zhao, Chenglei Fan, Chao Chen
{"title":"Effect of AC/DC mixed current waveform on surface oxidation, microstructure and mechanical properties of TIG welded TC4 titanium alloy","authors":"Yihao Gao, Yunhao Chen, Boqiao Ren, Xinchen Sui, Xiaohui Zhao, Chenglei Fan, Chao Chen","doi":"10.1177/02670836241253012","DOIUrl":"https://doi.org/10.1177/02670836241253012","url":null,"abstract":"Coarse β-grains and severe surface oxidation are major factors plaguing the comprehensive properties of tungsten inert gas (TIG) welded joints of titanium alloy. To improve the performance of welded joints, a novel current waveform, alternating current/direct current (AC/DC) mixed current waveform which was named Mix-TIG was proposed. In Mix-TIG, the oxide film on the weld surface is broken up by the cathodic crushing effect. Cyclic variations of the current waveform produce stronger arc stirring and more intense oscillations in the molten pool which results in grain refinement. In addition, the lower temperature gradient in the melt pool due to the smaller heat input in Mix-TIG also contributes to grain refinement. The elongation and microhardness of the Mix-TIG were increased.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":"51 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140972555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Twinning-induced texture weakening in Mg alloy and its consequent influence on ductility and formability 孪晶诱导的镁合金纹理弱化及其对延展性和可成形性的影响
Materials Science and Technology Pub Date : 2024-05-08 DOI: 10.1177/02670836241251942
U. M. Chaudry, Hafiz Muhammad Rehan Tariq, K. Hamad, Muhammad Kashif Khan, T. Jun
{"title":"Twinning-induced texture weakening in Mg alloy and its consequent influence on ductility and formability","authors":"U. M. Chaudry, Hafiz Muhammad Rehan Tariq, K. Hamad, Muhammad Kashif Khan, T. Jun","doi":"10.1177/02670836241251942","DOIUrl":"https://doi.org/10.1177/02670836241251942","url":null,"abstract":"In this study, the room temperature formability of AZ31-0.5Ca was significantly enhanced by pre-deformation to 5% plastic strain. The pre-deformed samples showed the evolution of boundaries related to [Formula: see text] tension twins resulting in weakening of the strong basal texture and leading to excellent improvement in the formability. The pre-induced twining can be considered to be an effective approach to control the texture and enhance the formability of Mg alloy.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":" 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141000154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of squeeze casting on microstructure and mechanical properties of Al–5Cu–1Mn–0.3Ti alloy 挤压铸造对 Al-5Cu-1Mn-0.3Ti 合金微观结构和机械性能的影响
Materials Science and Technology Pub Date : 2024-05-08 DOI: 10.1177/02670836241249359
Zhanwei Su, Xuelian Li, Huiliang Chen, Shiwei Xu
{"title":"Effects of squeeze casting on microstructure and mechanical properties of Al–5Cu–1Mn–0.3Ti alloy","authors":"Zhanwei Su, Xuelian Li, Huiliang Chen, Shiwei Xu","doi":"10.1177/02670836241249359","DOIUrl":"https://doi.org/10.1177/02670836241249359","url":null,"abstract":"In this work, the microstructure and mechanical properties of the Al–5Cu–1Mn–0.3Ti alloy prepared by different casting processes were investigated. The results showed that direct squeeze casting can further refine the grain and θ-Al2Cu phase, which is favourable to the uniform distribution of the θ-Al2Cu phase. The fluffy θ-Al2Cu/α-Al interface was caused by the severe pressure loss during the indirect squeeze casting process. The strength and elongation of direct squeeze casting alloy are 508 MPa and 18.5%, which are 40.3% and 123% higher than those of the alloys of indirect squeeze casting. The in situ tensile experiments revealed that the crack initiation mechanism of the indirect squeeze casting alloy is the debonding of the θ-Al2Cu phase at the grain boundaries.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":" 48","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141000166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Element transfer, microhardness and metallurgical analysis of weld-bead using CaF2−CaO−Al2O3−BaO fluxes 使用 CaF2-CaO-Al2O3-BaO 焊剂的焊珠的元素转移、显微硬度和冶金分析
Materials Science and Technology Pub Date : 2024-05-08 DOI: 10.1177/02670836241249456
Aditya Kumar, R. Chhibber
{"title":"Element transfer, microhardness and metallurgical analysis of weld-bead using CaF2−CaO−Al2O3−BaO fluxes","authors":"Aditya Kumar, R. Chhibber","doi":"10.1177/02670836241249456","DOIUrl":"https://doi.org/10.1177/02670836241249456","url":null,"abstract":"This study investigates the influence of shielded metal arc welding electrode coating flux on microhardness, microstructure and element transfer. A series of multi-pass bead-on-plate studies were conducted using laboratory-developed electrodes. The flux composition has shown a significant effect on all the responses. An increase in [Formula: see text] and [Formula: see text] has shown a positive influence on nickel transfer, whereas an increase in [Formula: see text] reduces nickel transfer. The slag detachability was found good for ratio [Formula: see text]:: 1.76:0.73:0.51. Energy dispersive spectroscopy has shown inclusions rich in aluminum and oxygen with trace amounts of Ca, Mn, Ti and Si. Artificial neural network models have been developed and then compared to conventional regression predictions.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":" 31","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140999045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The relationship between austenite stabiliser element and post-weld heat treatment on the corrosion behaviour of the welded duplex stainless steel made by gas tungsten arc welding 奥氏体稳定剂元素和焊后热处理对气体钨极氩弧焊焊接双相不锈钢腐蚀性能的影响
Materials Science and Technology Pub Date : 2024-05-08 DOI: 10.1177/02670836241249829
Ali Tahaei, Behrouz Bagheri Vanani, Mahmoud Abbasi, Matia Merlin, G. L. Garagnani
{"title":"The relationship between austenite stabiliser element and post-weld heat treatment on the corrosion behaviour of the welded duplex stainless steel made by gas tungsten arc welding","authors":"Ali Tahaei, Behrouz Bagheri Vanani, Mahmoud Abbasi, Matia Merlin, G. L. Garagnani","doi":"10.1177/02670836241249829","DOIUrl":"https://doi.org/10.1177/02670836241249829","url":null,"abstract":"The corrosion behaviour and the influence of nickel and post-weld heat treatment (PWHT) on the susceptibility to corrosion in welded duplex stainless steels were investigated. After PWHT, the amount of nickel for the weld region increases resulting in the generation of austenite and consequently, helping to obtain a favourable ferrite-to-austenite ratio. Comparing the experimental outcomes, it is noticed that the pits initiate and propagate in HAZ indicating this area is more susceptible to corrosion resistance compared to the fusion zone. The pitting resistance equivalent number alone is not sufficient reason to study the complex corrosion phenomenon, and the influence of other parameters namely microstructural evolution on the breakdown of passivity by pitting and the existence of intermetallic phases should be determined together.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":" 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141000830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-temperature oxidation behaviours of rare earth-based pyrochlore structured A2B2O7/yttria-stabilized zirconia thermal barrier coatings 稀土基火绿结构 A2B2O7/钇稳定氧化锆隔热涂层的高温氧化行为
Materials Science and Technology Pub Date : 2024-05-02 DOI: 10.1177/02670836241249827
N. Dharuman, M. Arulmozhi, Sathish Kumar Ramachandran, G. Sreedhar
{"title":"High-temperature oxidation behaviours of rare earth-based pyrochlore structured A2B2O7/yttria-stabilized zirconia thermal barrier coatings","authors":"N. Dharuman, M. Arulmozhi, Sathish Kumar Ramachandran, G. Sreedhar","doi":"10.1177/02670836241249827","DOIUrl":"https://doi.org/10.1177/02670836241249827","url":null,"abstract":"Addressing the challenge of cost-effectively synthesizing stable thermal barrier coating materials has been a significant hurdle. This study describes the bulk synthesis of stannate-based pyrochlore compounds, specifically erbium tin oxide (Er2Sn2O7) and yttrium tin oxide (Y2Sn2O7). These synthesized pyrochlore oxides and commercially available yttria-stabilized zirconia (YSZ) were coated onto nickel super alloy. The coated specimens were subjected to thermal oxidation kinetics studies at 900 ± 5°C for 200 h, and alterations in physico-chemical characteristics, modifications in surface morphology, and variations in the composition of thermal barrier coating (TBCs) before and after exposure to oxidation conditions were evaluated. Oxidation kinetics results demonstrate that Er2Sn2O7 pyrochlore oxide has better performance than other Y2Sn2O7 and commercial YSZ TBC materials in high-temperature thermal barrier systems.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":"33 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141021641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Industrial implementation of a next generation advanced high strength steel 新一代先进高强度钢的工业应用
Materials Science and Technology Pub Date : 2024-03-20 DOI: 10.1177/02670836241240893
Shangping Chen, Richard Mostert, Maxim Aarnts
{"title":"Industrial implementation of a next generation advanced high strength steel","authors":"Shangping Chen, Richard Mostert, Maxim Aarnts","doi":"10.1177/02670836241240893","DOIUrl":"https://doi.org/10.1177/02670836241240893","url":null,"abstract":"This study describes a suitable process for manufacture of a cold rolled and continuous annealed advanced high strength steel with a carbide-free bainitic ferrite or quenching and partitioning microstructure in an existing annealing production line. The effect of variations of the main processing parameters on the phase transformation responses and mechanical properties of potential candidate steels was investigated with particular focus on the effect of the overaging temperatures. The relationship between the microstructure and the tensile properties and the hole expansion capacity was scrutinized. In addition to the second phases such as fresh martensite and retained austenite, the non-relaxed strain gradient in the microstructures might be an important parameter to influence the hole expansion capacity.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":"21 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140225928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microstructure evolutions of the Al-Mg and Al-Mg-Sc-Zr alloys during gradient cooling 梯度冷却过程中 Al-Mg 和 Al-Mg-Sc-Zr 合金的微观结构演变
Materials Science and Technology Pub Date : 2024-03-18 DOI: 10.1177/02670836241239784
Zhenglin Fan, Shibiao Zhong, Lingpeng Zeng, Jieyun Ye, Jieke Ren, Jiqiang Chen
{"title":"Microstructure evolutions of the Al-Mg and Al-Mg-Sc-Zr alloys during gradient cooling","authors":"Zhenglin Fan, Shibiao Zhong, Lingpeng Zeng, Jieyun Ye, Jieke Ren, Jiqiang Chen","doi":"10.1177/02670836241239784","DOIUrl":"https://doi.org/10.1177/02670836241239784","url":null,"abstract":"In this work, the microstructure evolution of the Al-Mg and Al-Mg-Sc-Zr alloys during gradient cooling is studied and compared, the effect of the additions of Sc and Zr is also evaluated. The results show that the solidified microstructure of the Al-Mg-Sc-Zr alloy underwent more significant evolution than that of the Al-Mg alloy at gradient cooling rates (6∼438 K/s), and formed two fine grain areas at the cooling rates of around 230 and 6 K/s, respectively. A typical columnar-to-equiaxed grain transition behaviour was discovered at the cooling rate of 300 K/s in Al-Mg-Sc-Zr alloy. The solidified microstructure of the alloys was affected by the coordination effect of the cooling rate and the second phases.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":"221 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140233626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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