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ZK60 alloy deformation and damage at different temperatures using unified constitutive model 使用统一构成模型分析不同温度下 ZK60 合金的变形和损伤
Materials Science and Technology Pub Date : 2024-07-23 DOI: 10.1177/02670836241261573
Chaoyang Sun, Fangjia Liu, Yang Liu, Sinuo Xu, L. Qian, Linghui Meng, Chunhui Wang
{"title":"ZK60 alloy deformation and damage at different temperatures using unified constitutive model","authors":"Chaoyang Sun, Fangjia Liu, Yang Liu, Sinuo Xu, L. Qian, Linghui Meng, Chunhui Wang","doi":"10.1177/02670836241261573","DOIUrl":"https://doi.org/10.1177/02670836241261573","url":null,"abstract":"The deformation behaviour and damage mechanism of ZK60 magnesium alloy under temperatures of 25–140 °C and strain rates of 0.01–0.0001 s−1 were investigated by uniaxial hot tensile and characterization experiments. The results suggested that the main factor for damage in ZK60 magnesium alloy was the nucleation, growth and coalescence of microdefects such as microvoids and cracks around the second-phase particles and/or grain boundaries. Then, a unified constitutive model including damage evolution, work hardening and recovery mechanisms was established. The model, verified by experimental data, shows good predictability. It was implemented into ABAQUS software through the VUMAT subroutine, which then predicted and analyzed the microstructure evolution.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":"50 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141810587","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
Influence of CMT welding parameters on microstructural and properties investigation of dissimilar weld joint for aluminum bronze and carbon steel CMT 焊接参数对铝青铜和碳钢异种焊接接头微观结构和性能研究的影响
Materials Science and Technology Pub Date : 2024-07-23 DOI: 10.1177/02670836241261464
Mahadevan G, Senthilkumar Tamilkolundhu, Francis Xavier Josephraj, Ramasamy N
{"title":"Influence of CMT welding parameters on microstructural and properties investigation of dissimilar weld joint for aluminum bronze and carbon steel","authors":"Mahadevan G, Senthilkumar Tamilkolundhu, Francis Xavier Josephraj, Ramasamy N","doi":"10.1177/02670836241261464","DOIUrl":"https://doi.org/10.1177/02670836241261464","url":null,"abstract":"Cold Metal Transfer (CMT) welding technology has improved the appearance of weld beads and revolutionized the welding of thicker materials and dissimilar metals with precise metal deposition and reduced heat input. Cold Metal Transfer welding is predominantly used in a variety of industry applications, including aerospace, shipbuilding, automotive and marine industries. In this study, aluminum bronzes and carbon steel were joined by using CMT welding, a variant of the Gas Metal Arc Welding process, with ERCuAl-A2 as the filler metal. Optical microscopy was used to examine the microstructure of the CMT weld joint between aluminum bronze and carbon steel. Results have indicated that dissimilar metals such as aluminum bronze, and carbon steel could be successfully joined by CMT under various processing parameters. The tensile and bending strengths of the dissimilar joint were 490 MPa and 822 MPa, respectively. A variety of intermetallic compounds and solid solutions were generated in the weld zone and fusion zone. The micro-hardness in the carbon steel side of the fusion zones increased sharply, which was 164 HV in the welded condition. The dissimilar joint was stronger than the carbon steel, as the ductile fracture occurred on the carbon steel during the transverse tensile test of the welded specimen. The microstructure interpretation of welded dissimilar joints was analyzed by scanning electron microscopy and transmission electron microscopy.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":"35 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141813906","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
Numerical and experimental studies on dissimilar joining of Hastelloy C-276 and SS-316L using microwave hybrid heating at 2.45 GHz 利用 2.45 GHz 微波混合加热对哈氏合金 C-276 和 SS-316L 异种连接的数值和实验研究
Materials Science and Technology Pub Date : 2024-06-11 DOI: 10.1177/02670836241259848
Kadapa Vijaya Bhaskar Reddy, K. H. Shankar, Venkatesh Gudipadu, Radha Raman Mishra
{"title":"Numerical and experimental studies on dissimilar joining of Hastelloy C-276 and SS-316L using microwave hybrid heating at 2.45 GHz","authors":"Kadapa Vijaya Bhaskar Reddy, K. H. Shankar, Venkatesh Gudipadu, Radha Raman Mishra","doi":"10.1177/02670836241259848","DOIUrl":"https://doi.org/10.1177/02670836241259848","url":null,"abstract":"Dissimilar joints of SS-316L and C-276 (Hastelloy) were developed using C-276 powder with microwave exposure 600 s in microwave applicator (2.45 GHz, 900 W). A multi-physics model was validated with experimental studies and simulation were carried out to analyse the microwave-joint interaction characteristics. The simulation results showed that a concentrated electric field (5.86 × 104 V/m) and higher resistive losses (3.07 × 107 W/m3) at the joint region facilitated rapid heat generation locally. Microstructural characterization of the joint revealed the formation of cellular grains such as Fe-Ni intermetallic phases with Mo, Cr and W-carbides along the grain boundaries. Joints exhibited average microhardness of 290 HV, and tensile strength of 425 ± 10 MPa and 14% elongation with failure due to both ductile and brittle fracture modes.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":"5 26","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141356882","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 influence of traction speed on the microstructure and properties of vacuum horizontal continuous casting Cu–5Fe–0.15Sn alloy 牵引速度对真空水平连铸 Cu-5Fe-0.15Sn 合金微观结构和性能的影响
Materials Science and Technology Pub Date : 2024-06-11 DOI: 10.1177/02670836241256842
Guihuan An, Xianglong Xu, Lanhao Wang, Cheng-jun Guo, Qichao Hu, Dawei Yuan, Jinshui Chen, Bin Yang
{"title":"The influence of traction speed on the microstructure and properties of vacuum horizontal continuous casting Cu–5Fe–0.15Sn alloy","authors":"Guihuan An, Xianglong Xu, Lanhao Wang, Cheng-jun Guo, Qichao Hu, Dawei Yuan, Jinshui Chen, Bin Yang","doi":"10.1177/02670836241256842","DOIUrl":"https://doi.org/10.1177/02670836241256842","url":null,"abstract":"The Cu–5Fe–0.15Sn alloy was prepared using the vacuum horizontal continuous casting method, followed by comprehensive microstructural analysis using optical microscopy (OM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results highlight a significant impact of traction speed on both microstructure and properties. As traction speed increases, there is a notable reduction in the size of primary Fe phases, leading to a more uniform distribution of Fe phases. Initially, hardness experiences an increase followed by a subsequent decrease, while electrical conductivity exhibits an inverse trend. The dendritic and globular Fe phases undergo a transition into Fe fibres following multi-stage deformation heat treatment. Furthermore, the Fe fibres and precipitated Fe phases exhibit smaller, denser, and more uniformly distributed characteristics with increasing traction speed. At a traction speed of 0.15 m/min, the Cu–5Fe–0.15Sn alloy showcases peak tensile strength and electrical conductivity values of 826 MPa and 67% IACS, respectively. These values surpass those attained through other traction processes, indicating superior overall performance of the alloy fabricated at a traction speed of 0.15 m/min.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":"9 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141360448","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
Elasticity, acoustic loss and γ′ dissolution in superalloys from resonant ultrasound spectroscopy 通过共振超声波谱分析超合金中的弹性、声波损耗和 γ′溶解度
Materials Science and Technology Pub Date : 2024-06-11 DOI: 10.1177/02670836241254948
SL Driver, Jfs Markanday, K. Christofidou, PM Mignanelli, H. Stone, MA Carpenter
{"title":"Elasticity, acoustic loss and γ′ dissolution in superalloys from resonant ultrasound spectroscopy","authors":"SL Driver, Jfs Markanday, K. Christofidou, PM Mignanelli, H. Stone, MA Carpenter","doi":"10.1177/02670836241254948","DOIUrl":"https://doi.org/10.1177/02670836241254948","url":null,"abstract":"The high temperature acoustic loss and elastic moduli of the Ni-based superalloys RR1000, Waspaloy, and Allvac® 718Plus™ were investigated using resonant ultrasound spectroscopy. An exponential increase in acoustic loss was seen in all alloys, which was viscoelastic in character with an activation energy of ∼ 200–400 kJ.mol−1, similar to that of the self-diffusion of Ni. The magnitude of the loss was found to be proportional to d−0.85, where d is the grain size. Deviations from the high temperature background were seen in Waspaloy and 718Plus around their γ′ solvus temperatures, attributed to increased diffusion during γ′ dissolution. It is suggested that acoustic loss in Ni-based alloys may be used as a means of determining the γ′ solvus temperatures.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":"31 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141357465","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 strain on the adiabatic shear behaviour of AZ31 magnesium alloy 应变对 AZ31 镁合金绝热剪切行为的影响
Materials Science and Technology Pub Date : 2024-06-11 DOI: 10.1177/02670836241255852
Wenrui Guo, Le Zhou, P. Mao, Zhi Wang, Fengjuan Wang, Ziqi Wei
{"title":"Effect of strain on the adiabatic shear behaviour of AZ31 magnesium alloy","authors":"Wenrui Guo, Le Zhou, P. Mao, Zhi Wang, Fengjuan Wang, Ziqi Wei","doi":"10.1177/02670836241255852","DOIUrl":"https://doi.org/10.1177/02670836241255852","url":null,"abstract":"The effect of strain on the adiabatic shear behaviour of AZ31 magnesium alloy under high strain rate compression was studied using split Hopkinson pressure bar (SHPB). The microstructure of the specimen was characterised using optical microscopy and electron backscatter diffraction. The results indicate that the adiabatic shear sensitivity increased with the strain. The microstructure evolution of adiabatic shear deformation has been investigated. Firstly, a large number of twins and dislocations are formed and accumulate in the early stage of deformation. Subsequently, they transform into dynamic recrystallised grains, forming an adiabatic shear band (ASB) and ultimately leading to crack formation. The dynamic recrystallisation mechanism in the ASB involves twinning-induced dynamic recrystallisation (TDRX) and rotational dynamic recrystallisation (RDRX). This study has analysed the ASB mechanism, which provides a foundation for material selection and the design of magnesium alloys.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":"19 23","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141356601","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
Research progress on thermal aging of reactor pressure vessel steel 反应堆压力容器钢热老化研究进展
Materials Science and Technology Pub Date : 2024-06-06 DOI: 10.1177/02670836241259859
Junkang Gao, Jun Li, Junwan Li, Shaohong Li, Zhimin Li
{"title":"Research progress on thermal aging of reactor pressure vessel steel","authors":"Junkang Gao, Jun Li, Junwan Li, Shaohong Li, Zhimin Li","doi":"10.1177/02670836241259859","DOIUrl":"https://doi.org/10.1177/02670836241259859","url":null,"abstract":"Nuclear energy is highly valued in many countries for its reliability, cleanliness and cost-effectiveness. Ensuring the safe development and utilization of nuclear energy has become crucial for addressing the global energy shortage and mitigating climate change. The reactor pressure vessel (RPV) is exposed to a high-temperature, high-corrosion and high-radiation environment, the RPV materials have a significant impact on the stability and safety of a nuclear power station. In this paper, the effects of long-term high-temperature hot aging on microstructure and mechanical properties of RPV steel, as well as the research progress in embrittlement mechanism and service life prediction, are reviewed. At the same time, the existing problems and further research directions of RPV steel are pointed out.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":"312 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141381227","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
Research on grain refinement and tensile properties strengthening of screw rolled MgO/Mg-Zn-Ca composites 螺旋轧制氧化镁/镁锌钙复合材料的晶粒细化和拉伸性能强化研究
Materials Science and Technology Pub Date : 2024-06-05 DOI: 10.1177/02670836241259866
Haoran Zheng, Zhixuan Zhang, Minfang Chen
{"title":"Research on grain refinement and tensile properties strengthening of screw rolled MgO/Mg-Zn-Ca composites","authors":"Haoran Zheng, Zhixuan Zhang, Minfang Chen","doi":"10.1177/02670836241259866","DOIUrl":"https://doi.org/10.1177/02670836241259866","url":null,"abstract":"Herein, a gradient microstructure with an average grain size of 1.27 μm was obtained for 0.5MgO/Mg-3Zn-0.2Ca (wt.%) composites through screw rolling. Results show that screw rolling improved the comprehensive tensile properties of the composites, with the yield strength, ultimate tensile strength and elongation increasing from 167.3 MPa, 247.7 MPa and 27.4% to 256.6 MPa, 284.1 MPa and 40.6%, respectively, after eight deformation passes. The strength increments are primarily attributed to fine-grain strengthening. Further, the plasticity of the composites increased with increasing number of deformation passes because of the texture weakening and strain hardening decrement resulting from continuous dynamic recrystallisation. Overall, this study lays a foundation for research on magnesium matrix composites and their application in the field of biomedical materials.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":"9 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141383479","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
Crack initiation and propagation in Ti-6Al-4V-0.55Fe alloy subjected to the low-cycle dwell-fatigue 低循环驻留疲劳下 Ti-6Al-4V-0.55Fe 合金的裂纹萌生和扩展
Materials Science and Technology Pub Date : 2024-05-16 DOI: 10.1177/02670836241251573
Hui Du, Baofei Liu, Qinghua Deng, Wanli Ren, Feng Li, Liang Feng, Hui Chang, Jie Ding
{"title":"Crack initiation and propagation in Ti-6Al-4V-0.55Fe alloy subjected to the low-cycle dwell-fatigue","authors":"Hui Du, Baofei Liu, Qinghua Deng, Wanli Ren, Feng Li, Liang Feng, Hui Chang, Jie Ding","doi":"10.1177/02670836241251573","DOIUrl":"https://doi.org/10.1177/02670836241251573","url":null,"abstract":"This paper investigated the crack initiation and propagation behaviour of Ti-6Al-4V-0.55Fe alloy under the low-cycle dwell-fatigue. It found that cracks were preferred to initiate at the α/β-phase boundaries, the α/α-phase boundaries, and the twinning boundaries within the α-phase. Twinning played a key role in the crack initiation, for the reason that it changed the phase orientation on its sides. Besides, grain orientation was another important factor in the crack nucleation. The soft/hard grain boundaries may become the crack nucleation sites due to the dislocation pile-up. In addition, as the dwell time increased, the fraction of the high Schmid factor of prismatic slip was increasing, which resulted in more cracks. Furthermore, the fracture mode of the alloy was intergranular fracture with microporous aggregation.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":"37 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140969684","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 effect of pre-deformation on the mechanical properties of Al–Li–Cu + TiC/TiB2 alloy 预变形对 Al-Li-Cu + TiC/TiB2 合金机械性能的影响
Materials Science and Technology Pub Date : 2024-05-16 DOI: 10.1177/02670836241253480
Yuwan Du, Chenghao Dong, Yong Li, Jinghang Zhao, Xuefeng Zhang, Zhe Wang, Haiyao Wang
{"title":"The effect of pre-deformation on the mechanical properties of Al–Li–Cu + TiC/TiB2 alloy","authors":"Yuwan Du, Chenghao Dong, Yong Li, Jinghang Zhao, Xuefeng Zhang, Zhe Wang, Haiyao Wang","doi":"10.1177/02670836241253480","DOIUrl":"https://doi.org/10.1177/02670836241253480","url":null,"abstract":"In this study, Al–Li alloys containing TiC + TiB2 particles were successfully prepared by mechanical stirring method. The alloy organisation and nanoparticles were investigated by scanning electron microscopy (SEM) and electron probe microanalyser (EPMA). The number of T1 phases in the alloy matrix after different pre-deformation was investigated by transmission electron microscopy (TEM). The results showed that TiC and TiB2 acted as nucleation plasmas for grains during solidification, promoting non-uniform nucleation and refining the grains in the 0.5 samples, the main recrystallisation mechanism of the alloy during solidification was the particle-stimulated nucleation (PSN) mechanism, and the incorporation of nanoparticles improved the recrystallisation resistance of the alloy, while the yield strength of the alloy firstly increased and then decreased as the amount of pre-deformation increased, and the best tensile properties occurred The yield strength and tensile strength of 0.5 samples after 5% pre-deformation were 580 MPa and 603 MPa, respectively.","PeriodicalId":516293,"journal":{"name":"Materials Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140967291","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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