Journal of Materials Research and Technology最新文献_第2页

Effect of different oxidation modes on the growth of oxide layer of TC11 titanium alloy 不同氧化模式对 TC11 钛合金氧化层生长的影响

Journal of Materials Research and Technology Pub Date : 2024-09-05 DOI: 10.1016/j.jmrt.2024.09.005

Weiming Li, Zhong Yang, Ping Wang, Lele Liu, Yimeng Wang, Shaoqing Wang, Li Chang, Li Ma

引用次数: 0

Mechanical properties and tensile failure mechanisms of SM400A steel treated by high-power continuous-wave laser 用高功率连续波激光处理 SM400A 钢的机械性能和拉伸破坏机理

Journal of Materials Research and Technology Pub Date : 2024-09-05 DOI: 10.1016/j.jmrt.2024.09.001

Qidi Wang, Shigenobu Kainuma, Shusen Zhuang, Kazuhisa Fujita, Xin Ruan

引用次数: 0

High temperature corrosion of wrought and wire arc additively manufactured 316L stainless steel in a simulated boiler environment 模拟锅炉环境中锻造和线弧加成制造的 316L 不锈钢的高温腐蚀

Journal of Materials Research and Technology Pub Date : 2024-09-05 DOI: 10.1016/j.jmrt.2024.09.017

Muthu Shanmugam Mannan, Changheui Jang

{"title":"High temperature corrosion of wrought and wire arc additively manufactured 316L stainless steel in a simulated boiler environment","authors":"Muthu Shanmugam Mannan, Changheui Jang","doi":"10.1016/j.jmrt.2024.09.017","DOIUrl":"https://doi.org/10.1016/j.jmrt.2024.09.017","url":null,"abstract":"In this decade, the working temperature of the power plants significantly increased to above 700 °C to enhance efficiency. The corrosive species deposits on the hot section components were prone to corrosion damage at elevated temperatures. This study investigates the microstructure and high-temperature corrosion characteristics of the wrought and wire-arc additive manufactured (WAAM) 316L stainless steel in an aggressive molten NaSO + 25% NaCl salt and air environment at 750 °C. The corrosion rate of both wrought and WAAM-built 316L was higher in the molten salt (MS) environment compared to air due to the chloride and sulfate deposits. The wrought 316L was severely prone to corrosion damage with spallation and cracking, which was attributed to the dissolution of the non-protective FeO scale by Cl. The WAAM-built 316L showed the lower oxidation and depth of corrosion attack in both air and MS environments than the wrought steel due to the fine dendrite grains, resulting in the outward diffusion of more Cr. The accelerated degradation occurred on the WAAM and wrought 316L SS in MS condition due to the dissolution of CrO and the faster inward diffusion of Na. The detailed oxide growth, internal corrosion attack, and oxide failure mechanisms of the steels were explored in the air and MS conditions.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179965","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

Multi-grooved channel design in continuous casting mold for enhancing heat transfer efficiency considering pressure drop and flow rate loss 考虑到压降和流速损失，在连铸模中设计多沟槽以提高传热效率

Journal of Materials Research and Technology Pub Date : 2024-09-05 DOI: 10.1016/j.jmrt.2024.09.018

Tianze Zhang, Zhaocheng Wei, Xueqin Wang, Xiuru Li, Minjie Wang

{"title":"Multi-grooved channel design in continuous casting mold for enhancing heat transfer efficiency considering pressure drop and flow rate loss","authors":"Tianze Zhang, Zhaocheng Wei, Xueqin Wang, Xiuru Li, Minjie Wang","doi":"10.1016/j.jmrt.2024.09.018","DOIUrl":"https://doi.org/10.1016/j.jmrt.2024.09.018","url":null,"abstract":"An efficient, speedy, multi-grooved (ESMG) mold was designed and manufactured for optimization to address issues such as low heat transfer rate, slow casting speed, and quality defects in traditional continuous casting molds. The flow resistance mechanism of multi-grooved channels with varying parameters was investigated by considering the ESMG geometric model, the convective heat transfer characteristic variation trends were revealed with different channel designs. Considering constraints of the dimensional chain and supply pressure, variation trends and mechanisms of the pressure drop, flow rate loss, and convective heat transfer coefficient of the ESMG mold were explored using multiple channel variables. Based on the numerical model of the ESMG channel, temperature variation trends in the copper mold were verified by comparison with relevant literature data, supporting the convective-heat-transfer model and variation trends of the ESMG mold. A high-efficiency heat-transfer ESMG assembly that casts U71Mn high-carbon large rectangular billets was fabricated, achieving a closed-loop dimensional chain and replacing traditional molds. Experimental validation on the continuous casting machine (CCM) proved directly that redesigning the ESMG mold cooling channel improved heat transfer efficiency and reduced CO emissions. After 504 h on the CCM, the ESMG mold casting speed increased from 1.1 to 1.6 m/min, the heat transfer efficiency was 17.6% higher than that of traditional molds and CO emissions were estimated to decrease by 31.2%. The billets produced by the ESMG mold had no quality defects in shape or surface with the original casting conditions, which provided enhanced support for accelerating continuous casting lines.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179959","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

Strain effects on corrosion inhibition in stress corrosion of tubing steel 钢管应力腐蚀中应变对缓蚀的影响

Journal of Materials Research and Technology Pub Date : 2024-09-03 DOI: 10.1016/j.jmrt.2024.09.010

Huaiyun Cui, Lin Lu, Zhiyong Liu

{"title":"Strain effects on corrosion inhibition in stress corrosion of tubing steel","authors":"Huaiyun Cui, Lin Lu, Zhiyong Liu","doi":"10.1016/j.jmrt.2024.09.010","DOIUrl":"https://doi.org/10.1016/j.jmrt.2024.09.010","url":null,"abstract":"In this investigation, we explored the corrosion inhibition mechanism of an imidazoline quaternary ammonium salt (IQA) on J55 steel in simulated annulus environment through a series of experiments, including electrochemical testing, stress corrosion immersion experiments, and hydrogen permeation testing. Our findings reveal that IQA functions as a mixed-type inhibitor, exerting its inhibitory action through chemical adsorption. Notably, it exhibits a stronger inhibitory effect on the anodic dissolution reaction compared to the cathodic hydrogen evolution reaction. Despite the minor influence of tensile plastic strain on the average inhibition efficiency, it notably exacerbates pitting and initiates stress corrosion cracking. This underscores the limitation of average inhibition efficiency in accurately assessing IQA's efficacy against stress corrosion. Additionally, hydrogen permeation experiments and electrochemical testing demonstrate that plastic strain diminishes IQA's inhibitory effect on the cathodic hydrogen evolution reaction, facilitating hydrogen diffusion into the steel substrate and thereby exacerbating stress corrosion in J55 steel. Consequently, at low IQA inhibitor concentrations (as in this study, 12.5 mg L), despite high average inhibition efficiency, it proves ineffective in mitigating stress corrosion.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179972","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 in-situ forging assisted squeeze casting on the forming quality and mechanical properties of automobile control arm 原位锻造辅助挤压铸造对汽车控制臂成型质量和机械性能的影响

Journal of Materials Research and Technology Pub Date : 2024-09-03 DOI: 10.1016/j.jmrt.2024.09.009

Wenbin Zhan, Tiantai Tian, Hongtu Xu, Bingli Hua, Liqun Niu, Bo Cui, Qi Zhang

{"title":"Effect of in-situ forging assisted squeeze casting on the forming quality and mechanical properties of automobile control arm","authors":"Wenbin Zhan, Tiantai Tian, Hongtu Xu, Bingli Hua, Liqun Niu, Bo Cui, Qi Zhang","doi":"10.1016/j.jmrt.2024.09.009","DOIUrl":"https://doi.org/10.1016/j.jmrt.2024.09.009","url":null,"abstract":"The squeeze casting technique offers promising prospects for a wide range of applications, as it provides an effective solution to address the challenges associated with the poor casting performance of wrought aluminum alloys. In this paper, we implemented in-situ forging assisted squeeze casting (IFSC) to form an automobile control arm using a high-strength Al–Zn–Mg–Cu alloy modified with Zr and Er. The solidification defects, microstructures, and mechanical properties of the part were investigated under different pressures and in-situ forging using various analytical techniques. With the increase of squeezing pressure from 0 MPa to 120 MPa, the ultimate tensile strength (UTS) of the sample increases from 500 MPa to 593.3 MPa, and the elongation is 4.35 %. After in-situ forging, the tensile strength of the sample is 600.9 MPa and the elongation is 5.59 %. UTS is comparable to squeeze casting, but the elongation is increased by 28.5 %. The results indicate that increasing the forming pressure enhances the surface quality of the parts and reduces the solidification defects. In addition, increasing the forming pressure not only refines the grain but also improves the grain morphology and enhances the uniformity of the structure. The squeezing pressure can enhance the contact between the alloy melt and the mold, increasing the metal's cooling rate and promoting nucleation for grain refinement. In-situ forging further facilitates liquid phase feeding, reduces alloy defects, and improves the overall mechanical properties.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179964","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 evolution and property enhancement of CuCr50 alloys through the synergistic effects by hot-forging deformation and heat treatment 通过热锻变形和热处理的协同效应实现 CuCr50 合金的微观结构演变和性能提升

Journal of Materials Research and Technology Pub Date : 2024-09-03 DOI: 10.1016/j.jmrt.2024.08.182

Wang An, Zhihe Dou, Tingan Zhang, Jinru Han

{"title":"Microstructure evolution and property enhancement of CuCr50 alloys through the synergistic effects by hot-forging deformation and heat treatment","authors":"Wang An, Zhihe Dou, Tingan Zhang, Jinru Han","doi":"10.1016/j.jmrt.2024.08.182","DOIUrl":"https://doi.org/10.1016/j.jmrt.2024.08.182","url":null,"abstract":"In this study, CuCr50 alloys were prepared by aluminum thermal reduction-high frequency refining process, and the properties were improved through hot forging and heat treatment. With increasing deformation, large Cr particles were spheroidized and refined, significantly improving the performance of the alloy. When the deformation exceeds 27%, the conductivity reaches 17.73 MS/m, the hardness reaches 116.5 HB, and the density reaches 7.91 g/cm. After solution at 975 °C for 1h and aging at 550 °C for 4h, the conductivity of the CuCr50 alloy further increased to 19.63 MS/m, the hardness reaches 121.5 HB. Compared with the as-cast alloy, the conductivity, hardness and density are increased by 71.07%, 18.81% and 2.99%, respectively. In the 5% deformed CuCr50 alloy the precipitates of nanoscale Cr particles formed a co-lattice with the copper matrix. In the 14% deformed CuCr50 alloy, nanoscale Cr particles precipitated and dispersed in the Cu matrix, and the relationship between the precipitated Cr phase and the Cu matrix was incoherent. The amount of precipitated Cr phase in the 27% deformed CuCr50 alloy had a semi-coherent relationship with the Cu matrix, the orientations of Cu()//Cr(110). The hardness enhancement is mainly attributed to grain refinement and density increase, and the conductivity enhancement is mainly attributed to Cr particle precipitation after aging treatment.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179994","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

Titanium dioxide/graphene oxide synergetic reinforced composite phase change materials with excellent thermal energy storage and photo-thermal performances 具有优异热能储存和光热性能的二氧化钛/氧化石墨烯协同增强复合相变材料

Journal of Materials Research and Technology Pub Date : 2024-09-03 DOI: 10.1016/j.jmrt.2024.09.011

Tingfeng Xia, Bojing Wu, Huanzhi Zhang, Fen Xu, Lixian Sun, Xiangcheng Lin, Caihang Liang, Lei Ma, Hongliang Peng, Bin Li, Erhu Yan

{"title":"Titanium dioxide/graphene oxide synergetic reinforced composite phase change materials with excellent thermal energy storage and photo-thermal performances","authors":"Tingfeng Xia, Bojing Wu, Huanzhi Zhang, Fen Xu, Lixian Sun, Xiangcheng Lin, Caihang Liang, Lei Ma, Hongliang Peng, Bin Li, Erhu Yan","doi":"10.1016/j.jmrt.2024.09.011","DOIUrl":"https://doi.org/10.1016/j.jmrt.2024.09.011","url":null,"abstract":"The development of advanced composite solid-solid phase change materials (SSPCMs) is urgent to explore for improving solar energy harvesting and storage. Herein, novel composite SSPCMs with synergetic cross-linking structure were fabricated through polymerization using GO and TiO constructed on the polyurethane framework skeleton. GO and TiO synergetic enhanced polymer framework played a role as skeletal structure to encapsulate PEG in the molecular chains, and provided as highly thermal conductive pathways for the composite SSPCMs. TiO nanoparticles performed as extended surface on the skeletal structure for further improvement in thermal conductivity. The composite SSPCMs exhibited a remarkably improved thermal conductivity as high as 0.7 W/(m‧K) and fast thermal response rate. The good light adsorption property of TiO enhanced the light absorbance efficiency of the composite SSPCMs by 94.4%. And the photo-thermal conversion efficiency of the composite SSPCMs highly reached 93.5%. Meanwhile, the composite SSPCMs exhibited excellent anti-leakage performance and shape stability under high temperature. Consequently, the as-prepared composite SSPCMs possessed a potential for applications in thermal energy storage and solar energy utilization systems.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179963","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

Variation in microstructural features of melt-pool structure in laser powder bed fused Al–Fe–Cu alloy at elevated temperatures 高温下激光粉末床熔融 Al-Fe-Cu 合金熔池结构的微观结构特征变化

Journal of Materials Research and Technology Pub Date : 2024-09-03 DOI: 10.1016/j.jmrt.2024.09.013

Yue Cheng, Takanobu Miyawaki, Wenyuan Wang, Naoki Takata, Asuka Suzuki, Makoto Kobashi, Masaki Kato

{"title":"Variation in microstructural features of melt-pool structure in laser powder bed fused Al–Fe–Cu alloy at elevated temperatures","authors":"Yue Cheng, Takanobu Miyawaki, Wenyuan Wang, Naoki Takata, Asuka Suzuki, Makoto Kobashi, Masaki Kato","doi":"10.1016/j.jmrt.2024.09.013","DOIUrl":"https://doi.org/10.1016/j.jmrt.2024.09.013","url":null,"abstract":"The present study was undertaken to understand the effect of annealing on the microstructural features of the melt-pool structure and the associated multiscale mechanical properties of the Al–2.5%Fe–2%Cu alloy manufactured by laser powder bed fusion (LPBF). Microstructural characterizations and tensile tests were conducted for the LPBF-built specimen and those subsequently annealed at various temperatures ranging from 200 to 500 °C. Nanoindentation hardness mapping was used to evaluate the mechanical inhomogeneity of the melt-pool structure and its changes by annealing at different temperatures. The LPBF-manufactured sample exhibited a melt-pool structure containing numerous particles of the AlCuFe phase (28, orthorhombic structure) formed because of local melting and rapid solidification during the LPBF process. The relatively coarsened cellular structure localized along the melt-pool boundary resulted in local soft regions. The local vulnerability contributed to the direction dependence of the tensile ductility. A slight variation was observed in the inhomogeneous microstructure of the samples annealed at 200 or 300 °C. The formation of numerous AlCuFe nanoprecipitates in the α-Al supersaturated solid solution prevented strength loss after post-heat treatments. In addition, considerable coarsening of the intermetallic phase after annealing at 500 °C eliminated the melt-pool structure. The tensile performance of the specimens demonstrated a ductile fracture mode, wherein ductile fracture occurred in the α-Al matrix with low hardness while the harder θ-AlFe stable phase was embedded within it. The anisotropy in the mechanical properties was less pronounced owing to the significant microstructural changes.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179960","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

Cooling rate effects on microstructure and diffusion behaviour in Ti65 alloy: Insights from a modified diffusion model 冷却速率对 Ti65 合金微观结构和扩散行为的影响：改良扩散模型的启示

Journal of Materials Research and Technology Pub Date : 2024-09-03 DOI: 10.1016/j.jmrt.2024.09.012

Ding Zhao, Jiangkun Fan, Zesen Chen, Wenyuan Zhang, Zhixin Zhang, Bin Tang, Jian Wang, Hongchao Kou, Jinshan Li

{"title":"Cooling rate effects on microstructure and diffusion behaviour in Ti65 alloy: Insights from a modified diffusion model","authors":"Ding Zhao, Jiangkun Fan, Zesen Chen, Wenyuan Zhang, Zhixin Zhang, Bin Tang, Jian Wang, Hongchao Kou, Jinshan Li","doi":"10.1016/j.jmrt.2024.09.012","DOIUrl":"https://doi.org/10.1016/j.jmrt.2024.09.012","url":null,"abstract":"In the continuous cooling process, the growth of the equiaxed α-phase grains in near-α high-temperature titanium alloys is controlled by the diffusion of alloying elements. Establishing a specific connection between the cooling rate and the diffusion behaviour of alloying elements aids in the precise prediction of the evolution of equiaxed α-phase grain size. This study meticulously controlled the cooling rate during the two-phase region annealing treatment of the Ti65 alloy. Using EPMA technology, the diffusion behaviour of solute elements during cooling was accurately characterized. The study found that slowing the cooling rate promotes the coarsening of the lamellar secondary α-phase grains and the growth of the primary equiaxed α-phase grains. At higher annealing temperatures, the growth of equiaxed α-phase grains can occur at faster cooling rates, while coarse lamellar secondary α-phase grains can be retained at slower cooling rates. The diffusion behaviour of solute elements Al, Ta, Mo, and W between the α-phase and transformed β-phase matrix is significantly influenced by the cooling rate, thus they are considered as the controlling elements for the growth of the equiaxed α-phase grains. Based on the diffusion behaviours of these controlling elements, their single-element diffusion models were categorized and integrated for predicting the grain size of the equiaxed α-phase. The predictions from the revised diffusion model show an excellent agreement with the actual results, with an error margin of about 5%.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179981","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