Materials Evaluation最新文献_第7页

Multiscale Mixed Modality Microstructure Assessment for Titanium (M4AT) Data Set 钛（M4AT）数据集的多尺度混合模态微观结构评估

IF 0.6 4区材料科学

Materials Evaluation Pub Date : 2022-08-01 DOI: 10.32548/2022.me-04274

J. Wertz, M. Cherry, Sean O'Rourke, Laura Homa, Nick Lorenzo, Erik Blasch

引用次数: 0

Application of the Reverse Time Migration Method to Ultrasonic Nondestructive Imaging for Anisotropic Materials 逆时偏移法在各向异性材料超声无损成像中的应用

IF 0.6 4区材料科学

Materials Evaluation Pub Date : 2022-08-01 DOI: 10.32548/2022.me-04244

H. Mizota, Y. Amano, K. Nakahata

引用次数: 2

Simulation of Tomographic Acquisition and Reconstruction Slice for Industrial Machine Rotor with Fixed-Angle Scanner 工业机械转子定角扫描仪层析采集与重建切片仿真

IF 0.6 4区材料科学

Materials Evaluation Pub Date : 2022-08-01 DOI: 10.32548/2022.me-04263

M. R. Ahmedbacha, A. Benouar, A. Khorsi, N. Akermi, K. Kaddouri

引用次数: 0

An Experimental Study on Phased Array Ultrasonic Testing for Internal Inspection of Gas Storage Wells 相控阵超声检测在储气井内部检测中的实验研究

IF 0.6 4区材料科学

Materials Evaluation Pub Date : 2022-08-01 DOI: 10.32548/2022.me-04278

Zheng Yanchun, Miao Cunjian, Hong Lixiang, Guo Weican

引用次数: 0

Study of Deformation Behavior of AISI 1025 Carbon Steel with Different Microstructures Using Metal Magnetic Memory and Acoustic Emission Testing 基于金属磁记忆和声发射测试的不同组织AISI 1025碳钢变形行为研究

IF 0.6 4区材料科学

Materials Evaluation Pub Date : 2022-06-01 DOI: 10.32548/2022.me-04195

W. Singh, CK Mukhopadhyay

{"title":"Study of Deformation Behavior of AISI 1025 Carbon Steel with Different Microstructures Using Metal Magnetic Memory and Acoustic Emission Testing","authors":"W. Singh, CK Mukhopadhyay","doi":"10.32548/2022.me-04195","DOIUrl":"https://doi.org/10.32548/2022.me-04195","url":null,"abstract":"Studies are carried out to investigate the tensile deformation behavior of AISI-type 1025 carbon steel with different microstructures using metal magnetic memory and acoustic emission testing (AE) techniques. Seven AISI 1025 carbon steel specimens were heat treated for different microstructures and then subjected to tensile deformation until fracture. AE was conducted during tensile deformation and the deformation-induced self-magnetic leakage fields (SMLFs) were measured using a giant magneto-resistive sensor after unloading. Results reveal that SMLF signal values are influenced by microstructure and residual stress aroused due to plastic deformation. Among different specimens, SMLF signal peak amplitude is highest in the brine-quenched specimen followed by the tempered specimen, while hardness is highest in the brine-quenched specimen. SMLF signal peak amplitude and hardness are the lowest in the annealed specimen. SMLF signal is higher in tempered specimens compared to the untempered specimens. From AE measurements, it is observed that martensitic steel emits higher acoustic emissions during deformation but decreases when tempered. The acoustic emissions generated in the martensitic steel are also of higher amplitude. The results are correlated with optical micrographs and hardness measurements.","PeriodicalId":49876,"journal":{"name":"Materials Evaluation","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47998739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

In Situ Process Monitoring: A Perspective on the Role of In Situ Process Monitoring in the Certification of Additive Manufactured Space Hardware 现场过程监控：从现场过程监控在增材制造航天硬件认证中的作用看

IF 0.6 4区材料科学

Materials Evaluation Pub Date : 2022-04-01 DOI: 10.32548/2022.me-04261

Erin Lanigan

引用次数: 1

A Perspective of The Needs and Opportunities for Coupling Materials Science and Nondestructive Evaluation for Metals-Based Additive Manufacturing 金属增材制造中材料科学与无损评价耦合的需求与机遇

IF 0.6 4区材料科学

Materials Evaluation Pub Date : 2022-04-01 DOI: 10.32548/2022.me-04256

MJ Quintana, Y. Ji, P. Collins

引用次数: 1

Thermal Calibration of Ratiometric, On-Axis Melt Pool Monitoring Photodetector System Using Tungsten Strip Lamp 基于钨带灯的比率式轴上熔池监测光电探测器系统的热校准

IF 0.6 4区材料科学

Materials Evaluation Pub Date : 2022-04-01 DOI: 10.32548/2022.me-04271

Brett G. Diehl, A. Castro, Lars Jaquemetton, D. Beckett

{"title":"Thermal Calibration of Ratiometric, On-Axis Melt Pool Monitoring Photodetector System Using Tungsten Strip Lamp","authors":"Brett G. Diehl, A. Castro, Lars Jaquemetton, D. Beckett","doi":"10.32548/2022.me-04271","DOIUrl":"https://doi.org/10.32548/2022.me-04271","url":null,"abstract":"In situ melt pool monitoring is a set of technologies widely deployed on industrial, metals-based laser powder bed fusion (LPBF) additive manufacturing (AM) systems. This study investigates the use of a calibrated tungsten ribbon lamp as a reference standard to calibrate a photodetector based, on-axis melt pool monitoring system. Calibration demonstrates two functions: (a) enable a reference for measuring and ensuring system repeatability, and (b) enable reference to physical temperature values based on the measured photodetector signals. The second function is explored in this paper. A regression-based model is derived based on bichromatic Planck thermometry theory. The calibrated tungsten lamp is then placed within a LPBF system, and resulting photodetector signals are measured at different lamp temperature set points to calibrate the model. Finally, several additional characterization tests and their results are presented verifying the temporal response of the lamp, measurement noise as a function of sampling time, and spectroscopic measurements of the LPBF optics and their potential effect on temperature calibration. A framework is also developed to normalize temperature readings across the build plate to remove location-dependent optical artifacts.","PeriodicalId":49876,"journal":{"name":"Materials Evaluation","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49665215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1

Thermocouple Process Monitoring for Additive Manufacturing 增材制造热电偶过程监控

IF 0.6 4区材料科学

Materials Evaluation Pub Date : 2022-04-01 DOI: 10.32548/2022.me-04243

S. Kenderian, Tait D. McLouth, Dhruvish Y. Patel, Julian R. Lohser

{"title":"Thermocouple Process Monitoring for Additive Manufacturing","authors":"S. Kenderian, Tait D. McLouth, Dhruvish Y. Patel, Julian R. Lohser","doi":"10.32548/2022.me-04243","DOIUrl":"https://doi.org/10.32548/2022.me-04243","url":null,"abstract":"To understand the thermal history of parts manufactured in a laser powder bed fusion system, eight thermocouple sensors were imbedded at key locations with respect to the parts being built. The design comprised eight vertical cylinders 2.54 cm (1 in.) and 1.27 cm (0.5 in.) in diameter and four 2.54 cm (1 in.) horizontal cylinders. The temperature signature collected at the eight locations reveals the time intervals of depositing and melting each layer and the cooling trend associated with the stoppage required for filter cleaning. The temperature profile also reveals a fast rate of heat accumulation at the start of the process. As more layers are melted and the part becomes taller, the dissipation path for heat deposited by the laser increases prior to reaching the build plate. The heat accumulation, therefore, increases rapidly at first, then decreases, plateaus, and then drops slightly toward the end. Distortions due to residual stresses and resultant part separation from the build plate can be deduced from the thermal signature as detected by the thermocouple sensors. This allows the manufacturer to make adjustments or abort the process if necessary. Otherwise, these distortions that render the part a reject are discovered hours or days later upon completion of the additively manufactured part.","PeriodicalId":49876,"journal":{"name":"Materials Evaluation","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44335451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Ultrasonic Characterization of Porosity in Components Made by Binder Jet Additive Manufacturing 粘结剂喷射增材制造组件孔隙率的超声表征

IF 0.6 4区材料科学

Materials Evaluation Pub Date : 2022-04-01 DOI: 10.32548/2022.me-04266

O. Cook, Nancy Huang, R. Smithson, C. Kube, A. Beese, A. Argüelles

{"title":"Ultrasonic Characterization of Porosity in Components Made by Binder Jet Additive Manufacturing","authors":"O. Cook, Nancy Huang, R. Smithson, C. Kube, A. Beese, A. Argüelles","doi":"10.32548/2022.me-04266","DOIUrl":"https://doi.org/10.32548/2022.me-04266","url":null,"abstract":"Binder jet metallic additive manufacturing (AM) is a popular alternative to powder bed fusion and directed energy deposition because of lower costs, elimination of thermal cycling, and lower energy consumption. However, like other metallic AM processes, binder jetting is prone to defects like porosity, which decreases the adoption of binder-jetted parts. Binder-jetted parts are sometimes infiltrated with a low melting temperature metal to fill pores during sintering; however, the infiltration is impacted by the part geometry and infiltration environment, which can cause infill nonuniformity. Furthermore, using an infiltration metal creates a complicated multiphase microstructure substantially different than common wrought materials and alloys. To bring insight to the binder jet/infiltration process toward part qualification and improved part quality, spatially dependent ultrasonic wave speed and attenuation techniques are being applied to help characterize and map porosity in parts made by binder jet AM. In this paper, measurements are conducted on binder-jetted stainless steel and stainless steel infiltrated with bronze samples. X-ray computed tomography (XCT) is used to provide an assessment of porosity.","PeriodicalId":49876,"journal":{"name":"Materials Evaluation","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46833848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 7