Thermal and Structural Characterization of Copper–Steel Bonding Interfaces Produced by Impact Welding

Rojas-Rodriguez, I.; Jaramillo-Vigueras, D.; Velázquez-Hernández, R.; Real, Alicia Del; Serroukh, Ibrahim; Baños, L.; García, José Antonio Tornero; Rodríguez‐García, Mario E.

doi:10.1080/10426910802384672

Cited by 15 publications

(7 citation statements)

References 10 publications

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“…The detector signal was amplified by a low-noise preamplifier, and then, it was sent to a lock-in amplifier SRS-850 which was interfaced with a PC. XYZ microstages were used to obtain PTR amplitude and phase images [23,24].…”

Section: Heat Capacitymentioning

confidence: 99%

Analysis of the Absorption Phenomenon through the Use of Finite Element Method

Robles-Agudo¹,

Tejeda²,

Muñoz³

et al. 2020

Modern Spectroscopic Techniques and Applications

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In this text, a numerical model using the finite element method (FEM) is developed to describe absorption phenomena using the Beer-Lambert law. Numerical results are compared against experimental measurements made on alpha brass, characterized by photothermal radiometry (PTR). Results from the numerical analysis are in good agreement with the measurements obtained from the radiometry tests. In this technique the material is subjected to a laser heating, producing a thermal wave that is captured with a detector by means of the amplitude and phase parameters. The analysis of the data obtained from six samples provides information about their thermal properties, such as conductivity and diffusivity, which can be correlated with structural changes in a material. Results from this research lead to the characterization of mechanical properties of metallic materials.

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Section: Heat Capacitymentioning

confidence: 99%

Analysis of the Absorption Phenomenon through the Use of Finite Element Method

Robles-Agudo¹,

Tejeda²,

Muñoz³

et al. 2020

Modern Spectroscopic Techniques and Applications

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show abstract

“…The detector signal was amplified by a low-noise preamplifier, and then, it was sent to a lock-in amplifier SRS-850 which was interfaced with a PC. A XYZ microstages was used to obtain PTR amplitude and phase images [14].…”

Section: Ptrmentioning

confidence: 99%

The Influence of the Precipitation Heat Treatment Temperature on the Metallurgical, Microstructure, Thermal Properties, and Microhardness of an Alpha Brass

Rojas-Rodriguez¹,

Lara-Guevara²,

Salazar-Sicacha³

et al. 2018

MSA

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Metals obtain optimum conditions of metallurgical and physical properties through a heat treatment. Brass is one of the copper alloys which has many applications in everyday life and in the industry. Brass is one of the copper alloys which has many applications in everyday life and the industry. In this work, the influence of the precipitation heat treatment temperature on the metallurgical microstructure, structure, thermal properties, and microhardness of an alpha brass is analyzed. Samples were heat treated by precipitation for 2 h at 300˚C, 400˚C, 500˚C, 600˚C, and 700˚C. The best mechanical properties were found at 500˚C of precipitation heat treatment temperature. Specimens were characterized by scanning electron microscopy, X-ray diffraction, Vickers microhardness, photothermal radiometry, and photoacoustic to study the thermal diffusivity and conductivity, as well as the heat capacity. The inverse of the full width at the half maximum analysis showed that the crystallinity decreased as the precipitation heat treatment temperature increased. Metallurgical microstructure and microhardness were correlated to the precipitation heat treatment temperatures to determine the effect on the metallurgical and mechanical properties, as well as the effect on the thermal properties of alpha brass. How to cite this paper: Rojas-Rodríguez, I., Lara-Guevara, A., Salazar-Sicacha, M., Mosquera-Mosquera, J.C., Robles-Agudo, M., Ramirez-Gutierrez, C. and Rodríguez-García, M. (2018) The Influence of the Precipitation Heat Treatment Temperature on the Metallurgical, Microstructure, Thermal Properties, and Microhardness of an Alpha Brass. Materials Sciences and Applications,9,[440][441][442][443][444][445][446][447][448][449][450][451][452][453][454]

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“…Figure 1 and Figure 2 are just an example, and are similar to the result observed in previous publications by Velazquez-Hernandez et al ., Rojas-Rodríguez et al , and Rodríguez et al . [1,2,3] at different materials.…”

Section: Hardware Requirement In Low-frequency Photoacoustic Applimentioning

confidence: 99%

“…For example, in Photothermal and Photoacoustic Spectroscopy, it is common to make low-frequency and time scans from 10 Hz–10 kHz. However, in Photothermal Radiometry (PTR) and Photocarrier Radiometry (PCR), the common frequencies scans are from 10 kHz to 100 kHz, to study thermal and electronic properties, as well as some predetermined frequency values to obtain Photothermal and Photocarrier images at determined frequency [1,2,3]. …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dual-Phase Lock-In Amplifier Based on FPGA for Low-Frequencies Experiments

Macías-Bobadilla

Rodríguez‐Reséndiz

Mota-Valtierra

et al. 2016

Sensors

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Photothermal techniques allow the detection of characteristics of material without invading it. Researchers have developed hardware for some specific Phase and Amplitude detection (Lock-In Function) applications, eliminating space and unnecessary electronic functions, among others. This work shows the development of a Digital Lock-In Amplifier based on a Field Programmable Gate Array (FPGA) for low-frequency applications. This system allows selecting and generating the appropriated frequency depending on the kind of experiment or material studied. The results show good frequency stability in the order of 1.0 × 10−9 Hz, which is considered good linearity and repeatability response for the most common Laboratory Amplitude and Phase Shift detection devices, with a low error and standard deviation.

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Thermal and Structural Characterization of Copper–Steel Bonding Interfaces Produced by Impact Welding

Cited by 15 publications

References 10 publications

Analysis of the Absorption Phenomenon through the Use of Finite Element Method

Analysis of the Absorption Phenomenon through the Use of Finite Element Method

The Influence of the Precipitation Heat Treatment Temperature on the Metallurgical, Microstructure, Thermal Properties, and Microhardness of an Alpha Brass

Dual-Phase Lock-In Amplifier Based on FPGA for Low-Frequencies Experiments

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