Abstract
This paper presents the result of the brazed Iron-chromium-aluminum alloy (Fecralloy) with nickel filler metal (MBF20). The heat plates with the machined 2 mm diameter channels were brazed using 60 μm thick MBF20. In the experiment, the brazing bonding was performed at three different temperatures, and the SEM-EDS images of the cross sections were acquired to analyze. By performing image processing, the change of the filler metal thickness was estimated, and the thickness increased from 53.8 μm, 64.1 μm, and 115.8 μm at 900 °C, 950 °C and 1000 °C, respectively. In addition, the image-processed distributions of CrxBy and NixAly phases with the change of bonding temperatures were quantified. The image processing methods in this work are proposed to be used for quantitative analysis.
Highlights
Microreactors contribute to intensifying the chemical process with their advanced heat and mass transfer properties [1]
Microreactors have attracted attention as reactors with various reactions related to hydrogen production or synthesis gas production, e.g., steam reforming [2,3,4,5], oxidative steam reforming [3,6,7], partial oxidation [7,8,9], and water gas shift [10]
With and thoseeach images, it is not in possible to measure the exact. With those images, it is not possible to measure the exact change of the thickness of the filler superimposed as thickness in Figure of withand those it to is not possible to measure the exact change of the filler metal it isimages, difficult analyze the bonding quality, the results metal and it isthickness difficult to analyze the bonding quality, the results obtained by apply the developed change of the of the filler metal and it is difficult to analyze the bonding quality, the results obtained by apply the developed image processing method is presented in the paragraph
Summary
Microreactors contribute to intensifying the chemical process with their advanced heat and mass transfer properties [1]. Applying to brazing bondingbyisvarying one of adjustable bonding method to rates make ofFecralloy temperature rise, which are important factors determining bonding quality. X-ray diffraction (XRD), scanning electron microscopy with energy dispersive spectroscopy the research to quantify the micro-analyzer penetration depth of materials in the bonding process by analyzing the (SEM-EDS), electron probe (EPMA), or transmission electron microscopy (TEM) were change of the border images line of filler metal the distribution of newly of formed phase distribution has used. In the In images, the changethe of SEM-EDS filler metalmaterial thickness, and Cron xBy, and NixAly phase distribution this paper, we performed analysis the cross section by performing according to bonding temperatures were analyzed and quantified through processing. This work would be used to analyze the bonding quality of Fecralloy brazing bonding with following future studies
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