Image Processing-Based Analysis of Temperature Dependent Interlayer in Brazed Fe-Cr-Al Alloy (Fecralloy®) with Ni-Based Filler Metal

Author:

Shin Jeong-HeonORCID,Kim Young,Choi Hyun Woo,Choi Jun Seok,Yoon Seok HoORCID

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.

Funder

Korea Evaluation Institute of Industrial Technology

Publisher

MDPI AG

Subject

General Materials Science,Metals and Alloys

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