Evaluation of Microstructural and Mechanical Behavior of AHSS CP780 Steel Welded by GMAW-Pulsed and GMAW-Pulsed-Brazing Processes

Alan Romero-Orozco; Jaime Taha-Tijerina; Rene De Luna-Alanis; Victor Lopez-Morelos; Maria Ramirez-Lopez; Melchor Salazar; Francisco Curiel-Lopez

doi:https://doi.org/10.3390/met12030530

Evaluation of Microstructural and Mechanical Behavior of AHSS CP780 Steel Welded by GMAW-Pulsed and GMAW-Pulsed-Brazing Processes

Alan Romero-Orozco, Jaime Taha-Tijerina, Rene De Luna-Alanis, Victor Lopez-Morelos, Maria Ramirez-Lopez, Melchor Salazar, Francisco Curiel-Lopez

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Joints of complex phase 780 (CP-780) advanced high strength steel (AHSS) were carried out by using an ER-CuAl-A2 filler metal for the gas metal arc welding pulsed brazing (GMAW-Pbrazing) process and the ER-80S-D2 for the GMAW-P process employing two levels of heat input. The phases in the weld bead and HAZ were analyzed, and the evaporation of zinc by means of scanning electron microscopy (SEM) was also monitored. The mechanical properties of the welded joints were evaluated by tension, microhardness and vertical impact tests. It was found that there was greater surface Zn evaporation in the joints welded with the GMAW-P process as compared to the GMAW-P-brazing process. The best results in tensile strength were observed in the joints welded with GMAW-P-brazing process, which increased by ~68% with respect to those of the GMAW-P. This behavior can be attributed to the formation of an intermetallic complex compound Cu-Al-Fe in the fusion line.

Original language	English
Article number	530
Pages (from-to)	530-1
Number of pages	530
Journal	Metals
Volume	12
Issue number	3
DOIs	https://doi.org/10.3390/met12030530
Publication status	Published - 21 Mar 2022
Externally published	Yes

Bibliographical note

Funding Information:
Funding: This study was supported by Coordinación de la Investigación Científica of Universidad Michoacana de San Nicolas de Hidalgo, Approved project announcement 2022.

Funding Information:
This study was supported by Coordinaci?n de la Investigaci?n Cient?fica of Universidad Michoacana de San Nicolas de Hidalgo, Approved project announcement 2022.

Publisher Copyright:
© 2022, MDPI. All rights reserved.

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https://doi.org/10.3390/met12030530

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title = "Evaluation of Microstructural and Mechanical Behavior of AHSS CP780 Steel Welded by GMAW-Pulsed and GMAW-Pulsed-Brazing Processes",

abstract = "Joints of complex phase 780 (CP-780) advanced high strength steel (AHSS) were carried out by using an ER-CuAl-A2 filler metal for the gas metal arc welding pulsed brazing (GMAW-Pbrazing) process and the ER-80S-D2 for the GMAW-P process employing two levels of heat input. The phases in the weld bead and HAZ were analyzed, and the evaporation of zinc by means of scanning electron microscopy (SEM) was also monitored. The mechanical properties of the welded joints were evaluated by tension, microhardness and vertical impact tests. It was found that there was greater surface Zn evaporation in the joints welded with the GMAW-P process as compared to the GMAW-P-brazing process. The best results in tensile strength were observed in the joints welded with GMAW-P-brazing process, which increased by ~68% with respect to those of the GMAW-P. This behavior can be attributed to the formation of an intermetallic complex compound Cu-Al-Fe in the fusion line.",

author = "Alan Romero-Orozco and Jaime Taha-Tijerina and {De Luna-Alanis}, Rene and Victor Lopez-Morelos and Maria Ramirez-Lopez and Melchor Salazar and Francisco Curiel-Lopez",

note = "Funding Information: Funding: This study was supported by Coordinaci{\'o}n de la Investigaci{\'o}n Cient{\'i}fica of Universidad Michoacana de San Nicolas de Hidalgo, Approved project announcement 2022. Funding Information: This study was supported by Coordinaci?n de la Investigaci?n Cient?fica of Universidad Michoacana de San Nicolas de Hidalgo, Approved project announcement 2022. Publisher Copyright: {\textcopyright} 2022, MDPI. All rights reserved.",

year = "2022",

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doi = "https://doi.org/10.3390/met12030530",

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AU - Romero-Orozco, Alan

AU - Taha-Tijerina, Jaime

AU - De Luna-Alanis, Rene

AU - Lopez-Morelos, Victor

AU - Ramirez-Lopez, Maria

AU - Salazar, Melchor

AU - Curiel-Lopez, Francisco

N1 - Funding Information: Funding: This study was supported by Coordinación de la Investigación Científica of Universidad Michoacana de San Nicolas de Hidalgo, Approved project announcement 2022. Funding Information: This study was supported by Coordinaci?n de la Investigaci?n Cient?fica of Universidad Michoacana de San Nicolas de Hidalgo, Approved project announcement 2022. Publisher Copyright: © 2022, MDPI. All rights reserved.

PY - 2022/3/21

Y1 - 2022/3/21

N2 - Joints of complex phase 780 (CP-780) advanced high strength steel (AHSS) were carried out by using an ER-CuAl-A2 filler metal for the gas metal arc welding pulsed brazing (GMAW-Pbrazing) process and the ER-80S-D2 for the GMAW-P process employing two levels of heat input. The phases in the weld bead and HAZ were analyzed, and the evaporation of zinc by means of scanning electron microscopy (SEM) was also monitored. The mechanical properties of the welded joints were evaluated by tension, microhardness and vertical impact tests. It was found that there was greater surface Zn evaporation in the joints welded with the GMAW-P process as compared to the GMAW-P-brazing process. The best results in tensile strength were observed in the joints welded with GMAW-P-brazing process, which increased by ~68% with respect to those of the GMAW-P. This behavior can be attributed to the formation of an intermetallic complex compound Cu-Al-Fe in the fusion line.

AB - Joints of complex phase 780 (CP-780) advanced high strength steel (AHSS) were carried out by using an ER-CuAl-A2 filler metal for the gas metal arc welding pulsed brazing (GMAW-Pbrazing) process and the ER-80S-D2 for the GMAW-P process employing two levels of heat input. The phases in the weld bead and HAZ were analyzed, and the evaporation of zinc by means of scanning electron microscopy (SEM) was also monitored. The mechanical properties of the welded joints were evaluated by tension, microhardness and vertical impact tests. It was found that there was greater surface Zn evaporation in the joints welded with the GMAW-P process as compared to the GMAW-P-brazing process. The best results in tensile strength were observed in the joints welded with GMAW-P-brazing process, which increased by ~68% with respect to those of the GMAW-P. This behavior can be attributed to the formation of an intermetallic complex compound Cu-Al-Fe in the fusion line.

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Evaluation of Microstructural and Mechanical Behavior of AHSS CP780 Steel Welded by GMAW-Pulsed and GMAW-Pulsed-Brazing Processes

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