Details
| Original language | English |
|---|---|
| Pages (from-to) | 1619-1626 |
| Number of pages | 8 |
| Journal | Steel research international |
| Volume | 87 |
| Issue number | 12 |
| Publication status | Published - 6 Apr 2016 |
Abstract
In the present study, the improvement of the bond strength of galvanized steel sheets in the cold roll bonding process is investigated. Zn–Fe intermetallic compounds are employed as an intermediate layer. The galvanized low-carbon steel is cold roll bonded. Prior to the roll bonding, the sheets are heat treated in the temperature range from 450 to 550 °C. The influence of the heat treatment on the bond strength is investigated. It is found that the use of the pre-rolling annealing increases the bond strength. The highest average value is observed after a treatment at temperatures in the range from 450 to 500 °C. Higher temperatures, however, reduce the bond strength. The bond is analyzed by optical and scanning electron microscopy (SEM) and evaluated in a tensile shear test. The interaction between iron and zinc is considered to be responsible for the improved bond strength. The presence of intermetallic compounds in the interface zone forms a brittle layer, which is required to create juvenile surfaces due to local fracturing during the roll bonding.
Keywords
- cold bonding, galvanizing, heat-treatment, intermetallic compound, rolling
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
- Chemistry(all)
- Physical and Theoretical Chemistry
- Materials Science(all)
- Metals and Alloys
- Materials Science(all)
- Materials Chemistry
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In: Steel research international, Vol. 87, No. 12, 06.04.2016, p. 1619-1626.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Effect of Pre-Rolling Heat Treatments on the Bond Strength of Cladded Galvanized Steels in a Cold Roll Bonding Process
AU - Hordych, Illia
AU - Rodman, Dmytro
AU - Nürnberger, Florian
AU - Hoppe, Christian
AU - Schmidt, Hans Christian
AU - Grundmeier, Guido
AU - Homberg, Werner
AU - Maier, Hans Jürgen
PY - 2016/4/6
Y1 - 2016/4/6
N2 - In the present study, the improvement of the bond strength of galvanized steel sheets in the cold roll bonding process is investigated. Zn–Fe intermetallic compounds are employed as an intermediate layer. The galvanized low-carbon steel is cold roll bonded. Prior to the roll bonding, the sheets are heat treated in the temperature range from 450 to 550 °C. The influence of the heat treatment on the bond strength is investigated. It is found that the use of the pre-rolling annealing increases the bond strength. The highest average value is observed after a treatment at temperatures in the range from 450 to 500 °C. Higher temperatures, however, reduce the bond strength. The bond is analyzed by optical and scanning electron microscopy (SEM) and evaluated in a tensile shear test. The interaction between iron and zinc is considered to be responsible for the improved bond strength. The presence of intermetallic compounds in the interface zone forms a brittle layer, which is required to create juvenile surfaces due to local fracturing during the roll bonding.
AB - In the present study, the improvement of the bond strength of galvanized steel sheets in the cold roll bonding process is investigated. Zn–Fe intermetallic compounds are employed as an intermediate layer. The galvanized low-carbon steel is cold roll bonded. Prior to the roll bonding, the sheets are heat treated in the temperature range from 450 to 550 °C. The influence of the heat treatment on the bond strength is investigated. It is found that the use of the pre-rolling annealing increases the bond strength. The highest average value is observed after a treatment at temperatures in the range from 450 to 500 °C. Higher temperatures, however, reduce the bond strength. The bond is analyzed by optical and scanning electron microscopy (SEM) and evaluated in a tensile shear test. The interaction between iron and zinc is considered to be responsible for the improved bond strength. The presence of intermetallic compounds in the interface zone forms a brittle layer, which is required to create juvenile surfaces due to local fracturing during the roll bonding.
KW - cold bonding
KW - galvanizing
KW - heat-treatment
KW - intermetallic compound
KW - rolling
UR - http://www.scopus.com/inward/record.url?scp=84963570147&partnerID=8YFLogxK
U2 - 10.1002/srin.201600021
DO - 10.1002/srin.201600021
M3 - Article
AN - SCOPUS:84963570147
VL - 87
SP - 1619
EP - 1626
JO - Steel research international
JF - Steel research international
SN - 1611-3683
IS - 12
ER -