Characterization of industrially produced galvannealed coating using cross-sectional specimen in TEM

Journal Article · Sat Aug 15 04:00:00 EDT 2009 · Materials Characterization

DOI:https://doi.org/10.1016/J.MATCHAR.2009.02.006· OSTI ID:22066115

Chakraborty, A ^[1]; Saha, R ^[1]

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1. Research and Development Division, TATA STEEL, Jamshedpur, Jharkhand, PIN-831007 (India)

Galvannealed coated sheet steels are extensively used in the automotive industry due to their inherent advantages, as compared to other zinc based coating, such as excellent spot weldability, good corrosion resistance and better paintability. Despite the above advantages, galvannealed coating suffers from poor formability due to the presence of hard and brittle Fe-Zn intermetallic phases. The formability of the coating depends on the amount and orientation of different Fe-Zn intermetallic phases. The present study deals with the characterization of an industrially produced galvannealed coating using cross-sectional specimen in a Transmission Electron Microscope. From the selected area diffraction patterns obtained in Transmission Electron Microscope, the orientations of the delta phase were calculated.

• OSTI ID: 22066115
• Journal Information: Materials Characterization, Journal Name: Materials Characterization Journal Issue: 8 Vol. 60; ISSN 1044-5803; ISSN MACHEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CORROSION RESISTANCE
CRYSTALS
DIFFRACTION
ORIENTATION
SHEETS
STEELS
TRANSMISSION ELECTRON MICROSCOPY
WELDABILITY
ZINC