In this study, a failure analysis was carried out on galvanized spring steel. The results showed that the failure is related to two main factors: the relatively poor surface quality and the unsuitable cooling rate of the wires after exiting from the galvanizing bath.
Grain characterisation of a steel wire - Oxford Instruments
Electron backscatter diffraction (EBSD) on a Scanning Electron Microscope (SEM) is the ideal technique for determining grain size, illustrated here with a galvanized steel wire. This steel is used to manufacture bridge cables, and the importance of grain size and microstructure has been recognised as it influences the critical performance of ...
Scanning electron microscopy, energy dispersive X- ray analysis and Raman spectroscopy of lumpy wire (LW) and normal wire (NW) coatings confirm the presence of silicon bearing phases present in the LW coating.
Characterization of Corrosion Film in Galvanized Steel Exposed …
Specimens of commercial galvanized steel wire were exposed to the atmospheric environment for periods up to six months. The corrosion film formed was characterized by Auger Electron Spectroscopy (AES), Scanning Electron Microscopy (SEM), and X-Ray Diffraction (XRD)....
Influence of the Manufacturing Process on Defects in the Galvanized …
In order to explain the origin of these cracks, systematic metallographic investigations were performed by means of optical and scanning electron microscope on both the wires and the rods that have been cold drawn to produce the wire. The chemical composition of the galvanized coatings was evaluated by means of energy dispersive spectroscopy.
Effect of lead alloying on corrosion characteristics of galvanized ...
2020年12月1日 · The deposited corrosion products on higher lead wire was found considerably lower (8.3 gm/M 2) in comparison to the low lead content galvanized wire (14.4 gm/M 2). These results suggest that the higher lead wire experienced slower attack by copper sulfate and fungicides solutions.
Comparison and analysis for a galvanized coating and a single …
2008年1月1日 · The microstructure of a galvanized and a new one step Galfan coating on steel wire, both of which was taken by mass production line, was observed by scanning electron microscope (SEM)....
The Multi-Stage Drawing Process of Zinc-Coated Medium-Carbon …
The test material was 5.5 mm-diameter galvanized steel wire rod (Drumet, Wloclawek, Poland). The examination of the microstructure of the coatings was made with the use of an S-3400 N-type Hitachi scanning microscope equipped (Hitachi, Tokyo, Japan) with an Energy Dispersion Spectroscopy X-ray spectrometer.
Morphology, microstructure and mechanical property of laser …
2024年10月1日 · An orthogonal test of four factors and five levels was experimentally performed on galvanized steel sheets, aiming at optimizing the processing window. The microstructure and element distribution of laser brazed joints were carefully studied using an optical microscope (OM), scanning electron microscope (SEM) and energy spectrum analysis (EDS).
Fatigue & Fracture of Engineering Materials & Structures
2023年6月5日 · In this paper, fretting tests are conducted on bare and galvanized wires. Hourglass samples are then used to evaluate the material properties and plain fatigue performance of the studied wires. Finally, the microstructure of the wires is evaluated, and the influence of defects on the fretting fatigue life of the wires is discussed.
- 某些结果已被删除