| Title |
The Effect of Mechanical Properties on the Erosion Behavior of Ductile Materials (2) ( The Characterization of the Erosion Behavior using the Localized Deformation Model ) |
| Authors |
김용석(Yong Suk Kim); 송진화(Jin Hwa Song); 장영원(Young Won Chang) |
| Abstract |
Erosion tests were performed on mild steel, 304, 310, 410 stainless steel and Inconel 600 superalloy in the air at room temperature using round Al₂O₃ pariticles. Erosion rates were calculated and eroded surfaces were examined using SEM. SEM observations indicated that platelet formation was a major erosion mechanism and size of the platelet was inversely proportional to the erosion rate. The erosion characteristics was investigated using the localized deformation model. It was found that the localized deformation model characterizes the erosion test results and strain hardening coefficient is the most influential parameter to the model Strain hardening coefficient at the early stage of plastic deformation during simple tensile tests of the alloys could qualitatively explain the difference of erosion rates among the tested materials. |