| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1571114 | Materials Characterization | 2014 | 7 Pages |
Abstract
The effect of a Zr addition on the precipitation behavior and mechanical properties in Nb-containing alumina-forming austenitic (AFA) stainless steels was investigated using tensile tests, scanning electron microscopy (SEM), and scanning transmission electron microscopy (STEM) analysis. The TEM observation showed that a Zr addition led to the formation of a (Nb,Zr)(C,N) complex particle, which coarsened the Nb-rich carbonitride. Tensile tests were performed at an elevated temperature (700 °C), and both the tensile and yield strengths decreased with a Zr addition. This unexpected result of a Zr addition was due to the reduction of the precipitation strengthening by particle coarsening.
Keywords
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Joonoh Moon, Min-Ho Jang, Jun-Yun Kang, Tae-Ho Lee,