| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5463794 | Materials Letters | 2017 | 8 Pages |
Abstract
The objective in this study was to elucidate fatigue crack propagation in D6AC steel plasma arc weldments (PAWs) that underwent post-weld (PW) tempering at 300 °C, 450 °C, or 600 °C. PW tempering at 600 °C was shown to enhance the refinement of the microstructure and thereby increase resistance to the growth of fatigue cracks. Surfaces with fatigue fracturing presented quasi-cleavage planes and intergranular fracture modes. The zigzag nature of the crack path (i.e., crack deflection) may contribute to the retardation of fatigue crack propagation.
Related Topics
Physical Sciences and Engineering
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Nanotechnology
Authors
Chun-Ming Lin, Chi-Zhi Huang, Cherng-Yuh Su, Cheng-Shun Chen,