Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7972315 | Materials Science and Engineering: A | 2018 | 24 Pages |
Abstract
Here the tensile behavior of a 9Cr-1.7W-0.1C reduced activated ferritic-martensitic steel over the temperature region from room temperature (RT) to 600â¯Â°C was studied. The variation of the dislocation distribution under the interplay mechanism of dislocations with solute atoms and lath boundaries was found to be the main reason for the decreasing of plasticity in the intermediate temperature zone. Temperature and strain rate were confirmed to affect the interaction intensity of this dynamic strain aging (DSA) phenomenon on the tensile deformation behavior through changing the extent of dislocation pile-up on the lath boundaries. The variation of average rate of crack propagation in the fibrous region was determined to be related to the DSA effect on the dislocation mobility.
Related Topics
Physical Sciences and Engineering
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Authors
Chunliang Mao, Chenxi Liu, Liming Yu, Huijun Li, Yongchang Liu,