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TEM investigation of the interaction between dislocation and nitride precipitates in deformed high manganese-chromium austenitic steels |
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| Authors: | Dong-Su Bae Moon-Hi HongKazuya Miyahara |
| Institution: | a Department of Advanced Materials Engineering, Dong-Eui University, Gaya-Dong 24, Busanjin-Ku, Busan 614-714, South Korea b POSCO Technical Research Laboratories, Cheonnam 545-090, South Korea c Department of Materials Science and Engineering, Nagoya University, Nagoya 464-01, Japan |
| Abstract: | The interaction between dislocations and nitride precipitates during high-temperature creep deformation of high manganese austenitic steels has been investigated by transmission electron microscopy. Most of the dislocations activated by applied stress were dissociated into Shockley partials. The fine TiN precipitates are pinning and/or incorporating the bow-type moving dislocations and they turned out to be more effective than the coarser TaN in disturbing the dislocation movement. |
| Keywords: | 61 82 Bg 62 20 Fe 61 72 Ff |
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