Microstructural transformations in stress relieved type 316 stainless steel weld metal |
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| Affiliation: | 1. National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 100083, China;2. Institute of Nuclear Fuel and Materials, State Power Investment Corporation Research Institute, Beijing 102209, China |
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| Abstract: | The heat treatment of Type 316L weld metal containing small amounts of ferrite results in the transformation of the ferrite to χ or σ phases after aging for only 3 hr at 850°C. The χ-phase transformation is associated with a transitional M23C6 carbide, whereas the σ-phase transforms directly from the ferrite. |
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