Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 754, Issue -, Pages 457-460Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2019.03.105
Keywords
316L stainless steel; Impact energy; Heterostructure; Nano-twin bundle; Lamellar recrystallized grain
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Funding
- National Key R&D Program of China [2017YFA0204403]
- National Natural Science Foundation of China [51741106]
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [KYCX180414]
- Jiangsu Key Laboratory of Advanced Micro & Nano Materials and Technology
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Heterostructured 316L stainless steel with lamellar coarse grains and recrystallized grains both sandwiched by the mixture of ultrafine/nano-grains and nano-twin bundles exhibits good impact behavior. This is mainly ascribed to nano-twin bundles, lamellar recrystallized grains and strain-induced martensitic transformation that suppress crack propagation and consume much higher fracture energy.
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