Impact property of high-strength 316L stainless steel with heterostructures

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 mar...

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Veröffentlicht in:	Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2019-04, Vol.754, p.457-460
Hauptverfasser:	Li, Jiansheng, Mao, Qingzhong, Nie, Jinfeng, Huang, Zhaowen, Wang, Shuaizhuo, Li, Yusheng
Format:	Artikel
Sprache:	eng
Schlagworte:	316L stainless steel Austenitic stainless steels Bundles Crack propagation Fracture toughness Heterostructure Heterostructures Impact energy Lamellar recrystallized grain Martensitic stainless steels Martensitic transformations Nano-twin bundle Recrystallization Stainless steel Ultrafines
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Beschreibung
Zusammenfassung:	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.
ISSN:	0921-5093 1873-4936
DOI:	10.1016/j.msea.2019.03.105