Cryogenic impact toughness of a work hardened austenitic stainless steel

被引：6

作者：

Odnobokova, M. V. ^{[1
]}

Belyakov, A. ^{[2
]}

Enikeev, N. A. ^{[1
]}

Kaibyshev, R. O. ^{[3
]}

Valiev, R. Z. ^{[1
]}

机构：

[1] Ufa State Aviat Tech Univ, Inst Phys Adv Mat, Ufa 450008, Russia

[2] Belgorod State Univ, Belgorod 308015, Russia

[3] Russian State Agrarian Univ, Moscow Timiryazev Agr Acad, Moscow 127550, Russia

来源：

MATERIALIA | 2022年 / 23卷

关键词：

Rolling; Stainless steels; Martensitic phase transformation; Impact behavior; Ductile fracture; FRACTURE;

D O I：

10.1016/j.mtla.2022.101460

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Warm rolling at 473 K with total reductions up to 65% significantly strengthened a 304 L austenitic stainless steel. The tensile strength at room temperature increased from 600 MPa to 1040 MPa. Outstanding mechanical properties of the warm rolled steel were observed at 77 K, when the ultimate tensile strength of 1830 MPa and a fracture elongation of 39% were achieved. Moreover, the warm rolled steel exhibited high impact toughness, especially, at cryogenic temperature that was attributed to the crack branching crosswise to the principal crack direction.

引用

页数：5

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