Microstructure/Mechanical Properties Relationship in High-Nitrogen Steel Obtained by Electron Beam Additive Manufacturing and Conventional Casting

被引：0
|
作者：
Reunova, Kseniya A. [1 ]
Astafurova, Elena G. [1 ]
Astafurov, Sergey, V [1 ]
Melnikov, Evgenii, V [1 ]
Panchenko, Marina Yu [1 ]
Moskvina, Valentina A. [1 ]
Maier, Galina G. [1 ]
Rubtsov, Valery E. [1 ]
Nikonov, Sergey Yu [1 ]
Kolubaev, Evgenii A. [1 ]
机构：
[1] Inst Strength Phys & Mat Sci SB RAS, Tomsk 634055, Russia
来源：
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY | 2020年 / 2310卷
关键词：
D O I：
10.1063/5.0034236
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A comparative study of the microstructure and mechanical properties of high-nitrogen steel, which was obtained by two different methods (conventional casting and electron beam additive manufacturing), was carried out. Independently on fabrication method, steel possesses two-phase structure of austenite and delta-ferrite, and the volume fractions and distribution of both phases depend on the fabrication method. Additively manufactured steel specimens have high strength characteristics and good ductility both in as-built state and after following solid-solution treatment. Despite the fact that the specimens produced by different methods possess different microstructure (coarse delta-ferrite and austenite grains in cast and solution-treated specimens and dendritic delta-ferrite/austenite microstructure in as-build specimens) their mechanical properties are very similar.
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页数：5
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