Strengthening of Stable Cr-Ni Austenitic Stainless Steel under Thermomechanical Treatments

被引：0
|
作者：
Akkuzin, S. A. [1 ]
Litovchenko, I. Yu. [1 ,2 ]
Tyumentsev, A. N. [1 ,2 ]
机构：
[1] Natl Res Tomsk State Univ, Tomsk 634050, Russia
[2] RAS, Inst Strength Phys & Mat Sci SB, Tomsk 634055, Russia
来源：
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2017 (AMHS'17) | 2017年 / 1909卷
关键词：
MICROSTRUCTURE; EVOLUTION;
D O I：
10.1063/1.5013682
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The features of microstructure and mechanical properties of stable austenitic steel after thermomechanical treatment consisted of low-temperature deformation, deformation in the temperature range T = 273-873 K, and subsequent annealing were investigated. It is shown that under such treatment direct (gamma -> alpha')- and reverse (alpha'->gamma)-martensitic transformations occur in the steel. As a result of the thermomechanical treatment submicrocrystalline structural states with high density of micro- and nanotwins and localized deformation bands are formed. The strength of the steel in these structural states is several times higher than that in the initial state.
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页数：4
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