Structural and Phase Transformations in Internally Nitrided Corrosion-Resistant Steel during Severe Plastic Deformation and Subsequent Annealings

被引：4

作者：

Rogachev, Stanislav O. ^{[1
]}

Nikulin, Sergey A. ^{[1
]}

Khatkevich, Vladimir M. ^{[1
]}

机构：

[1] Natl Univ Sci & Technol MISIS, Lab Hybrid Nanostruct Mat, Leninsky Pr 4, Moscow 119049, Russia

来源：

STEEL RESEARCH INTERNATIONAL | 2017年 / 88卷 / 11期

关键词：

high-pressure torsion; high-temperature nitirding; nanostructures; severe plastic deformation; steels; HIGH-PRESSURE TORSION; THERMAL-STABILITY; MICROHARDNESS; TRANSITIONS; EVOLUTION; HARDNESS; HPT;

D O I：

10.1002/srin.201700070

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The effect of severe plastic deformation (SPD) by high-pressure torsion (HPT) and subsequent annealings on structural and phase transformations in 0.08C-18Cr-0.5Ti steel, which is preliminarily hardened by high-temperature internal nitriding (the microhardness is 3.2GPa), has been studied. The HPT results in the formation of nanostructure with an average structural-element size of 55nm and the refining and in part dissolution of Cr2N particles. After HPT, the microhardness of steel increases by 2.7 times (to 8.6GPa at the midradius of samples), which is substantially higher than the microhardness of non-nitrided steel after HPT. The hardening of the material remains during heating to a temperature of no less than 450 degrees C at the expense of precipitation of disperse Cr2N particles and despite of coarsening structural elements. HPT of nitrided steel leads to a shift of phase transformations, namely the temperature of chromium nitride precipitation decreases.

引用

页数：7

共 21 条

[1] Strength of ultrafine-grained corrosion-resistant steels after severe plastic deformation
Rybal'chenko, OV
Dobatkin, SV
Kaputkina, LM
Raab, GI
Krasilnikov, NA
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 387 : 244 - 248
[2] Effect of severe plastic deformation by high-pressure torsion at different temperatures and subsequent annealing on structural and phase transformations in Zr-2.5% Nb alloy
Rogachev, S. O.
Sundeev, R., V
Nikulin, S. A.
JOURNAL OF ALLOYS AND COMPOUNDS, 2021, 865
[3] Phase and structural transformations in corrosion-resistant steels upon high-pressure torsion and heating
Dobatkin S.V.
Kanutkina L.M.
Rybal'chenko O.V.
Komlev V.S.
Russian Metallurgy (Metally), 2012, 2012 (09) : 763 - 771
[4] Structural and phase transformations in nanostructured 0.1% C-Mn-V-Ti steel during cold deformation by high pressure torsion and subsequent heating
Astafurova E.G.
Dobatkin S.V.
Naydenkin E.V.
Shagalina S.V.
Zakharova G.G.
Ivanov Yu.F.
Nanotechnologies in Russia, 2009, 4 (1-2): : 109 - 120
[5] Grain refinement and phase transformations in Al and Fe based alloys during severe plastic deformation
Dobatkin, SV
ULTRAFINE GRAINED MATERIALS II, 2002, : 183 - 192
[6] Differences in structural evolution in single- and dual-phase materials during severe plastic deformation
Pippan, R
Vorhauer, A
Wetscher, F
Faleschini, M
Hafok, M
Sabirov, I
NANOMATERIALS BY SEVERE PLASTIC DEFORMATION, 2006, 503-504 : 407 - 412
[7] A NEW APPROACH TO A DESCRIPTION OF STRUCTURAL-PHASE TRANSFORMATIONS UNDER A VERY SEVERE PLASTIC DEFORMATION
Glezer, A. M.
RUSSIAN PHYSICS JOURNAL, 2008, 51 (05) : 480 - 491
[8] A new approach to a description of structural-phase transformations under a very severe plastic deformation
A. M. Glezer
Russian Physics Journal, 2008, 51 : 480 - 491
[9] Evolution of the Structural-Phase State of a Ti–Al– V–Mo Alloy During Severe Plastic Deformation and SubSequent Annealing
G. P. Grabovetskaya
I. V. Ratochka
I. P. Mishin
O. V. Zabudchenko
O. N. Lykova
Russian Physics Journal, 2016, 59 : 109 - 115
[10] Phase and structural transformations in the aluminum amts alloy upon severe plastic deformation using various techniques
Shirinkina, I. G.
Petrova, A. N.
Brodova, I. G.
Pilyugin, V. P.
Antonova, O. A.
PHYSICS OF METALS AND METALLOGRAPHY, 2012, 113 (02) : 170 - 175

← 1 2 3 →