Recrystallization and grain growth in nano-structured austenitic stainless steel under electric current heating

被引：11

作者：

Krawczynska, Agnieszka T. ^{[1
]}

Lewandowska, Malgorzata ^{[1
]}

Kuziak, Roman ^{[2
]}

Kurzydlowski, Krzysztof J. ^{[1
]}

机构：

[1] Warsaw Univ Technol, Fac Mat Sci & Engn, Woloska 141, PL-02597 Warsaw, Poland

[2] Inst Ferrous Met, PL-44100 Gliwice, Poland

来源：

PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 7 NO 5 | 2010年 / 7卷 / 05期

关键词：

steel; extrusion; nanocrystallites; twins; mechanical properties; annealing; NANOSTRUCTURE FORMATION; ALLOY; FIELD;

D O I：

10.1002/pssc.200983377

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Samples of 316LVM austenitic stainless steel were hydrostatically extruded (HE), in a multi-step process with the total true strain of 1.84 to produce a microstructure consisting of nanotwins separated by shear bands. The twins average width is 19 nm and length 168 nm. Earlier results proved that a post-deformation annealing at 700 degrees C for 1 hour results in the formation of a recrystallized structure with nanograins of 93 nm in diameter. In the present study samples were heated to 700 degrees C by an alternating current, AC, using Gleeble 3800 thermo-mechanical simulator. Changes in the nanostructure were investigated using transmission and scanning electron microscopes. Microhardness was also measured under the load of 200g. The results are discussed in terms of the possibility to use AC heating for post deformation treatment of nano-sized metals obtained by methods of severe plastic deformation, SPD. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：1380 / 1383

页数：4

共 9 条

[1] Effects of electric current on solid state phase transformations in metals [J].

Conrad, H .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 287 (02) :227-237

[2] Effects of external electric field on recrystallization texture and microstructure of 08Al killed steel sheet [J].

Hu, ZC ;

He, CS ;

Zhao, X ;

Zuo, L .

JOURNAL OF MATERIALS SCIENCE, 2004, 39 (13) :4231-4234

[3] Nanostructure formation in austenitic stainless steel [J].

Krawczynska, A. T. ;

Lewandowska, M. ;

Kurzydlowski, K. J. .

PERSPECTIVES OF NANOSCIENCE AND NANOTECHNOLOGY: ACTA MATERIALIA GOLD MEDAL WORKSHOP, 2008, 140 :173-+

[4] Recrystallization in nanostructured austenitic stainless steel [J].

Krawczynska, A. T. ;

Lewandowska, M. ;

Kurzydlowski, K. J. .

NANOMATERIALS BY SEVERE PLASTIC DEFORMATION IV, PTS 1 AND 2, 2008, 584-586 :966-970

[5] Thermal stability of hydrostatically extruded EUROFER 97 steel [J].

Krawczynska, Agnieszka T. ;

Lewandowska, Malgorzata ;

Kurzydlowski, Krzysztof J. .

FUSION ENGINEERING AND DESIGN, 2009, 84 (7-11) :1116-1118

[6] Hydrostatic extrusion and nanostructure formation in an aluminium alloy [J].

Lewandowska, M ;

Garbacz, H ;

Pachla, W ;

Mazur, A ;

Kurzydlowski, KJ .

BULK AND GRADED NANOMETALS, 2005, 101-102 :65-68

[7] The effect of electric field on the recrystallization of 2091 Al-Li alloy [J].

Liu, W ;

Cui, JZ .

JOURNAL OF MATERIALS SCIENCE LETTERS, 1997, 16 (16) :1400-1401

[8] Influence of dc electric current on the hardness of thermally aged Cu-Cr-Zr alloy [J].

Wang, Zhiqiang ;

Zhong, Yunbo ;

Cao, Guanghui ;

Wang, Chao ;

Wang, Jiang ;

Ren, Weili ;

Lei, Zuosheng ;

Ren, Zhongming .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 479 (1-2) :303-306

[9] EFFECT OF ELECTRIC-CURRENT ON THE RECRYSTALLIZATION BEHAVIOR OF COLD-WORKED ALPHA-TI [J].

XU, ZS ;

LAI, ZH ;

CHEN, YX .

SCRIPTA METALLURGICA, 1988, 22 (02) :187-190

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