Neutron diffraction in situ monitoring of the dislocation density during martensitic transformation in a stainless steel

被引：97

作者：

Christien, F. ^{[1
]}

Telling, M. T. F. ^{[2
,3
]}

Knight, K. S. ^{[2
,4
]}

机构：

[1] Univ Nantes, CNRS, Inst Mat Jean Rouxel IMN, F-44306 Nantes 3, France

[2] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England

[3] Univ Oxford, Dept Mat, Oxford OX1 3PH, England

[4] Nat Hist Museum, Dept Earth Sci, London SW7 5BD, England

来源：

SCRIPTA MATERIALIA | 2013年 / 68卷 / 07期

关键词：

Dislocation; Neutron diffraction; Line broadening; Stored energy; Recovery; X-RAY-DIFFRACTION; STRAIN ANISOTROPY; EVOLUTION; CONTRAST; ENERGY;

D O I：

10.1016/j.scriptamat.2012.11.031

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In situ monitoring of the dislocation density during martensitic transformation, and annealing, of the martensitic stainless steel 17-4PH was undertaken using neutron diffraction. The dislocation density in martensite is seen to increase linearly from similar to 2 x 10(15) to similar to 4 x 10(15) m(-2) during the transformation. In addition, the dislocation density in the parent phase (austenite) slowly increases from similar to 0 to 10(15) m(-2). Annealing of the newly formed martensite in the temperature range 500-700 degrees C leads to almost complete elimination of dislocations. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：506 / 509

页数：4

共 19 条

[1]

Bacon, 1975, MONOGRAPHS PHYS CHEM

[2] Phosphorus grain boundary segregation in steel 17-4PH [J].

Christien, F ;

Le Gall, R ;

Saindrenan, G .

SCRIPTA MATERIALIA, 2003, 48 (01) :11-16

[3] Neutron-diffraction line broadening in a tempered martensitic steel for fusion reactors [J].

Coppola, R ;

Lukas, P ;

Mikula, P ;

Vrana, M .

PHYSICA B, 1997, 241 :1261-1263

[4]

Dieter George Ellwood, 1976, Mechanical metallurgy, V3

[5] Energy of lattice distortion in cold worked permalloy [J].

Haworth, FE .

PHYSICAL REVIEW, 1937, 52 (06) :0613-0620

[6]

Humphreys FJ, 2017, Recrystallization and Related Annealing Phenomena, Vthird

[7]

Kisi E.H., 2008, Applications of Neutron Powder Diffraction

[8]

Larson A. C., 2004, 86748 LAUR LOS AL NA

[9] Austenite content and dislocation density in electron-beam welds of a stainless maraging steel [J].

Macek, K ;

Lukas, P ;

Janovec, J ;

Mikula, P ;

Strunz, P ;

Vrana, M ;

Zaffagnini, M .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1996, 208 (01) :131-138

[10] Microstructural evolution in a 17-4 PH stainless steel after aging at 400°C [J].

Murayama, M ;

Katayama, Y ;

Hono, K .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1999, 30 (02) :345-353

← 1 2 →