Effect of Nitriding Potential KN on the Formation and Growth of a "White Layer" on Iron Aluminide Alloy

被引：12

作者：

Ngoc Minh Le ^{[1
,2
]}

Schimpf, Christian ^{[3
]}

Biermann, Horst ^{[1
]}

Dalke, Anke ^{[1
]}

机构：

[1] Tech Univ Bergakad Freiberg, Inst Mat Engn, Gustav Zeuner Str 5, D-09599 Freiberg, Germany

[2] Hanoi Univ Sci & Technol, Sch Mat Sci & Engn, Dai Co Viet St 1, Hanoi 10000, Vietnam

[3] Tech Univ Bergakad Freiberg, Inst Mat Sci, Gustav Zeuner Str 5, D-09599 Freiberg, Germany

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2021年 / 52卷 / 01期

关键词：

The authors thank Prof. A. Leineweber (TU Bergakademie Freiberg; Institute of Materials Science) for the reviews of the thermodynamic section; Mr. Stefan Kante (TU Bergakademie Freiberg; Institute of Materials Science) for EBSD analysis and Mr. E. Siegismund (TU Bergakademie Freiberg; Institute of Materials Engineering) for nitriding experiments;

D O I：

10.1007/s11663-020-02029-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper investigates the effect of nitriding potential under well-defined gas nitriding conditions on the formation and growth of a compound layer called "white layer" on a FeAl40 (with the composition of 40 at. pct Al) iron aluminide alloy. The nitriding potential was systematically varied in the range of 0.1 to 1.75 bar(-1/2) at 590 degrees C for 5 hour nitriding time with an ammonia-hydrogen-nitrogen atmosphere. Characterization of the microstructure and phases formed within the white layer was performed using optical and scanning electron microscopy, X-ray diffraction (XRD), electron backscatter diffraction (EBSD), and glow discharge optical emission spectroscopy (GDOES). Experimental results indicated that the nitriding potential strongly influences morphology and crystal structure of the white layer. The nitride compound layer consists of the phases gamma '-Fe4N, epsilon-Fe2-3N, and AlN. A mechanism is proposed for the formation and growth of the white layer, depending on the effect of the nitriding potential.

引用

页码：414 / 424

页数：11

共 50 条

[1] Effect of Nitriding Potential KN on the Formation and Growth of a “White Layer” on Iron Aluminide Alloy
Ngoc Minh Le
Christian Schimpf
Horst Biermann
Anke Dalke
Metallurgical and Materials Transactions B, 2021, 52 : 414 - 424
[2] Effect of the nitriding potential on the layer growth kinetics of nitrided pure iron
Keddam, M.
Diffusion in Solids and Liquids: MASS DIFFUSION, 2006, 258-260 : 172 - 175
[3] GRAIN-GROWTH KINETICS OF AN IRON ALUMINIDE ALLOY
FASCHING, AA
EDWARDS, GR
DAVID, SA
SCRIPTA METALLURGICA ET MATERIALIA, 1994, 30 (08): : 1003 - 1008
[4] AL DEPOSITION ON FE - FORMATION OF AN IRON ALUMINIDE SURFACE ALLOY
SCHULZE, RK
TAYLOR, TN
PAFFETT, MT
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1994, 12 (06): : 3054 - 3061
[5] Modeling of nitride layer formation during plasma nitriding of iron
Faculty of Physics, Department of Solid State Physics, Sofia University, 5 James Bouchier Boulevard, BG-1164 Sofia, Bulgaria
不详
Comput Mater Sci, 1 (22-34):
[6] Modeling of nitride layer formation during plasma nitriding of iron
Dimitrov, VI
D'Haen, J
Knuyt, G
Quaeyhaegens, C
Stals, LM
COMPUTATIONAL MATERIALS SCIENCE, 1999, 15 (01) : 22 - 34
[7] Effect of Surface Deposits on Nitriding Layer Formation of Active Screen Plasma Nitriding
Nishimoto, Akio
Fukube, Takahiro
Tanaka, Toshiya
MATERIALS TRANSACTIONS, 2016, 57 (10) : 1811 - 1815
[8] The effect of oxide scale roughness on the plasticity of iron aluminide alloy
Kupka, M.
Marut, J.
Aniolek, K.
Barylski, A.
VACUUM, 2016, 132 : 111 - 118
[9] Recrystallization and grain growth in a B2 iron aluminide alloy
Samajdar, I
Ratchev, P
Verlinden, B
Schryvers, D
INTERMETALLICS, 1998, 6 (05) : 419 - 425
[10] INVESTIGATIONS ON NITRIDE LAYER FORMATION AT THE IRON SURFACE DURING GAS NITRIDING
JENTZSCH, WD
BOHMER, S
KRISTALL UND TECHNIK-CRYSTAL RESEARCH AND TECHNOLOGY, 1979, 14 (05): : 617 - 624

← 1 2 3 4 5 →