Hydrogen-assisted crack propagation in α-iron during elasto-plastic fracture toughness tests

被引：27

作者：

Birenis, Domas ^{[1
]}

Ogawa, Yuhei ^{[2
,3
]}

Matsunaga, Hisao ^{[4
,5
,6
]}

Takakuwa, Osamu ^{[4
,5
,7
]}

Yamabe, Junichiro ^{[7
,8
]}

Prytz, Oystein ^{[1
]}

Thogersen, Annett ^{[9
]}

机构：

[1] Univ Oslo, Dept Phys, Ctr Mat Sci & Nanotechnol, POB 1048, NO-0316 Oslo, Norway

[2] Kyushu Univ, Grad Sch Engn, Nishi Ku, 744 Motooka, Fukuoka, Fukuoka 8190395, Japan

[3] Japan Soc Promot Sci, Nishi Ku, 744 Motooka, Fukuoka, Fukuoka 8190395, Japan

[4] Kyushu Univ, Dept Mech Engn, Nishi Ku, 744 Motooka, Fukuoka, Fukuoka 8190395, Japan

[5] Kyushu Univ, Res Ctr Hydrogen Ind Use & Storage HYDROGENIUS, Nishi Ku, 744 Motooka, Fukuoka, Fukuoka 8190395, Japan

[6] Kyushu Univ, I2CNER, Nishi Ku, 744 Motooka, Fukuoka, Fukuoka 8190395, Japan

[7] Kyushu Univ, AIST, Hydrogen Mat Lab HydroMate, Nishi Ku, 744 Motooka, Fukuoka, Fukuoka 8190395, Japan

[8] Fukuoka Univ, Dept Mech Engn, Jonan Ku, 8-19-1 Nanakuma, Fukuoka, Fukuoka 8140180, Japan

[9] SINTEF Mat & Chem, POB 124, NO-0314 Oslo, Norway

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2019年 / 756卷

关键词：

Fracture toughness; Hydrogen embrittlement; Dislocation structures; Electron back-scattered diffraction (EBSD); Transmission electron microscopy (TEM); HIGH-PURITY IRON; TEM IN-SITU; PLASTIC-DEFORMATION; PURE IRON; SINGLE; EMBRITTLEMENT; FAILURE; GROWTH; STEELS; INITIATION;

D O I：

10.1016/j.msea.2019.04.084

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Elasto-plastic fracture toughness tests of a commercially pure iron were performed in air and in hydrogen gas at two different pressures. Some unique characteristics of hydrogen-enhanced cracking were exhibited at both the macroscopic and microscopic length scales, based on the observation of fracture surface, fracture plane, plasticity distribution and dislocation structure. The possible mechanisms responsible for the hydrogen-induced degradation of fracture toughness are discussed.

引用

页码：396 / 404

页数：9

共 50 条

[1]

[Anonymous], 2010, KHK 0220 KHK STAND P

[2]

[Anonymous], 2009, E1820 ASTM

[3]

ASME, 2010, ASME BOIL PRESS VESS

[4] OVERVIEW NO-96 - EVOLUTION OF FCC DEFORMATION STRUCTURES IN POLYSLIP [J].

BAY, B ;

HANSEN, N ;

HUGHES, DA ;

KUHLMANNWILSDORF, D .

ACTA METALLURGICA ET MATERIALIA, 1992, 40 (02) :205-219

[5] Interpretation of hydrogen-assisted fatigue crack propagation in BCC iron based on dislocation structure evolution around the crack wake [J].

Birenis, Domas ;

Ogawa, Yuhei ;

Matsunaga, Hisao ;

Takakuwa, Osamu ;

Yamabe, Junichiro ;

Prytz, Oystein ;

Thogersen, Annett .

ACTA MATERIALIA, 2018, 156 :245-253

[6] A TEM in situ study of alloying effects in iron. I-Solid solution softening caused by low concentrations of Ni, Si and Cr [J].

Caillard, D. .

ACTA MATERIALIA, 2013, 61 (08) :2793-2807

[7] A TEM in situ study of alloying effects in iron. II-Solid solution hardening caused by high concentrations of Si and Cr [J].

Caillard, D. .

ACTA MATERIALIA, 2013, 61 (08) :2808-2827

[8] THE KINETICS AND MICROMECHANICS OF HYDROGEN-ASSISTED CRACKING IN FE-3 PCT SI SINGLE-CRYSTALS [J].

CHEN, X ;

GERBERICH, WW .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1991, 22 (01) :59-69

[9] THE ROLE OF STRESS STATE ON HYDROGEN CRACKING IN FE-SI SINGLE-CRYSTALS [J].

CHEN, X ;

FOECKE, T ;

LII, M ;

KATZ, Y ;

GERBERICH, WW .

ENGINEERING FRACTURE MECHANICS, 1990, 35 (06) :997-1017

[10] Hydrogen effects on the interaction between dislocations [J].

Ferreira, PJ ;

Robertson, IM ;

Birnbaum, HK .

ACTA MATERIALIA, 1998, 46 (05) :1749-1757

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