Corrosion properties of welded ferritic-martensitic steels in liquid lead-bismuth AT 600C

Asril Pramutadi Andi Mustari; Minoru Takahashi

doi:10.1115/ICONE18-29927

Corrosion properties of welded ferritic-martensitic steels in liquid lead-bismuth AT 600C

Asril Pramutadi Andi Mustari^*, Minoru Takahashi

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A static corrosion test for ferritic-martensitic steel HCM12A with three types of welding in lead-bismuth eutectic (LBE) was conducted at 600°C for 500 h. The specifications of TIG welding, YAG laser welding and electron beam welding were 40A/12V of electrical conductance, 278W/14.3J of heat input and 5.0 mA of beam electric current, respectively. Oxygen concentration was controlled to be about 4.7×10^-6wt% by injecting Ar-H2-H2O gas mixture into LBE. After corrosion test, cross sections of the specimens were analyzed by using optical microscope and SEM/EDX. Toughness profiles of fusion zone and base metal were determined by using Vickers hardness tool. The results show coarse grain structure in fusion zone (FZ) and typical ferritic-martensitic grain structure in base metal (BM). It was found that those Cr-rich spinel oxide layer and diffusion zone were formed on the surface. The total thickness of oxide layer and diffusion zone on and in the fusion zone was about 18-30μm. It was much thicker than 10-15μm on BM. The hardness was higher in the fusion zone than in the BM.

Original language	English
Title of host publication	International Conference on Nuclear Engineering, Proceedings, ICONE
Pages	229-235
Number of pages	7
Volume	5
DOIs	https://doi.org/10.1115/ICONE18-29927
Publication status	Published - 2010
Event	18th International Conference on Nuclear Engineering, ICONE18 - Xi'an Duration: 2010 May 17 → 2010 May 21

Other

Other	18th International Conference on Nuclear Engineering, ICONE18
City	Xi'an
Period	10/5/17 → 10/5/21

ASJC Scopus subject areas

Nuclear Energy and Engineering

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10.1115/ICONE18-29927

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title = "Corrosion properties of welded ferritic-martensitic steels in liquid lead-bismuth AT 600C",

abstract = "A static corrosion test for ferritic-martensitic steel HCM12A with three types of welding in lead-bismuth eutectic (LBE) was conducted at 600°C for 500 h. The specifications of TIG welding, YAG laser welding and electron beam welding were 40A/12V of electrical conductance, 278W/14.3J of heat input and 5.0 mA of beam electric current, respectively. Oxygen concentration was controlled to be about 4.7×10-6wt% by injecting Ar-H2-H2O gas mixture into LBE. After corrosion test, cross sections of the specimens were analyzed by using optical microscope and SEM/EDX. Toughness profiles of fusion zone and base metal were determined by using Vickers hardness tool. The results show coarse grain structure in fusion zone (FZ) and typical ferritic-martensitic grain structure in base metal (BM). It was found that those Cr-rich spinel oxide layer and diffusion zone were formed on the surface. The total thickness of oxide layer and diffusion zone on and in the fusion zone was about 18-30μm. It was much thicker than 10-15μm on BM. The hardness was higher in the fusion zone than in the BM.",

author = "Mustari, {Asril Pramutadi Andi} and Minoru Takahashi",

year = "2010",

doi = "10.1115/ICONE18-29927",

language = "English",

isbn = "9780791849330",

volume = "5",

pages = "229--235",

booktitle = "International Conference on Nuclear Engineering, Proceedings, ICONE",

note = "18th International Conference on Nuclear Engineering, ICONE18 ; Conference date: 17-05-2010 Through 21-05-2010",

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T1 - Corrosion properties of welded ferritic-martensitic steels in liquid lead-bismuth AT 600C

AU - Mustari, Asril Pramutadi Andi

AU - Takahashi, Minoru

PY - 2010

Y1 - 2010

N2 - A static corrosion test for ferritic-martensitic steel HCM12A with three types of welding in lead-bismuth eutectic (LBE) was conducted at 600°C for 500 h. The specifications of TIG welding, YAG laser welding and electron beam welding were 40A/12V of electrical conductance, 278W/14.3J of heat input and 5.0 mA of beam electric current, respectively. Oxygen concentration was controlled to be about 4.7×10-6wt% by injecting Ar-H2-H2O gas mixture into LBE. After corrosion test, cross sections of the specimens were analyzed by using optical microscope and SEM/EDX. Toughness profiles of fusion zone and base metal were determined by using Vickers hardness tool. The results show coarse grain structure in fusion zone (FZ) and typical ferritic-martensitic grain structure in base metal (BM). It was found that those Cr-rich spinel oxide layer and diffusion zone were formed on the surface. The total thickness of oxide layer and diffusion zone on and in the fusion zone was about 18-30μm. It was much thicker than 10-15μm on BM. The hardness was higher in the fusion zone than in the BM.

AB - A static corrosion test for ferritic-martensitic steel HCM12A with three types of welding in lead-bismuth eutectic (LBE) was conducted at 600°C for 500 h. The specifications of TIG welding, YAG laser welding and electron beam welding were 40A/12V of electrical conductance, 278W/14.3J of heat input and 5.0 mA of beam electric current, respectively. Oxygen concentration was controlled to be about 4.7×10-6wt% by injecting Ar-H2-H2O gas mixture into LBE. After corrosion test, cross sections of the specimens were analyzed by using optical microscope and SEM/EDX. Toughness profiles of fusion zone and base metal were determined by using Vickers hardness tool. The results show coarse grain structure in fusion zone (FZ) and typical ferritic-martensitic grain structure in base metal (BM). It was found that those Cr-rich spinel oxide layer and diffusion zone were formed on the surface. The total thickness of oxide layer and diffusion zone on and in the fusion zone was about 18-30μm. It was much thicker than 10-15μm on BM. The hardness was higher in the fusion zone than in the BM.

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BT - International Conference on Nuclear Engineering, Proceedings, ICONE

T2 - 18th International Conference on Nuclear Engineering, ICONE18

Y2 - 17 May 2010 through 21 May 2010

ER -

Corrosion properties of welded ferritic-martensitic steels in liquid lead-bismuth AT 600C

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