Evaluation of microstructure and mechanical properties of liquid phase diffusion bonded ODS steels

Sanghoon Noh; Ryuta Kasada; Naoko Oono; Noriyuki Iwata; Akihiko Kimura

doi:10.1016/j.fusengdes.2010.01.001

Evaluation of microstructure and mechanical properties of liquid phase diffusion bonded ODS steels

Sanghoon Noh, Ryuta Kasada, Naoko Oono, Noriyuki Iwata, Akihiko Kimura

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

Transient liquid phase bonding(TLPB) was employed to join ODS ferritic steel blocks using an amorphous inset material based on Fe-3B-5Si composition with high vacuum uni-axial hot press. The microstructure and mechanical properties were investigated. The TLPB ODS steel showed rather homogeneous distribution of the insert material elements at joined region, while Y-Ti-O precipitation and grain growth up to 20 μm occurred at the region. The TLPB ODS steel had a fairly good tensile strength, which was up to 90% of base material, at temperatures from room temperature to 700 °C. However, it showed poor elongation and impact fracture energy compared to base material, which is considered to be due to the existence of Y-Ti-O precipitate at bonding interface and large grained insert material.

Original language	English
Pages (from-to)	1033-1037
Number of pages	5
Journal	Fusion Engineering and Design
Volume	85
Issue number	7-9
DOIs	https://doi.org/10.1016/j.fusengdes.2010.01.001
Publication status	Published - 2010 Dec
Externally published	Yes

Keywords

Oxide dispersion strengthened steel
Transient liquid phase bonding

ASJC Scopus subject areas

Civil and Structural Engineering
Nuclear Energy and Engineering
Materials Science(all)
Mechanical Engineering

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title = "Evaluation of microstructure and mechanical properties of liquid phase diffusion bonded ODS steels",

abstract = "Transient liquid phase bonding(TLPB) was employed to join ODS ferritic steel blocks using an amorphous inset material based on Fe-3B-5Si composition with high vacuum uni-axial hot press. The microstructure and mechanical properties were investigated. The TLPB ODS steel showed rather homogeneous distribution of the insert material elements at joined region, while Y-Ti-O precipitation and grain growth up to 20 μm occurred at the region. The TLPB ODS steel had a fairly good tensile strength, which was up to 90% of base material, at temperatures from room temperature to 700 °C. However, it showed poor elongation and impact fracture energy compared to base material, which is considered to be due to the existence of Y-Ti-O precipitate at bonding interface and large grained insert material.",

keywords = "Oxide dispersion strengthened steel, Transient liquid phase bonding",

author = "Sanghoon Noh and Ryuta Kasada and Naoko Oono and Noriyuki Iwata and Akihiko Kimura",

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language = "English",

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T1 - Evaluation of microstructure and mechanical properties of liquid phase diffusion bonded ODS steels

AU - Noh, Sanghoon

AU - Kasada, Ryuta

AU - Oono, Naoko

AU - Iwata, Noriyuki

AU - Kimura, Akihiko

PY - 2010/12

Y1 - 2010/12

N2 - Transient liquid phase bonding(TLPB) was employed to join ODS ferritic steel blocks using an amorphous inset material based on Fe-3B-5Si composition with high vacuum uni-axial hot press. The microstructure and mechanical properties were investigated. The TLPB ODS steel showed rather homogeneous distribution of the insert material elements at joined region, while Y-Ti-O precipitation and grain growth up to 20 μm occurred at the region. The TLPB ODS steel had a fairly good tensile strength, which was up to 90% of base material, at temperatures from room temperature to 700 °C. However, it showed poor elongation and impact fracture energy compared to base material, which is considered to be due to the existence of Y-Ti-O precipitate at bonding interface and large grained insert material.

AB - Transient liquid phase bonding(TLPB) was employed to join ODS ferritic steel blocks using an amorphous inset material based on Fe-3B-5Si composition with high vacuum uni-axial hot press. The microstructure and mechanical properties were investigated. The TLPB ODS steel showed rather homogeneous distribution of the insert material elements at joined region, while Y-Ti-O precipitation and grain growth up to 20 μm occurred at the region. The TLPB ODS steel had a fairly good tensile strength, which was up to 90% of base material, at temperatures from room temperature to 700 °C. However, it showed poor elongation and impact fracture energy compared to base material, which is considered to be due to the existence of Y-Ti-O precipitate at bonding interface and large grained insert material.

KW - Oxide dispersion strengthened steel

KW - Transient liquid phase bonding

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Evaluation of microstructure and mechanical properties of liquid phase diffusion bonded ODS steels

Abstract

Keywords

ASJC Scopus subject areas

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