The effects of microstructures on the ductile fracture surface morphology in duplex stainless steel

Yuma Honda; Naoya Yamada; Masatoshi Aramaki; Makoto Oikawa; Osamu Furukimi

The effects of microstructures on the ductile fracture surface morphology in duplex stainless steel

Yuma Honda, Naoya Yamada, Masatoshi Aramaki, Makoto Oikawa, Osamu Furukimi

Materials Processing

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

Abstract

The effect of austcnitc and fcrritc phases on fraclurc stirfacc morphology were examined for a duplex stainless steel by focusing on the crack propagation properties closely related to the formation of fracture surface. The materials tested have the austenite phase and the ferrite phase in the proportion of seven parts to three. The forged duplex stainless steels were tested instrumented Charpy test to investigate the ductile fracture toughness and the crack propagation energy. The microstmcturcs beneath the fracture surface were investigated to reveal the relationship between microstructures and fracture surface morphology. As a result of observations, it was found that the fracture surface profiles examined on austenite grains showed rough periphery and became fine, whereas the fracture surface on lerritc grains was relatively flat. It is caused that the crystal orientation of the austcnitc phase was random and the cracks on the austcnitc grains spread in various, while the ferrite phase have (001) texture and on the ferrite grains spread only in one direction.

Original language	English
Title of host publication	Proceedings of the 17th IFHTSE Congress
Publisher	The Japan Society for Heat Treatment (JSHT)
Pages	522-525
Number of pages	4
ISBN (Electronic)	9780000000002
Publication status	Published - 2008
Event	17th International Federation for Heat Treatment and Surface Engineering Congress 2008, IFHTSE 2008 - Kobe, Japan Duration: Oct 26 2008 → Oct 28 2008

Publication series

Name	Proceedings of the 17th IFHTSE Congress
Volume	2

Other

Other	17th International Federation for Heat Treatment and Surface Engineering Congress 2008, IFHTSE 2008
Country	Japan
City	Kobe
Period	10/26/08 → 10/28/08

All Science Journal Classification (ASJC) codes

Surfaces, Coatings and Films
Condensed Matter Physics
Mechanics of Materials

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The effects of microstructures on the ductile fracture surface morphology in duplex stainless steel. / Honda, Yuma; Yamada, Naoya; Aramaki, Masatoshi; Oikawa, Makoto; Furukimi, Osamu.

Proceedings of the 17th IFHTSE Congress. The Japan Society for Heat Treatment (JSHT), 2008. p. 522-525 (Proceedings of the 17th IFHTSE Congress; Vol. 2).

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

Honda, Y, Yamada, N, Aramaki, M, Oikawa, M & Furukimi, O 2008, The effects of microstructures on the ductile fracture surface morphology in duplex stainless steel. in Proceedings of the 17th IFHTSE Congress. Proceedings of the 17th IFHTSE Congress, vol. 2, The Japan Society for Heat Treatment (JSHT), pp. 522-525, 17th International Federation for Heat Treatment and Surface Engineering Congress 2008, IFHTSE 2008, Kobe, Japan, 10/26/08.

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abstract = "The effect of austcnitc and fcrritc phases on fraclurc stirfacc morphology were examined for a duplex stainless steel by focusing on the crack propagation properties closely related to the formation of fracture surface. The materials tested have the austenite phase and the ferrite phase in the proportion of seven parts to three. The forged duplex stainless steels were tested instrumented Charpy test to investigate the ductile fracture toughness and the crack propagation energy. The microstmcturcs beneath the fracture surface were investigated to reveal the relationship between microstructures and fracture surface morphology. As a result of observations, it was found that the fracture surface profiles examined on austenite grains showed rough periphery and became fine, whereas the fracture surface on lerritc grains was relatively flat. It is caused that the crystal orientation of the austcnitc phase was random and the cracks on the austcnitc grains spread in various, while the ferrite phase have (001) texture and on the ferrite grains spread only in one direction.",

author = "Yuma Honda and Naoya Yamada and Masatoshi Aramaki and Makoto Oikawa and Osamu Furukimi",

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AU - Yamada, Naoya

AU - Aramaki, Masatoshi

AU - Oikawa, Makoto

AU - Furukimi, Osamu

PY - 2008

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N2 - The effect of austcnitc and fcrritc phases on fraclurc stirfacc morphology were examined for a duplex stainless steel by focusing on the crack propagation properties closely related to the formation of fracture surface. The materials tested have the austenite phase and the ferrite phase in the proportion of seven parts to three. The forged duplex stainless steels were tested instrumented Charpy test to investigate the ductile fracture toughness and the crack propagation energy. The microstmcturcs beneath the fracture surface were investigated to reveal the relationship between microstructures and fracture surface morphology. As a result of observations, it was found that the fracture surface profiles examined on austenite grains showed rough periphery and became fine, whereas the fracture surface on lerritc grains was relatively flat. It is caused that the crystal orientation of the austcnitc phase was random and the cracks on the austcnitc grains spread in various, while the ferrite phase have (001) texture and on the ferrite grains spread only in one direction.

AB - The effect of austcnitc and fcrritc phases on fraclurc stirfacc morphology were examined for a duplex stainless steel by focusing on the crack propagation properties closely related to the formation of fracture surface. The materials tested have the austenite phase and the ferrite phase in the proportion of seven parts to three. The forged duplex stainless steels were tested instrumented Charpy test to investigate the ductile fracture toughness and the crack propagation energy. The microstmcturcs beneath the fracture surface were investigated to reveal the relationship between microstructures and fracture surface morphology. As a result of observations, it was found that the fracture surface profiles examined on austenite grains showed rough periphery and became fine, whereas the fracture surface on lerritc grains was relatively flat. It is caused that the crystal orientation of the austcnitc phase was random and the cracks on the austcnitc grains spread in various, while the ferrite phase have (001) texture and on the ferrite grains spread only in one direction.

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