SYMPOSIA PAPER Published: 01 January 1980
STP38203S

On the Embrittlement and Toughness of High-Purity Fe-30Cr-2Mo Alloy

Source

Experiments were conducted to explain unexpected embrittlement phenomena encountered in fabricating a high-purity Fe-30Cr-2Mo alloy. By means of a hydrostatic tension test with a Bridgman-type specimen it was found that the fracture behavior of the alloy is highly dependent on stress state. Under conditions of low triaxial stress, the alloy displays excellent ductility. Under conditions of high triaxial stress, however, it shows less strain to fracture and a transition from ductile to cleavage fracture. The toughness of the Fe-30Cr-2Mo alloy can be significantly improved by thermomechanical processing.

Author Information

Saito, S
The Research Institute for Iron, Steel and Other Metals, Tohoku University, Japan
Tokuno, H
The Research Institute for Iron, Steel and Other Metals, Tohoku University, Japan
Shimura, M
The Research Institute for Iron, Steel and Other Metals, Tohoku University, Japan
Tanaka, E
The Research Institute for Iron, Steel and Other Metals, Tohoku University, Japan
Kataura, Y
The Research Institute for Iron, Steel and Other Metals, Tohoku University, Japan
Ototani, T
Metal Research Corp., Japan
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Details
Developed by Committee: A01
Pages: 77–98
DOI: 10.1520/STP38203S
ISBN-EB: 978-0-8031-5553-4
ISBN-13: 978-0-8031-0792-2