Acceleration of nickel diffusion by high tensile stress in cold-worked type 316 stainless steel at 450°C

The effect of tensile stress on diffusion was studied by the diffusion couple method. A diffusion couple was prepared by electroless plating a nickel thin layer on the round notch surface of a compact tension-type specimen of 20% cold-worked Type 316 stainless steel. The couple was diffused at 450°C...

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Bibliographic Details
Published in:Philosophical magazine (Abingdon, England) England), 2018-10, Vol.98 (28), p.2609-2617
Main Authors: Arioka, Koji, Iijima, Yoshiaki, Miyamoto, Motoki
Format: Article
Language:English
Subjects:
cold work
high tensile stress
Nickel diffusion
Type 316 stainless steel
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Summary:The effect of tensile stress on diffusion was studied by the diffusion couple method. A diffusion couple was prepared by electroless plating a nickel thin layer on the round notch surface of a compact tension-type specimen of 20% cold-worked Type 316 stainless steel. The couple was diffused at 450°C for 4003 h under the maximum tensile stress of 553 MPa in the load direction. A rapid diffusion coefficient of nickel in the Type 316 stainless steel was observed at the high tensile stress zone that was 6.5 times faster than that at the low-stress zone.
ISSN:1478-6435
1478-6443
DOI:10.1080/14786435.2018.1495852