Model of Grain Deformation Method for Evaluation of Creep Life in In-Service Components  

Oleh:

Kim, Hyo-Jin ; Jung, Jae-Jin

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Engineering Materials and Technology vol. 122 no. 1 (2000), page 56-59.
Topik: DEFORMATION; grain deformation; method; evaluation; creep life; service components

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ87.1 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

The creep life can be evaluated by the degree of grain deformation since the grains of Cr - Mo base material deform in the direction of stress. The grain deformation method using image - processing technique is developed for life assessment of in - service high temperature components. The new assessment model for the method is presented to apply to in - service components and is verified by interrupted creep test for ex - serviced material of 1Cr - 0.5Mo steel. The proposed model, which is irrespective of stress direction, is to evaluate mean of the absolute deviation for the measured aspect ratios of the grains sections.

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