ASMP : proceedings of Asian Symposium on Materials and Processing
Online ISSN : 2424-2853
セッションID: E-12
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E-12 Effect of Temperature on LCF Behavior of 316L(N)/316(N) Weld Joint and 316(N) Weld metal(Session: Fatique/Contact Strength)
G.V. Prasad ReddyR. SandhyaM. ValsanK. Bhanu Sankara Rao
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Cyclic deformation and fracture behavior, under total strain controlled low cycle fatigue (LCF) conditions, have been evaluated for 316(N) weld metal and 316L(N)/316(N) weld joint between 300-873 K. A peak in life has been observed at around 573 K. An anomalous stress response and drastic reduction in fatigue life concomitant with dynamic strain aging (DSA) has been observed between 573-823 K, in both weld metal and weld joint. Manifestations like decrease in half-life plastic strain and increase in half-life stress amplitudes and degree of hardening, reflected the occurrence of DSA. Weld metals have shown better fatigue life compared to weld joints.
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© 2006 一般社団法人 日本機械学会
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