Effect of Cold Working on Sensitization of Austenitic Stainless Steel

Akiyama, Tomohiro; Terasaki, Toshio; Komeda, Hiroyuki

doi:10.2320/jinstmet1952.52.11_1137

Cited by 2 publications

(1 citation statement)

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“…10,11,81,119,122,123 Cold work carried out before sensitisation is found to shorten the time for sensitisation, but the cold work performed after sensitisation treatment is found not to affect the DOS. 124 Detailed work has been carried out to study the effect of prior deformation on types 304, 316, and 316LN steels and the TTS diagrams have been developed by these authors and co-workers. 10,11,81,122 It has been found from these investigations that the minimum time (t min ) needed to initiate sensitisation in type 316LN stainless steel is increased by two orders of magnitude compared to that for types 304 and 316 stainless steel for different levels of cold work.…”

Section: Cold Work and Grain Sizementioning

confidence: 99%

Influence of metallurgical variables on sensitisation kinetics in austenitic stainless steels

Dayal¹,

Parvathavarthini²,

Raj³

2005

International Materials Reviews

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Austenitic stainless steels are the most favoured construction materials for various components required in chemical, petrochemical, fertiliser and nuclear industries. However, these steels are prone to sensitisation. In the sensitised condition, the steels are quite susceptible to intergranular corrosion and intergranular stress corrosion cracking in chloride and caustic environments resulting in the premature failure of the fabricated components during precommissioning and service periods. The topic of sensitisation has been of interest in studies worldwide. The studies included mechanism of sensitisation, test methods, data generation, and influence of several variables and protection methods. This article covers a review of important contributions to this topic with special emphasis on the influence of metallurgical variables. The present state of understanding is discussed in the following areas: mechanisms, test methods, sensitisation diagrams, influence of chemical composition, cold work and grain size, low temperature sensitisation, modelling and laser surface treatment. The need for further investigation in certain areas is highlighted.

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