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http://dx.doi.org/10.5916/jkosme.2014.38.6.698

Fundamental study on the weldability and formability of INCOLOY825 alloys and STS316L alloys  

Kim, Pyung-Su (Engineering Center, Hanjo Co., Ltd.)
Choi, Ho-Young (Hanjo Co., Ltd., Engineering Center)
Choi, So-Young (Graduate School, Korea Maritime and Ocean University)
Kim, Young-Sik (Korea Institute of Science and Technology Information)
Kim, Jong-Do (Division of Marine Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.38, no.6, 2014 , pp. 698-703 More about this Journal
Abstract
Currently, demand of liquefied natural gas as an alternatice energy inceases because of depletion of fossil fuels. it is accompanied by inceasing demand of LNG ship. Consequentially, it is expected that demand of bellows for LNG ship increase. The material used for LNG vessels's bellows is an alloy of INCOLOY 825 and STS316L, which are strong against low-temperature brittleness and seawater corrosion. This study establishes the welding condition of LNG vessel's bellows material in extremely low temperature, and analyzes the formability of weld through Erichsen Test. When welding was conducted at optimal condition, tensile strength of weld presneted strength value up to 90% compared with base metal. As results of formalbility through Erichsen test, very good weld that failure occrued in base metal was gotten.
Keywords
Bellows; Formability; Weldability; STS316L; INCOLOY 825;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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