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Keywords = shipbuilding and marine equipment market

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16 pages, 7058 KiB  
Article
Research for the Optimal Flux-Cored Arc Welding Process of 9% Nickel Steel Using Multi Object Optimization with Solidification Crack Susceptibility
by Minho Park, Jisun Kim, Changmin Pyo, Joonsik Son and Jaewoong Kim
Materials 2021, 14(7), 1659; https://doi.org/10.3390/ma14071659 - 28 Mar 2021
Cited by 6 | Viewed by 2586
Abstract
The environment of the global shipbuilding market is changing rapidly. Recently, the International Maritime Organization (IMO) has tightened regulations on sulfur oxide content standards for marine fuels and tightened sulfur oxide emission standards for the entire coastal region of China to consider the [...] Read more.
The environment of the global shipbuilding market is changing rapidly. Recently, the International Maritime Organization (IMO) has tightened regulations on sulfur oxide content standards for marine fuels and tightened sulfur oxide emission standards for the entire coastal region of China to consider the environment globally and use LNG as a fuel. There is a tendency for the number of vessels to operate to increase significantly. To use cryogenic LNG fuel, various pieces of equipment, such as storage tanks or valves, are required, and equipment using steel, which has excellent impact toughness in cryogenic environments, is required. Four steel types are specified in the IGG Code, and 9% Ni steel is mostly used for LNG fuel equipment. However, to secure safety at cryogenic temperatures, a systematic study investigating the causes of quality deterioration occurring in the 9% Ni steel welding process is required and a discrimination function capable of quality evaluation is urgent. Therefore, this study proposes a plan where the uniform quality of 9% Nickel steel is secured by reviewing the tendency of the solidification crack susceptibility among the quality problems of cryogenic steel to establish the criteria for quality deterioration and to develop a system capable of quality discrimination and defect avoidance. Full article
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16 pages, 1186 KiB  
Article
SCRM Awareness in the Shipbuilding and Marine Equipment Market: Empirical Evidence from South Korea, China, and Singapore
by Kiyoung Jeong, Jaeung Cha and Yulseong Kim
Sustainability 2020, 12(12), 5115; https://doi.org/10.3390/su12125115 - 23 Jun 2020
Cited by 5 | Viewed by 4318
Abstract
This study analyzes the relationships between the awareness levels of supply chain risk management (SCRM) importance, the level of development, and their influence on business performance in the shipbuilding and marine equipment industry. In addition, this study highlights the differences in awareness levels [...] Read more.
This study analyzes the relationships between the awareness levels of supply chain risk management (SCRM) importance, the level of development, and their influence on business performance in the shipbuilding and marine equipment industry. In addition, this study highlights the differences in awareness levels according to country-specific characteristics by comparing South Korea, China, and Singapore, leading suppliers of shipbuilding and marine equipment. Based on a questionnaire survey of 165 respondents, this study conducted a factor analysis and ANOVA. The results indicate that the surveyed companies highly value the importance of risk management overall, with the information and forecast risk factor being highest rated. However, the high levels of awareness of importance does not lead to satisfactory levels of SCRM development. In addition, the comparative analysis between countries indicates statistically significant differences in the awareness of importance and the development level. Finally, the results show that awareness of environmental risk and destructive risk factors, which are vital for long-term survival and sustained competitive advantages, are low. The findings in this study offers a useful baseline for future studies on developing SCRM in the shipbuilding and marine equipment market and establishing relevant policies and systems. Full article
(This article belongs to the Special Issue Supply Chain Risk Management)
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