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前言 5Ni钢的耐海水腐蚀行为与其所处的特定环境的化学、物理、生物等综合因素密切相关。其焊接构件将在浩瀚的海洋中航行、停靠码头。因此,海水流速、温度变化、干湿交替、海生物的不均匀附着,淤泥和海生物的随机沉积等多变的非常苛刻的腐蚀环境,均是加速5Ni钢腐蚀的因素。 本文在试验室模拟试验研究的基础上,通过5Ni钢等钢种的实海挂片腐蚀试验、实船挂片腐蚀试验、异钢种接触实海挂片腐蚀试验,综合可靠的研究和评价5Ni钢的耐海水腐蚀性能,为5Ni钢在国民经济中越来越广泛地应用寻求防护方法提供依据,以减少和防止5Ni钢的海水腐蚀,这是我们研究工作的主要目的。
Preface The 5Ni steel resistance to seawater corrosion is closely related to the chemical, physical, biological and other comprehensive factors of the specific environment in which it is located. Its welded components will sail in the vast ocean and dock at the docks. Therefore, the harsh corrosive environments such as seawater flow rate, temperature change, alternation of wet and dry conditions, uneven attachment of marine organisms, random deposition of silt and marine life, are the factors that accelerate the corrosion of 5Ni steel. Based on the laboratory simulation test research, through 5Ni steel and other kinds of real sea hangings corrosion test, real boat hangs corrosion test, different types of steel contact real sea hangs corrosion test, comprehensive and reliable research and evaluation of 5Ni The resistance to seawater corrosion of steel provides the basis for the application of 5Ni steel in the national economy to find ways of protection more and more to reduce and prevent seawater corrosion of 5Ni steel, which is the main purpose of our research work.