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首页> 外文会议>Innovative Solutions for the Advancement of the Transport Industry >THE CORROSION RESISTANCE OF STAINLESS STEELS INAUTOMOTIVE STRUCTURAL APPLICATIONS: SURVEY OFTHREE DEVELOPMENT CASES
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THE CORROSION RESISTANCE OF STAINLESS STEELS INAUTOMOTIVE STRUCTURAL APPLICATIONS: SURVEY OFTHREE DEVELOPMENT CASES

机译：汽车结构应用中不锈钢的耐蚀性：三种开发情况的调查

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摘要

This paper reviews the corrosion-related activities carried out by ACERINOX in three Europeanrnprojects addressing the feasibility of several austenitic and ferritic stainless steels to be used in thernmanufacturing of structural parts for buses, cars, and railway cars.rnThe first of the projects assessed the possible use of stainless steels in the fabrication of buses frames.rnJoint samples of two EN 1.4301 type austenitics, one of them modified for higher pitting corrosionrnresistance, a low-Ni, high-Mn austenitic grade and the EN 1.4003 ferritic were evaluated. In thernsecond project, focused on car making, homogeneous and dissimilar joints of different types werernsubjected to salt spray test and cyclic test. The joints featured different combinations of steel gradesrn(including two types of carbon steels), coating thicknesses and bonding method. The stainless gradesrnunder study were the austenitics EN 1.4301 and 1.4318 in two thicknesses and two structuralrnconditions (annealed and cold worked). The third project examined the construction of sandwichrnpanels made of combinations of cold worked EN 1.4318 and the modified EN 1.4301 steel alreadyrnused in the bus project for the construction of railway car floors.rnThe corrosion resistance investigations allowed to compare and rate different steel grades, structuralrnand surface conditions, joining systems, joint types (homogeneous and dissimilar), pointing outrnparticular aspects of these available options and the need of further study in some of them. From therncorrosion standpoint, the projects proved that the stainless steels can be suitable structural materialsrnfor the automotive sector. They also informed on the different materials-related characteristics thatrnmust be considered for the specific design and service of the stainless components. The results ofrnthese reasearch activities are expected to have yielded valuable information on the stainless steels asrnto materials selection and design purposes in the automotive sector.
机译：本文回顾了ACERINOX在三个欧洲项目中开展的与腐蚀有关的活动，目的是探讨几种奥氏体和铁素体不锈钢用于制造公共汽车，汽车和铁路车辆的结构零件的可行性.rn第一个项目评估了可能的可能性评估了两种EN 1.4301型奥氏体的联合样品，其中一种经改良以提高耐点蚀性，低Ni，高Mn奥氏体等级和EN 1.4003铁素体。在第二个项目中，以汽车制造为重点，对不同类型的均质和异质接头进行了盐雾试验和循环试验。接头具有不同的钢种组合（包括两种碳素钢），涂层厚度和结合方法。研究中的不锈钢等级为奥氏体EN 1.4301和1.4318，两种厚度和两种结构条件（退火和冷加工）。第三个项目检查了由冷加工EN 1.4318和已在公共汽车项目中用于铁路车厢地板制造的EN 1.4301改性钢的组合制成的夹芯板的构造.rn耐腐蚀研究可以比较和评定不同等级，结构和表面的钢种条件，连接系统，关节类型（均质和异质），指出这些可用选项的特殊方面以及其中一些需要进一步研究的需求。从腐蚀的角度来看，这些项目证明了不锈钢可以作为汽车领域的合适结构材料。他们还介绍了与不锈钢有关的不同设计和维修所必须考虑的与材料有关的不同特性。这些研究活动的结果有望获得有关汽车领域不锈钢材料选择和设计目的的有价值的信息。

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