Characterization and Comparison of Deformation Induced Sensitization and Carbide Precipitation: Waste/Container Corrosion

变形诱导敏化和碳化物沉淀的表征和比较：废物/容器腐蚀

• 批准号: 9105065
• 负责人: Lawrence Murr
• 金额: $ 20.07万
• 依托单位: University of Texas at El Paso
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-08-01 至 1994-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9105065&HistoricalAwards=false
• 关键词: Characterization; Comparison; Deformation; Induced; Sensitization

The proposed research program is designed to examine the fundamentals of both interfacial carbide precipitation and precipitation of carbides within a grain matrix in 316 stainless steel. Researcher, including engineers and minority students at the University of Texas, will compare the geometrical and crystallographic features of 316 stainless steel with martensite nucleation in 304 stainless steel. Their task will be to determine whether specific interfacial sites for precipitation of carbides are also specific for martensite nucleation, and whether invariant strain intersections within the grains (which are specific to alpha prime-martensite nucleation in 304 stainless steel) are precipitation nucleation sites in 316 stainless steel. Practical consequences of developing a fundamental understanding of the deformation-induced sensitization and precipitation mechanisms will be examined in the context of potential alloy modification and modeling of potential hazards imposed by storing and transporting hazardous and corrosive wastes in stainless steel containers or pipeline systems.

拟议的研究计划旨在研究 界面碳化物沉淀和 在316中，碳化物在颗粒基质中沉淀 不锈钢 研究人员，包括工程师和 德克萨斯大学的少数民族学生， 316的几何和晶体学特征 304不锈钢马氏体形核 钢 他们的任务将是确定是否具体 碳化物沉淀的界面位置也 特定于马氏体成核，以及是否不变 晶粒内的应变交叉点（其特定于 304不锈钢中的α '马氏体形核）是 316不锈钢中的沉淀形核位置。 发展一个基本的 了解变形诱导的敏化作用， 降水机制将在以下背景下进行研究： 电位合金化及电位建模 储存和运输危险品和 不锈钢容器或管道中的腐蚀性废物 系统.