Development of high throughput assays for establishing process-structure-property linkages in multiphase polycrystalline metals: Application to dual-phase steels

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• 作者：Ali Khosravani^a ; Ahmet Cecen^b ; Surya R. Kalidindi^a ; ^b ; ^{surya.kalidindi@me.gatech.edu" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Spherical indentation ; Process-structure-property linkages ; Dual phase steel ; 2-Point spatial correlations
• 刊名：Acta Materialia
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：123
• 期：Complete
• 页码：55-69
• 全文大小：6803 K

文摘

Process-structure-property (PSP) linkages are central to the development and deployment of advanced materials in emerging technologies. Conventional approaches for establishing these are generally highly customized, qualitative, and demand major investments of time and effort. In this paper, we formulate novel, data-driven, high throughput, assays for exploring PSP linkages in structural metals. These assays are built on recent advances in low-dimensional quantification of material structure using spatial correlations and principal component analyses, as well as in the mechanical characterization using spherical nanoindentation. These novel protocols are demonstrated on a dual phase (DP) steel that exhibits rich multiphase polycrystalline microstructures.