成果報告書詳細
管理番号20160000000736
タイトル*平成27年度中間年報 革新的新構造材料等研究開発
公開日2016/9/28
報告書年度2015 - 2015
委託先名新構造材料技術研究組合
プロジェクト番号P14014
部署名材料・ナノテクノロジー部
和文要約
英文要約Title: Innovative Structural Materials Project (Future Pioneering Project) (FY2014-FY2017) FY2015 Annual Report

(1) Development of Joining Technology:In the joining technology of medium and high carbon steel plate, the appropriate power supply conditions were clarified for the resistance spot welding of the medium and high carbon steel plate. (2) Development of innovative titanium materials:We examined the effect of the rolling conditions on the porosity of a thin plate. In the titanium material consistent manufacturing process technology development, we considered the oxygen content for considering de-acid refining conditions to 300ppm or less by the thermodynamic study, and also were able to validate the world's first dissolved de-acid technology. (3) Development of innovative aluminum materials:In the development of high strength and high toughness aluminum alloy: for the alloy composition determined in 2014, properties were determined with examining necessary characteristics (strength, ductility, fracture toughness, SCC resistance). (4) Development of innovative magnesium materials:We aim to optimize the relationship between the organization and the mechanical properties of the extruded flame-retardant material, it was able to achieve a significantly faster extrusion rate than the present alloy. In rare earth-free alloy, it has passed the aim to develop a magnesium alloy extruded material to achieve the intermediate target. (5) Development of innovative steel sheet:While leveraging the knowledge of the residual γ state control in the Fe-C system in 2014, it was promoted the microstructure control technology for an ideal structure. In addition, less than rare earth element addition amount of 10wt% (it is a 2015 intermedium target), stress-strain curve of the middle and high carbon steel which has tensile strength 1.2GPa with a more than 15% elongation was evaluated in one year ahead of schedule. (6) Development of thermoplastic CFRP:In the development and the development of structural design and application processing technology of thermoplastic CFRP, as the goals of 2015, the establishment of LFT-D element technology, goal with the project goals and the physical properties based on it was achieved. (8) Strategic and basic research:As strategic issues research, we carried out surveillance of new structural materials. We also researched and developed a joining technology and individual issues (materials), and also have investigated the application technologies of the transport equipment, such as an automobile (e.g. participation in an international body meeting, the DOE peer review meeting). In addition, in particular we conducted investigation on the structure material analysis technology (by using neutron radiation) and structural materials adhesive technology, then we were able to clarify these issues were suitable topics.
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