ばいちょ(売価調査)、価格比較とネットでのお買い物を楽に

内容説明 Ultra-Fine Grained Steels discusses results of the New Generation Iron and Steel Materials research project funded over the last ten years. Modern sustainability requirements want that iron and steel must meet four conditions: stronger， longer service life， leading-edge manufacturing technology (low cost， material and energy efficient)， and environmentally sound (waste recycling， reduced carbon dioxide emission). Therefore， new generation iron and steel materials featuring ?double strength and double service life? are needed (labeled ?ultra steels? in Japan). Professor Weng (PhD， Materials Science and Engineering， Pennsylvania State University) has been engaged in the research of new generation structural materials for the last twelve years being Chief Scientist of three consecutive national research programs in China.