04398nam 22007335 450 991029866040332120200630104502.04-431-54499-210.1007/978-4-431-54499-9(CKB)3710000000228774(EBL)1967293(OCoLC)890472631(SSID)ssj0001353777(PQKBManifestationID)11724547(PQKBTitleCode)TC0001353777(PQKBWorkID)11317314(PQKB)10180052(MiAaPQ)EBC1967293(DE-He213)978-4-431-54499-9(PPN)181350793(EXLCZ)99371000000022877420140904d2014 u| 0engur|n|---|||||txtccrAnalysis of Fracture Toughness Mechanism in Ultra-fine-grained Steels The Effect of the Treatment Developed in NIMS /by Toshihiro Hanamura, Hai Qiu1st ed. 2014.Tokyo :Springer Japan :Imprint: Springer,2014.1 online resource (71 p.)NIMS Monographs,2197-8891Description based upon print version of record.4-431-54498-4 Includes bibliographical references.Introduction: Issues Concerning Environmental Problems and Related Advanced Steel Techniques -- Ultra-Fine Grained Steel: Relationship between grain size and tensile properties -- Ultra-Fine Grained Steel: Relationship between grain size and impact properties -- Fracture toughness (crack-tip-opening displacement) -- Summary.In this book, advanced steel technologies mainly developed at the National Institute for Materials Science (NIMS), Japan, for structure control, mechanical properties, and the related mechanisms are introduced and discussed. NIMS has long worked on developing advanced steel techniques, namely, producing advanced steels by using only simple alloying elements such as carbon, manganese, and silicon, and also by utilizing steel scrap. The hope is that this approach will lead to a technology of a so-called steel-to-steel recycling process, with the ultimate goal of a recycling process such as an automotive-steel-to-automotive-steel recycling process to take the place of the current cascade-type recycling system. The main idea is to utilize ultra-grain refining structures and hetero structures as well as martensite structures. In particular, the focus of this book is on tensile strength and toughness of advanced steels from both the fundamental and engineering points of view. Fundamentally, a unique approach to analysis is taken, based on fracture surface energy as effective grain size is employed to better understand the mechanism of property improvement. From the engineering point of view, in fracture toughness such factors as crack tip opening displacement (CTOD) of advanced steels are evaluated in comparison with those of conventional steels.NIMS Monographs,2197-8891MetalsManufacturesStructural materialsMaterials scienceMetallic Materialshttps://scigraph.springernature.com/ontologies/product-market-codes/Z16000Manufacturing, Machines, Tools, Processeshttps://scigraph.springernature.com/ontologies/product-market-codes/T22050Structural Materialshttps://scigraph.springernature.com/ontologies/product-market-codes/Z11000Characterization and Evaluation of Materialshttps://scigraph.springernature.com/ontologies/product-market-codes/Z17000Metals.Manufactures.Structural materials.Materials science.Metallic Materials.Manufacturing, Machines, Tools, Processes.Structural Materials.Characterization and Evaluation of Materials.669.96142Hanamura Toshihiroauthttp://id.loc.gov/vocabulary/relators/aut1065310Qiu Haiauthttp://id.loc.gov/vocabulary/relators/autMiAaPQMiAaPQMiAaPQBOOK9910298660403321Analysis of Fracture Toughness Mechanism in Ultra-fine-grained Steels2544454UNINA