Journal ArticleDOI
Varied sub-grain microstructure impacts fracture behavior and resistance in 316LN weld metal
Dai Keshun,Zhu Li,Xiao Wenkai,Chen Fangyu,Zhang Fuju,Yang Xue,Mudi Kunqi,Zhai Xian,Zhang Mingxiang +8 more
TLDR
In this article, a numerical model based on cohesive finite element method (CFEM) was presented to analyze the effect of 316LN cast microstructure characteristics on its fracture behavior, three kinds of morphological microstructures were numerically modeled with quantified parameters.About:
This article is published in Engineering Fracture Mechanics.The article was published on 2017-05-01. It has received 5 citations till now. The article focuses on the topics: Fracture mechanics & Fracture (geology).read more
Citations
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Axial-torsional high-cycle fatigue of both coarse-grained and nanostructured metals: A 3D cohesive finite element model with uncertainty characteristics
TL;DR: In this paper, the combined axial-torsional fatigue life and damage evolution of both coarse-grained and nanostructured metals are modeled by a 3D cohesive finite element method with uncertainty characteristics.
Journal ArticleDOI
Impact Toughness and Fracture Structure about Welded Joints of Low Chromium Nickel Ferritic Stainless Steel Containing Ce/Ti
Phased Array Ultrasonic Testing of Austenitic Stainless Steel Welds of the 11 T HL-LHC Dipole Magnets
TL;DR: In this paper, a non-destructive test method based on Phased Array Ultrasonic Testing (PAUT) has been developed and applied for the inspection of the first 11 T dipole prototype magnet half shell welds.
Journal ArticleDOI
Microstructure and cryogenic toughness of 316LN austenite stainless steel weld metal welded by NG-MAG arc welding
Journal ArticleDOI
Effect of Microstructure on Mechanical Properties of 316 LN Austenitic Stainless Steel
Kewei Fang,Kunjie Luo,Lei Wang +2 more
TL;DR: In this article , the microstructure development of 316 LN austenitic stainless steel during the aging process is investigated, and a negatively linear relationship between Brinell hardness and Charpy impact energy is established, which could be utilized to predict the degree of thermal embrittlement.
References
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Book
Continuum theory of plasticity
Akhtar S. Khan,Sujian Huang +1 more
TL;DR: In this article, the authors present a general theory of strain and stress for the deformation of single crystals in a polycrystalline polycrystal plasticity model, based on the classical theory of plasticity.
Journal ArticleDOI
Hardened austenite steel with columnar sub-grain structure formed by laser melting
TL;DR: In this paper, a fine columnar sub-grain structure of size 0.5μm was observed inside each individual large grain of single-crystal nature and with grain sizes in the range of 10-100μm.
Journal ArticleDOI
A grain level model for the study of failure initiation and evolution in polycrystalline brittle materials. Part I: Theory and numerical implementation
TL;DR: In this paper, a model to analyze material microstructures subjected to quasi-static and dynamic loading is presented to analyze the evolution of stress induced microcracking, from the material fabrication stage, can be captured.
Journal ArticleDOI
A grain level model for the study of failure initiation and evolution in polycrystalline brittle materials. Part II: Numerical examples
TL;DR: In this article, a solution convergence analysis of a grain-level micromechanical model for crack initiation and propagation is presented, where the authors show that when the length of the cohesive elements is smaller than the cohesive zone size, and when the initial slope of the traction-separation cohesive law is properly chosen, the predictions concerning microcrack initiation and evolution are mesh independent.
Journal ArticleDOI
Micromechanical Simulation of Dynamic Fracture Using the Cohesive Finite Element Method
Jun Zhai,Vikas Tomar,Min Zhou +2 more
TL;DR: In this paper, the effects of microstructural heterogeneity, phase morphology, phase distribution, and size scale on fracture performance were quantified using a cohesive finite element method (CFEM).