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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium 2017 Technical Division Young Professional Poster Competition
Presentation Title YP-5 A Study of Brittle Fracture Mechanism of Non-quenched and Tempered N80 Tubing Used in Gas and Oil Well
Author(s) Caihong Lu, Chun Feng
On-Site Speaker (Planned) Caihong Lu
Abstract Scope Non-quenched and tempered N80 tubing belongs to economical low alloy steel. Chemical composition, microstructure, mechanical property, fracture morphology and micro-area chemical composition of the brittle fractured tubing was analyzed. The results showed that the inhomogeneous cooling after finish-rolling or normalization and segregation of V element results in hard-brittle banded martensite formation in the tube, which significantly reduced the toughness of tubing. N80 tube brittle fractured from the banded structure of martensite. Failure tubing was re-heat-treated, eliminated martensite by controlling cooling rate, uniform fine pearlite and ferrite, and good toughness tubing was obtained.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

YP-10: Effect of Neutron Irradiation on Friction Stir Processed ODS Alloys (MA956 and MA754)
YP-11: In Situ Ion Irradiation of Multilayer (TiN, TiAlN) Ceramic Coating for Accident Tolerant Zr-alloy Fuel Claddings
YP-12: Study of Magneto-optical Characteristics of Cerium Substituted Yttrium Iron Garnet Thin Films on Quartz Substrates
YP-1: Influence of Dissolved Oxygen Content on the Oxidation Behavior of Ni-based Alloys in High Temperature Water Vapor
YP-2: Isothermal and Non-isothermal Studies of Pt-Rh Thermocouple Failure Caused by Two Phosphorus Diffusion Mechanisms
YP-3: Effect of Hot Extrusion on Mechanical and Corrosion Properties of a MgCaSr Alloy
YP-4: Increased Shear Deformation through Friction Stir Back Extrusion of Mg AZ31B: Textural Evolution and Its Relationship to Mechanical Properties
YP-5 A Study of Brittle Fracture Mechanism of Non-quenched and Tempered N80 Tubing Used in Gas and Oil Well
YP-6: Commercial-ready Large Scale Manufacturing of Light-weight Aluminum Metal Matrix Composite
YP-7: Octo-Strain: A Novel Multiaxial Loading Device for In-situ Stress Measurements through Neutron Diffraction
YP-8: The Materials Science behind Ice Cream Making
YP-9: Body-centered Phase of Shock Loaded Single Crystal Copper

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