|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||2016 Technical Division Student Poster Competition
||SPG-35: Joining 1018 Steel to 304L Stainless Steel by Friction and Fusion Welding
||Nathan Switzner, Zhenzhen Yu
|On-Site Speaker (Planned)
Cladding low alloy steel with stainless steel is common in the petrochemical industry to increase service life and reduce costs of pipes and reservoirs. Fusion welding is a common cladding process, but partial mixing and segregation during solidification can cause detrimental interface martensite, which may lead to issues in service. If martensite forms due to liquid dilution and partial mixing in fusion welding, what microstructural mechanism causes a martensite layer in solid-state welding?
Austenitic stainless steel was joined to mild steel by both fusion and friction welding methods. Analysis included light optical microscopy, Vickers hardness, scanning electron microscopy with energy dispersive spectroscopy (EDS), and electron backscatter diffraction (EBSD). Objectives were to compare solid state weld with fusion weld interface and determine microstructural mechanism for martensite formation in solid-state (friction) welding.
||Definite: None Selected