Microstructures and mechanical behavior of the bimetallic additively-manufactured structure(BAMS)of austenitic stainless steel and Inconel 625

作     者：Md.R.U.Ahsan Xuesong Fan Gi-Jeong Seo Changwook Ji Mark Noakes Andrzej Nycz Peter KLiaw Duck Bong Kim R.U.Ahsan;Xuesong Fan;Gi-Jeong Seo;Changwook Ji;Mark Noakes;Andrzej Nycz;Peter K.Liaw;Duck Bong Kim

作者机构：Department of Mechanical EngineeringTennessee Technological UniversityCookevilleTN38505United States Department of Materials Science and EngineeringThe University of TennesseeKnoxvilleTN37996United States Department of Manufacturing and Engineering TechnologyTennessee Technological UniversityCookevilleTN38505United States Advanced Forming Process R&D GroupKorea Institute of Industrial TechnologyUlsan 44413South Korea Oak Ridge National LaboratoryOak RidgeTN37830United States 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2021年第74卷第15期

页      面：176-188页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：This study has been conducted with the support of the Korea Institute of Industrial Technology as a project on the development of metal 3D printing materials and process optimization technology for medium-and large-sized transportation part mold manufacturing(KITECH JE200008) 

主　　题：WAAM Additive manufacturing BAMS Functionally-graded structures Microstructures Mechanical properties 

摘      要：Bimetallic additively manufactured structures(BAMSs)can replace traditionally-fabricated functionallygraded-components through fusion welding processes and can eliminate locally-deteriorated mechanical properties arising from *** present work fabricates a BAMS by sequentially depositing the austenitic stainless-steel and Inconel625 using a gas-metal-arc-welding(GMAW)-based wire+arc additive manufacturing(WAAM)*** mapping shows a smooth compositional transition at the interface without any *** materials being the face-center-cubic(FCC)austenite,the electron backscattered diffraction(EBSD)analysis of the interface shows the smooth and cross-interfacecrystallographic growth of long-elongated grains in the*** hardness values were within the range of 220-240 HV for both materials without a large deviation at the *** to the controlled thermal history,mechanical testing yielded a consistent result with the ultimate tensile strength and elongation of 600 MPa and 40%,respectively,with the failure location on the stainless-steel *** study demonstrates that WAAM has the potential to fabricate BAMS with controlled properties.