Statistics of oxidation resistance of Ni-(0-15)Co-(8-15)Cr-(0-5)Mo-(0-10)W-(3-8)Al-(0-5)Ti-(0-10)Ta-0.1C-0.01B superalloys at 1000℃ by compositional variations

作     者：Si-Jun Park Kyu-Hyuk Lee Seong-Moon Seo Hi-Won Jeong Young-Soo Yoo HeeJin Jang Si-Jun Park;Kyu-Hyuk Lee;Seong-Moon Seo;Hi-Won Jeong;Young-Soo Yoo;HeeJin Jang

作者机构：Multi-Material Research CenterGwangju-Jeonnam DivisionKorea Automotive Technology InstituteGwangju 62207Republic of Korea Department of Advanced Materials EngineeringChosun UniversityGwangju 61452Republic of Korea High Temperature Materials GroupKorea Institute of Materials ScienceChangwon 51508Republic of Korea Department of Materials Science and EngineeringChosun UniversityGwangju 61452Republic of Korea 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2020年第39卷第8期

页      面：918-927页

核心收录：

学科分类：0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：financially supported by the Fundamental R&D Program for Core Technology of Materials(No.10041233) the Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning(KETEP)(No.20174030201620) 

主　　题：High temperature oxidation Alloy composition Ni-based superalloy Oxidation resistance Design of experiments 

摘      要：The effects of alloying elements(Co,Cr,Mo,W,Al,Ti,and Ta)on the oxidation resistance of Ni-(0-15)Co-(8-15)Cr-(0-5)Mo-(0-10)W-(3-8)Al-(0-5)Ti-(0-10)Ta-0.1 C-0.01 B alloys were *** sample compositions were designed by the Box-Behnken method of design of experiments(DOE).The alloying elements show complicated effects on the mass gain due to oxidation,depending on the alloy *** reduces the mass gain *** other elements except Al do not appear to exert a strong effect on the oxidation rate on average,but their influences are shown clearly in the alloys with a low Al ***,W,and Ta reduce the oxidation rate,while Cr,Mo,and Ti promote *** is the most effective element in reducing the oxidation rate of the alloy with a low Al *** is confirmed that a continuous Al2O3 layer is essentially required for high oxidation *** oxide scale of easily oxidized alloys has various oxides such as NiCr2O4,NiAl2O4,NiO,Cr2O3,CrTaO4,and TiO2.