Effect of tellurium on the microstructure and mechanical properties of Fe-14Cr oxide-dispersion-strengthened steels produced by additive manufacturing

被引：24
作者：
Arkhurst, Barton Mensah [1 ]
Bae, Jee Hwan [2 ]
Na, Min Young [2 ]
Chang, Hye Jung [2 ]
Kim, Hyun Gil [3 ]
Kim, Il Hyun [3 ]
Ryu, Ho Jin [4 ]
Kim, Jeoung Han [5 ]
机构：
[1] Univ New South Wales Sydney, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia
[2] Korea Inst Sci & Technol, Adv Anal Ctr, Seoul, South Korea
[3] Korea Atom Energy Res Inst, LWR Fuel Technol Div, Daejeon, South Korea
[4] Korea Adv Inst Sci & Technol, Dept Nucl & Quantum Engn, Daejeon, South Korea
[5] Hanbat Natl Univ, Dept Mat Sci & Engn, Daejeon, South Korea
来源：
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2021年 / 95卷
基金：
新加坡国家研究基金会;
关键词：
Additive manufacturing; Directed energy deposition; Oxide-dispersion-strengthened steel; Nanoparticle; Tellurium; FERRITIC STEELS; TENSILE PROPERTIES; LASER DEPOSITION; PART I; EVOLUTION; ALLOY; TEMPERATURE; BEHAVIOR; MACHINABILITY; FABRICATION;
D O I：
10.1016/j.jmst.2021.03.068
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Conventionally, Te has primarily been used to improve the machinability of steel and its alloys. In this work, Te was used to refine the grains of an oxide-dispersion-strengthened (ODS) steel produced by additive manufacturing (AM) with fixed processing parameters. Addition of Te to the raw powder produced an ODS steel with a fine-grained microstructure, in contrast to the ODS steel manufactured without Te. Moreover, the addition of Te resulted in superior yield strength and ultimate tensile strength, which was attributed to the combined effects of grain refinement and the finer nanoparticles (NPs) composed of Terich composite NPs and Cr-rich NPs. For the first time, the AM technique was used to obtain grain and nanoparticle sizes of similar to 3.4 mu m and 6 nm, respectively, from the Te-added ODS steel (C) 2021 Published by Elsevier Ltd on behalf of Chinese Society for Metals.
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收藏
页码：114 / 126
页数：13
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