Effect of induction heat treatment on microstructure, mechanical and corrosion properties of stainless steel 308 L fabricated using wire arc additive manufacturing

被引:2
|
作者
Sun, Yangfan [1 ,4 ]
Li, Xianglong [1 ,2 ]
Xu, Lai [1 ,2 ]
Shen, Hongyao [1 ,2 ]
Liu, Yougen [3 ]
机构
[1] Zhejiang Univ, Coll Mech Engn, State Key Lab Fluid Power & Mechatron Syst, Hangzhou 310027, Peoples R China
[2] Zhejiang Univ, Coll Mech Engn, Key Lab 3D Printing Proc & Equipment Zhejiang Prov, Hangzhou 310027, Peoples R China
[3] Hangzhou Wheeler Gen Machinery Inc Co Ltd, Hangzhou 311100, Peoples R China
[4] Zhejiang Adv CNC Machine Tool Technol Innovat Ctr, Taizhou, Peoples R China
来源
SCIENTIFIC REPORTS | 2024年 / 14卷 / 01期
关键词
Wire arc additive manufacturing (WAAM); Induction heat treatment; Mechanical properties; Corrosion resistance; SHAPED METAL-DEPOSITION; TECHNOLOGIES; COMPONENTS;
D O I
10.1038/s41598-024-75382-5
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Induction solution heat treatment can change the mechanical characteristics and corrosion resistance properties of 308 L manufactured via wire arc additive manufacturing (WAAM). Moreover, compare with traditional heat treatment methods, this method can reduce heat treatment time and achieve in-situ local heat treatment. In this paper, in-situ induction heat treatment at 1100 degrees C for 2, 4, and 6 min were applied on 308 L thin-walled parts produced by WAAM. The result show that ferrite and austenite phase proportions were changed after induction solution heat treatment. Heat treatment at 1100 degrees C effectively reduced the delta-Fe and sigma-Fe content, resulting in a slight decrease in UTS and microhardness, while YS and EL have a certain degree of increase. sigma-Fe exhibits a more pronounced strengthening effect than austenite, albeit at the potential expense of steel's elasticity. At the same time, induction heat treatment alters the ferrite to austenite ratio, which also enhances the anti-corrosion properties of the stainless steel. However, the presence of sigma-Fe will cause a worsening of the corrosion resistance of the steel. In addition, as the heat treatment progresses, the ferrite's microstructure in the deposition direction undergoes a significant transformation, changing from continuous dendrites to a few equiaxed grains.
引用
收藏
页数:12
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