• Complex
  • Title
  • Keyword
  • Abstract
  • Scholars
  • Journal
  • ISSN
  • Conference
成果搜索

author:

Zhao, Wei (Zhao, Wei.) [1] | Xiang, Hongliang (Xiang, Hongliang.) [2] (Scholars:向红亮) | Zhan, Xianming (Zhan, Xianming.) [3] | Zhang, Xiangkai (Zhang, Xiangkai.) [4] (Scholars:张祥凯) | Wu, Chaochao (Wu, Chaochao.) [5] (Scholars:吴潮潮)

Indexed by:

EI Scopus SCIE

Abstract:

Duplex stainless steels (DSSs) produced via laser powder bed fusion (LPBF) exhibit excellent strength and plasticity compatibility. In this study, in -situ electron backscatter diffraction (EBSD) was employed to investigate the coordinated deformation behavior of 2205 DSSs fabricated by LPBF with heat treatment at 1050 degrees C for 1 h, including strain distribution behavior and mechanism of stress concentration release. The results indicate that the initial deformation of LPBF samples is primarily concentrated in the austenite phase. As the tension progresses, austenite gradually transitioned to hard orientation, and the strain in austenite can pass through the phase boundary into the ferrite grain. To coordinate the deformation, ferrite transitioned to soft orientation through rotation towards the slip systems of {110}<- 111> and {1-21}<111>. The stress concentration in ferrite can be alleviated by forming dislocation walls and cells through planar and cross-slip dislocations. In contrast, the stress concentration in austenite can be released by stacking faults and deformation twins. Compared to the as -cast samples, the yield strength of LPBF samples is improved from 472 +/- 13 to 641 +/- 17 MPa due to fine grain strengthening and dislocation strengthening. This study offers guidance for further enhancing the strength and plasticity of materials prepared by LPBF.

Keyword:

Deformation behavior Duplex stainless steel Laser powder bed fusion Microstructure evolution

Community:

  • [ 1 ] [Zhao, Wei]Fuzhou Univ, Sch Mech Engn & Automat, 2 Xueyuan Rd, Fuzhou 350108, Peoples R China
  • [ 2 ] [Xiang, Hongliang]Fuzhou Univ, Sch Mech Engn & Automat, 2 Xueyuan Rd, Fuzhou 350108, Peoples R China
  • [ 3 ] [Zhang, Xiangkai]Fuzhou Univ, Sch Mech Engn & Automat, 2 Xueyuan Rd, Fuzhou 350108, Peoples R China
  • [ 4 ] [Wu, Chaochao]Fuzhou Univ, Sch Mech Engn & Automat, 2 Xueyuan Rd, Fuzhou 350108, Peoples R China
  • [ 5 ] [Zhao, Wei]Fuzhou Univ, Sch Zhicheng, Fuzhou 350108, Peoples R China
  • [ 6 ] [Zhan, Xianming]Fuzhou Univ, Sch Zhicheng, Fuzhou 350108, Peoples R China
  • [ 7 ] [Xiang, Hongliang]Fuzhou Univ, Mech & Elect Engn Practice Ctr, Fuzhou 350108, Peoples R China

Reprint 's Address:

  • [Xiang, Hongliang]Fuzhou Univ, Sch Mech Engn & Automat, 2 Xueyuan Rd, Fuzhou 350108, Peoples R China;;[Zhang, Xiangkai]Fuzhou Univ, Sch Mech Engn & Automat, 2 Xueyuan Rd, Fuzhou 350108, Peoples R China;;

Show more details

Related Keywords:

Source :

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

ISSN: 0921-5093

Year: 2024

Volume: 901

6 . 1 0 0

JCR@2023

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 2

SCOPUS Cited Count: 3

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

Online/Total:914/10257018
Address:FZU Library(No.2 Xuyuan Road, Fuzhou, Fujian, PRC Post Code:350116) Contact Us:0591-22865326
Copyright:FZU Library Technical Support:Beijing Aegean Software Co., Ltd. 闽ICP备05005463号-1