PMID- 33207847
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201201
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 13
IP  - 22
DP  - 2020 Nov 16
TI  - Impact on Mechanical Properties and Microstructural Response of Nickel-Based 
      Superalloy GH4169 Subjected to Warm Laser Shock Peening.
LID - 10.3390/ma13225172 [doi]
LID - 5172
AB  - Laser shock peening (LSP), as an innovative surface treatment technology, can 
      effectively improve fatigue life, surface hardness, corrosion resistance, and 
      residual compressive stress. Compared with laser shock peening, warm laser shock 
      peening (WLSP) is a newer surface treatment technology used to improve materials' 
      surface performances, which takes advantage of thermal mechanical effects on 
      stress strengthening and microstructure strengthening, resulting in a more stable 
      distribution of residual compressive stress under the heating and cyclic loading 
      process. In this paper, the microstructure of the GH4169 nickel superalloy 
      processed by WLSP technology with different laser parameters was investigated. 
      The proliferation and tangling of dislocations in GH4169 were observed, and the 
      dislocation density increased after WLSP treatment. The influences of different 
      treatments by LSP and WLSP on the microhardness distribution of the surface and 
      along the cross-sectional depth were investigated. The microstructure evolution 
      of the GH4169 alloy being shocked with WLSP was studied by TEM. The effect of 
      temperature on the stability of the high-temperature microstructure and 
      properties of the GH4169 alloy shocked by WLSP was investigated.
FAU - Lu, Ying
AU  - Lu Y
AD  - Shenyang Institute of Automation, Chinese Academy of Science, Shenyang 110016, 
      China.
AD  - Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of 
      Sciences, Shenyang 110169, China.
FAU - Yang, Yuling
AU  - Yang Y
AD  - College of Science, Northeastern University, Shenyang 110819, China.
FAU - Zhao, Jibin
AU  - Zhao J
AD  - Shenyang Institute of Automation, Chinese Academy of Science, Shenyang 110016, 
      China.
AD  - Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of 
      Sciences, Shenyang 110169, China.
FAU - Yang, Yuqi
AU  - Yang Y
AUID- ORCID: 0000-0002-8377-3708
AD  - Shenyang Institute of Automation, Chinese Academy of Science, Shenyang 110016, 
      China.
AD  - Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of 
      Sciences, Shenyang 110169, China.
FAU - Qiao, Hongchao
AU  - Qiao H
AD  - Shenyang Institute of Automation, Chinese Academy of Science, Shenyang 110016, 
      China.
AD  - Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of 
      Sciences, Shenyang 110169, China.
FAU - Hu, Xianliang
AU  - Hu X
AD  - Shenyang Institute of Automation, Chinese Academy of Science, Shenyang 110016, 
      China.
AD  - Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of 
      Sciences, Shenyang 110169, China.
FAU - Wu, Jiajun
AU  - Wu J
AUID- ORCID: 0000-0003-0099-6680
AD  - Shenyang Institute of Automation, Chinese Academy of Science, Shenyang 110016, 
      China.
AD  - Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of 
      Sciences, Shenyang 110169, China.
FAU - Sun, Boyu
AU  - Sun B
AD  - Shenyang Institute of Automation, Chinese Academy of Science, Shenyang 110016, 
      China.
AD  - Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of 
      Sciences, Shenyang 110169, China.
LA  - eng
GR  - No. U1608259/NSFC-Liaoning Province united foundation/
PT  - Journal Article
DEP - 20201116
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC7698307
OTO - NOTNLM
OT  - GH4169 nickel-based superalloy
OT  - microstructure
OT  - residual stress
OT  - warm laser shock peening (WLSP)
COIS- The authors declare that there are no competing interests regarding the 
      publication of this paper.
EDAT- 2020/11/20 06:00
MHDA- 2020/11/20 06:01
PMCR- 2020/11/16
CRDT- 2020/11/19 01:02
PHST- 2020/09/08 00:00 [received]
PHST- 2020/11/03 00:00 [revised]
PHST- 2020/11/05 00:00 [accepted]
PHST- 2020/11/19 01:02 [entrez]
PHST- 2020/11/20 06:00 [pubmed]
PHST- 2020/11/20 06:01 [medline]
PHST- 2020/11/16 00:00 [pmc-release]
AID - ma13225172 [pii]
AID - materials-13-05172 [pii]
AID - 10.3390/ma13225172 [doi]
PST - epublish
SO  - Materials (Basel). 2020 Nov 16;13(22):5172. doi: 10.3390/ma13225172.