PMID- 36235884
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20221019
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 14
IP  - 19
DP  - 2022 Sep 21
TI  - The Effect of Welding Defects on the Long-Term Performance of HDPE Pipes.
LID - 10.3390/polym14193936 [doi]
LID - 3936
AB  - High-density polyethylene (HDPE) pipes are the preferred pipes of water systems 
      in nuclear power plants because they are durable, corrosion-free, easy to 
      install, and not subject to fouling. However, their long-term performance can be 
      affected by welding defects. In this paper, the effect of welding defects on the 
      long-term performance of HDPE pipe butt fusion joints was studied using a creep 
      test. A welding defect with a hole or inclusion in the joint was simulated by 
      artificially inserting a copper ball during butt fusion welding. The test results 
      showed that the creep life of the joint decreased with increased defect size. An 
      expression describing the creep life and the defect ratio was obtained according 
      to the test results. In addition, the test results showed that the creep life of 
      the joint without a welding bead was about 50% of that in a joint with a welding 
      bead.
FAU - Lai, Huansheng
AU  - Lai H
AUID- ORCID: 0000-0003-1753-5119
AD  - Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen 
      University, Zhuhai 519082, China.
AD  - School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing 
      211816, China.
FAU - Fan, Dengshuai
AU  - Fan D
AD  - School of Chemical Engineering, Fuzhou University, Fuzhou 350116, China.
FAU - Liu, Kanglin
AU  - Liu K
AD  - School of Chemical Engineering, Fuzhou University, Fuzhou 350116, China.
LA  - eng
PT  - Journal Article
DEP - 20220921
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC9571897
OTO - NOTNLM
OT  - HDPE
OT  - butt fusion joint
OT  - creep life
OT  - welding defect
COIS- The authors declare no conflict of interest.
EDAT- 2022/10/15 06:00
MHDA- 2022/10/15 06:01
PMCR- 2022/09/21
CRDT- 2022/10/14 02:32
PHST- 2022/08/19 00:00 [received]
PHST- 2022/09/14 00:00 [revised]
PHST- 2022/09/14 00:00 [accepted]
PHST- 2022/10/14 02:32 [entrez]
PHST- 2022/10/15 06:00 [pubmed]
PHST- 2022/10/15 06:01 [medline]
PHST- 2022/09/21 00:00 [pmc-release]
AID - polym14193936 [pii]
AID - polymers-14-03936 [pii]
AID - 10.3390/polym14193936 [doi]
PST - epublish
SO  - Polymers (Basel). 2022 Sep 21;14(19):3936. doi: 10.3390/polym14193936.