NDLI: The numerical and experimental evaluations in the weld mushy zone of modern third generation nickel-based superalloys

Content Provider	Springer Nature Link
Author	Naffakh Moosavy, Homam
Copyright Year	2015
Abstract	The goal of the current research is to investigate the weld mushy zone in the newly designed third-generation superalloys numerically and experimentally, in order to predict the weld mushy zone solidification temperature range and size and predict the weldability. The mathematical equations for interpretation of weld mushy zone temperature have been obtained. Also, the equations which calculate the distance of the weld mushy zones are extracted. The equations correlate the retained liquid fraction to the temperature and longitudinal coordination of weld centerline. The calculations indicated that welds containing high amount of Ti and Nb simultaneously display wider weld mushy zone temperature range and size, while welds containing only one of Nb or Ti exhibit shorter weld mushy zone temperature range and size. The mushy zone temperature range of weld containing 5.6 wt.% (Ti + Al), 2.7 wt.% Nb reaches to a maximum of 212 °C. The output of the experimental observations demonstrates an appropriate validity for the mushy zone modelling. According to the numerical and experimental results, the composition ranges of {5.2 ≤ Nb wt. % ≤ 5.6} /{1.7 ≤ (Ti + Al) wt. % ≤ 2.4}, and{0 ≤ Nb wt. % ≤ 0.5} /{9.3 ≤ (Ti + Al) wt. % ≤ 10 } offer the best weldability for the newly designed superalloys.
Starting Page	2003
Ending Page	2016
Page Count	14
File Format	PDF
ISSN	02683768
Journal	The International Journal of Advanced Manufacturing Technology
Volume Number	82
Issue Number	9-12
e-ISSN	14333015
Language	English
Publisher	Springer London
Publisher Date	2015-07-15
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Superalloys Welding Modelling Solidification Industrial and Production Engineering Production Mechanical Engineering Computer-Aided Engineering (CAD, CAE) and Design
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Mechanical Engineering Computer Science Applications Software

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