Precipitates in coarse-grained heat-affected zone of Ni-based 718 superalloy produced by tungsten inert gas welding

Ye, Xin; Hua, Xueming; Wu, Yixiong; Song-nian, Lou

doi:10.1016/j.jmatprotec.2014.10.021

Cited by 22 publications

(2 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The formation of Laves phase depends on the segregation of Nb element [15]. The Nb and Mo elements concentrate in the interdendritic space, which corresponds to the Laves phase distribution.…”

Section: Resultsmentioning

confidence: 99%

Combined effect and mechanism of thermal behaviour and flow characteristic on microstructure and mechanical property of oscillation laser-welded of IN718

Yan

Meng

Chen

et al. 2022

Science and Technology of Welding and Joining

View full text Add to dashboard Cite

An oscillation laser beam was conducted to enhance the mechanical property of Inconel 718 joints. The dynamic behaviours of molten pool on the microstructure and mechanical property of joints were investigated. The results showed that the improvement of Laves phase and the tensile property depended on the flow and thermal behaviours of molten pool. Compared with conventional laser welding, the maximum flow velocity on the surface of molten pool increased by 375.5%(150 Hz), which indicated the dendrites received greater bending stress to break more easily, resulting in the homogenisation of element. In addition, the oscillation laser beam decreased the temperature gradient from 218.5°C/mm to 73°C/mm, and the cooling rate of 150 Hz in the centre and edge of molten pool increased by 64.4% and 111.9%, which hindered the segregation phenomenon during the element diffusion to restrain the formation of Laves phase in the eutectic reaction.

show abstract

Section: Resultsmentioning

confidence: 99%

Combined effect and mechanism of thermal behaviour and flow characteristic on microstructure and mechanical property of oscillation laser-welded of IN718

Yan

Meng

Chen

et al. 2022

Science and Technology of Welding and Joining

View full text Add to dashboard Cite

show abstract

“…In some dissimilar welding studies, such as steel-aluminum welding [64][65][66], IMCs are detrimental to welding performance and are always a cause for concern due to their brittle nature. Of course, the controlled precipitation of IMCs, carbides, oxides, and other hard phases can increase strength, creep resistance, and other mechanical properties, but this is typically performed either using special heat treatment or externally introducing the hard phase into the base metal using welding [67][68][69][70]. In Adomako et al, IMCs were not formed in the joint between CrMnFeCoNi and duplex stainless steel; however, CrMn oxides were shown on the HEA side of the HEA, but not the duplex stainless steel side [63].…”

Section: Dissimilar Weldingmentioning

confidence: 99%

Novel Frontiers in High-Entropy Alloys

Bridges,

Fieser,

Santiago

et al. 2023

Metals

View full text Add to dashboard Cite

There is little doubt that there is significant potential for high-entropy alloys (HEAs) in cryogenic and aerospace applications. However, given the immense design space for HEAs, there is much more to be explored. This review will focus on four areas of application for HEAs that receive less attention. These focus areas include joining technologies, HEA nanomaterial synthesis, catalysis, and marine applications. The performance of HEAs as a filler metal for welding and brazing as well as their performance as a welded/brazed base metal will be discussed. Various methods for synthesizing HEA nanomaterials are reviewed with specifically highlighted applications in catalysis and energy storage. HEA catalysts, in particular, will be discussed in detail regarding their effectiveness, selectiveness, and stability. Marine applications are explored given the inherent corrosion resistance of HEAs as well as superior antifouling properties that make HEAs an intriguing marine-ready material.

show abstract

Joining phenomena and tensile strength of joint between Ni-based superalloy and heat-resistant steel by friction welding

Kimura

Nakashima

Kusaka

et al. 2019

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Precipitates in coarse-grained heat-affected zone of Ni-based 718 superalloy produced by tungsten inert gas welding

Cited by 22 publications

References 16 publications

Combined effect and mechanism of thermal behaviour and flow characteristic on microstructure and mechanical property of oscillation laser-welded of IN718

Combined effect and mechanism of thermal behaviour and flow characteristic on microstructure and mechanical property of oscillation laser-welded of IN718

Novel Frontiers in High-Entropy Alloys

Joining phenomena and tensile strength of joint between Ni-based superalloy and heat-resistant steel by friction welding

Contact Info

Product

Resources

About