Effect of Ni content on the microstructure and mechanical properties of weld metal with both-side submerged arc welding technique

Wang, Z.Q.; Wang, Xiaolei; Nan, Y.R.; Chen, Shang; Wang, X.M.; Liu, K.; Chen, Bin

doi:10.1016/j.matchar.2018.01.039

Cited by 40 publications

(15 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can be seen in Figure 5b that the weld metal of specimen WM-1Ni (using welding wire 1%Ni) consisted mainly of acicular ferrite. Nickel contributes to stabilize the austenite grains and decreased the temperature of ferrite transformation, hence promotes acicular ferrite, while the formation of side plate ferrite and grain boundary ferrite were suppressed significantly [12]. Acicular ferrite contributes to improving lowtemperature impact toughness.…”

Section: Fig 4 Metallographic Photograph Of An Sm570-tmc Base Metalmentioning

confidence: 99%

“…The impact toughness of the steel weld in fusion welding was directly proportional to the nickel content in the weld metal [7,11]. Mechanical strength and impact toughness of weld metal are improved by increasing nickel percentage due to this element contributed to the presence of acicular ferrite [11,12,13]. Nickel offers benefit as an alloying element to produce high strength steels.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Nickel on the Microstructure, Hardness and Impact Toughness of SM570-TMC Weld Metals

2019

View full text Add to dashboard Cite

SM570-TMC steel was applied in the various fields of steel construction where higher strength is required than conventional mild steel. This steel is commonly fabricated by fusion welding where flux-cored arc welding (FCAW) is preferred due to efficiency consideration. In this study, 14 mm thickness of SM570-TMC steel was butt weld by FCAW using three electrode wires with different nickel content (0% Ni, 1% Ni, 1.5% Ni). The microstructure of weldments was studied using an optical microscope. The hardness distribution tests were performed in the heat affected zone, parent metal and weld metal. And impact toughness of weld metals were measured at temperatures of 25 °C, 0 °C and -20 °C. The results show the steel plate welded using welding wire containing 1% Ni provides more superior impact toughness in the weld metal than welding wire 0% Ni, while the impact toughness of the sample which welded using welding wire containing 1.5% tend to decrease. Nickel element which deposited to weld metal by using welding wires containing 1% Ni has improved the impact toughness, but 1.5% Ni may too high which deteriorate impact toughness.

show abstract

Section: Fig 4 Metallographic Photograph Of An Sm570-tmc Base Metalmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Nickel on the Microstructure, Hardness and Impact Toughness of SM570-TMC Weld Metals

2019

View full text Add to dashboard Cite

show abstract

“…According to the relationship of pole figure in Fig. 9g, h , the parallel K-S relationship was also observed between the martensite and γ-Fe in the transition layer [ 27 , 30 ]. It meant that there was a parallel relationship between the prior γ-Fe of martensite and γ-Fe in the transition layer was observed.…”

Section: Resultsmentioning

confidence: 99%

Microstructure and interfacial metallurgical bonding of 1Cr17Ni2/carbon steel extreme high-speed laser cladding coating

Ding

Wang

et al. 2021

Adv Compos Hybrid Mater

View full text Add to dashboard Cite

“…In addition, PWHT did not promote any significant changes (<4%) to the tensile strength (Table 3). The weld metal presented a refined microstructure composed of acicular ferrite (AF), primary ferrite (PF) and ferrite with a second phase, as expected for 700 MPa class steels [53][54][55][56][57][58][59][60][61][62][63][64] . This microstructure provided Charpy-V results much greater than the minimum required 45 , both in the as welded and heat treated conditions, as shown in Figure 7.…”

Section: Mechanical Properties and Microstructural Characterizationmentioning

confidence: 99%

Investigation into the Impact Toughness of API 5L X80 Steel Weldments and its Relationship with Safe Welding Procedures

et al. 2020

View full text Add to dashboard Cite

API 5L X80 steels are widely used in welded pipes in the petroleum industry. However, microstructural changes in the heat affected zone are a concern when welding such pipes due to the potential formation of regions with low toughness. Despite all the research concerning mechanical properties of welded joints, the acceptance criteria for the qualification of welding procedures are still limited. Welded joints do not always guarantee the safe operation of industrial equipment, because the current Standards adopted are not able to evaluate the properties at some critical regions of the welded joint. This work studied the characteristics of a girth welded joint and showed evidences of low toughness at 0.5 mm from the fusion line due to the micro-phases necklacing the prior austenite grain boundaries. As this feature is not considered by the current Standards for approval of welding procedures, this work proposes an alternative approach to improve the safety of welded structures.

show abstract

Effect of Ni content on the microstructure and mechanical properties of weld metal with both-side submerged arc welding technique

Cited by 40 publications

References 18 publications

Effect of Nickel on the Microstructure, Hardness and Impact Toughness of SM570-TMC Weld Metals

Effect of Nickel on the Microstructure, Hardness and Impact Toughness of SM570-TMC Weld Metals

Microstructure and interfacial metallurgical bonding of 1Cr17Ni2/carbon steel extreme high-speed laser cladding coating

Investigation into the Impact Toughness of API 5L X80 Steel Weldments and its Relationship with Safe Welding Procedures

Contact Info

Product

Resources

About