An empirical-statistical model for coaxial laser cladding of NiCrAlY powder on Inconel 738 superalloy

Ansari, Mohammad; Razavi, Reza Shoja; Barekat, Masoud

doi:10.1016/j.optlastec.2016.06.014

Cited by 111 publications

(39 citation statements)

References 18 publications

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“…Barekat et al [ 8 ] studied the geometrical characteristics of Co-Cr-Mo powder coating on a γ-TiAl substrate by linear regression analysis. Ansari et al [ 13 ] studied the geometrical characteristics of NiCrAlY powder coating on Inconel 738 superalloy by laser cladding. Rashid et al [ 14 ] analyzed the effect of the geometrical features on clad width, clad thickness, and depth of penetration into the substrate, and reported the dimensions of the heat-affected zone (HAZ).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Geometrical Characteristics and Properties of Laser Cladding 85 wt.% Ti + 15 wt.% TiBCN Powder on 7075 Aluminum Alloy Substrate

Zhang

Bai

et al. 2018

Materials

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Ti/TiBCN composite coatings were prepared on a 7075 aluminum alloy surface by laser cladding. The relation between the main processing parameters (i.e., laser power, scanning speed, and powder feeding rate) and the geometrical characteristics (i.e., height, width, penetration depth, dilution and wetting angle) of single clad tracks is studied by linear regression analysis. The microstructure, micro-hardness and electrochemical corrosion were investigated by scanning electron microscopy, a Vickers micro-hardness machine, and a standard three-electrode cell, respectively. The results showed that all geometrical track characteristics are observed with high values of the correlation coefficient (R > 0.95). In addition, the average hardness value (750 HV0.2) was obtained of the Ti/TiBCN composite coating, and polarization curves indicated that the composite coatings were harder to corrode than the substrate.

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Section: Introductionmentioning

confidence: 99%

Analysis of Geometrical Characteristics and Properties of Laser Cladding 85 wt.% Ti + 15 wt.% TiBCN Powder on 7075 Aluminum Alloy Substrate

Zhang

Bai

et al. 2018

Materials

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“…Regarding studies involving the application of Nd:YAG lasers, Stašić, D. Božić [9] researched the effects of the main laser-cladding process elements on the structure of single tracks of 316L and 316L-NiB alloys. Ansari et al [10] presented the results of the coaxial laser cladding of NiCrAlY powder on Inconel 738 superalloy. Cai et al [11], described the manufacturing of the FeCoCrNiCux alloy using laser cladding.…”

Section: Introductionmentioning

confidence: 99%

“…Xu et al [45] researched the microstructure and mechanical properties of single tracks made of 316L stainless steel using a wave fiber laser and an arc welding machine. Ansari [10] studied the relationships between the process and geometric parameters of single clad tracks made from an Inconel 738 superalloy. Khairallah [46] studied the features of the melt pool using computer simulations, and Panwisawas et al [47] modeled the effects of the process parameters on the microstructural properties of single tracks made of Ti-6Al-4V alloy.…”

Section: Introductionmentioning

confidence: 99%

Single Tracks as a Key Factor in Additive Manufacturing Technology—Analysis of Research Trends and Metal Deposition Behavior

et al. 2020

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In recent years, general studies on Selective Laser Melting (SLM)/Selective Laser Sintering (SLS)/direct metal deposition (DMD) technologies, as well as studies on detailed issues in this area, have been carried out. However, a research gap is observed in investigations into the features of single tracks in the above-mentioned technologies. On the basis of data published in 2016–2019, an approach was adopted for a preliminary quantitative analysis of the knowledge base and also trends observed in the development of new technologies. This study demonstrates the effectiveness of the data mining technique based on the Bayes algorithm for analyzing trends in processes of additive manufacturing and the practical application of the knowledge received using the Bayes algorithm. After the analyses referred to above were completed, single and double layers of a composite material based on the Ni-based alloy and Fe–Al bronze were analyzed under different processing conditions. The effects of laser spot speeds and pitches on microhardness, microstructure, and interlayers’ features were described. So, the innovative approach, namely, the combination of the analysis of the scientific database of the phenomenon under study and the subsequent experimental investigation of its features, is the scientific novelty of the present study.

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“…Most present studies have focused on cladding NiCrAlY coating on superalloys. Ansari et al used coaxial laser cladding technology to clad single‐bead NiCrAlY coating on Inconel738 substrate, and proposed an empirical mathematical model of process parameters and cladding geometric features. Pereira et al prepared two kinds of MCrAlY (M–Ni, Co) coatings on austenitic steel by laser cladding, and proved that NiCoCrAlY has better high temperature oxidation resistance than CoNiCrAlY.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Inconel718–NiCrAlY Composites Prepared by Laser Engineered Net Shaping

et al. 2018

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Near-defect-free block Inconel718-NiCrAlY composites prepared by laser engineered net shaping are investigated in this study. XRD, SEM, and EDS are applied to analyze the phase composition and microstructure characteristics. The mechanical properties are evaluated by microhardness tester and friction-wear tester. The results show that NiAl brittle intermetallic compounds precipitate in the matrix when NiCrAlY content reaches 60% or more. With the increase of NiCrAlY ratio, the distribution of NiAl changes from intergranular precipitation to intragranular precipitation, and the dendrites growth directions become chaotic. The microhardness of composites improves as the NiCrAlY content rises, reaching to 419 HV for 100% NiCrAlY, and solid solution strengthening has better strengthening effect on microhardness than precipitation strengthening. The wear loss has a clear decrease only when 80% or more NiCrAlY is added, with the maximum wear loss drop of 15.66% for 100%NiCrAlY. The wear mechanisms change from the coexistence of adhesive wear and abrasive wear to mainly abrasive wear with micro brittle fractures when NiCrAlY content is high.

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An empirical-statistical model for coaxial laser cladding of NiCrAlY powder on Inconel 738 superalloy

Cited by 111 publications

References 18 publications

Analysis of Geometrical Characteristics and Properties of Laser Cladding 85 wt.% Ti + 15 wt.% TiBCN Powder on 7075 Aluminum Alloy Substrate

Analysis of Geometrical Characteristics and Properties of Laser Cladding 85 wt.% Ti + 15 wt.% TiBCN Powder on 7075 Aluminum Alloy Substrate

Single Tracks as a Key Factor in Additive Manufacturing Technology—Analysis of Research Trends and Metal Deposition Behavior

Microstructure and Mechanical Properties of Inconel718–NiCrAlY Composites Prepared by Laser Engineered Net Shaping

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