Effects of TiC addition on microstructure, microhardness and wear resistance of 18Ni300 maraging steel by direct laser deposition

Hu, Jipeng; Zhu, Hongmei; Zhang, Jianwen; Ouyang, Mengna; Qiu, Changjun; Duan, Ji’an

doi:10.1016/j.jmatprotec.2021.117213

Cited by 40 publications

(13 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The microstructure of the deposited materials in the current study shows dendritic-cellular morphologies, Figure 10 c,d and Figure 11 a,b, these observations reveal that preheating has affected the interspacing in cells embedding martensite laths. That is consistent with similar studies [ 34 ].…”

Section: Resultssupporting

confidence: 94%

“…Therefore, the performance of successive depositions smoothened the hardness evolutions, the hardness increased by strong dilutions in preheated single-layered depositions. These hardness values obtained in the current study are similar to other studies [ 34 ]; however, processing conditions and substrate can lead to differences. Successive deposition production, performed in the current study, acted as tempering HAZ, which can be achieved by the application of preheating as well.…”

Section: Resultssupporting

confidence: 90%

“…These values are not as big as the size of intercellular spacing reported by other authors due to the processing conditions such as the energy of deposition, overlapping, etc. [ 29 , 34 ]. Regarding the microstructure illustrated in Figure 10 d, it is composed of three distinct layers as seen in Figure 2 d, the microstructure presents three different contrasts influenced by the dilution effect and the variation of concentrations in the chemical composition of the consecutive layers, as presented by linear analysis in Figure 3 d.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Laser Deposited 18Ni300 Alloy Powder on 1045 Steel: Effect of Passes and Preheating on Microstructure

et al. 2022

View full text Add to dashboard Cite

The application of maraging steels such as 18Ni300 alloy is noteworthy for mould industries, applying repair purposes through direct energy deposition process. This objective requires microstructural characterizations and the evaluation of mechanical behaviour such as hardness. The state of substrate material, including the heat-affected zone (HAZ) and the interface between the HAZ and deposited layer, is essential, the formation of hard phases and abrupt transitions. Thus, the influence of the number of deposited layers or the pre-heating condition appears noteworthy. In the current study, microscopy observations did not reveal the presence of any crack in the cross-sections of deposited 18Ni300 alloy powder on AISI 1045 sheet steel; however, pores were observed in deposited layers. Besides, microscopic analyses revealed the achievement of a smooth HAZ in the deposited layers composed of three-layered depositions or that received preheating, confirmed by hardness measurements as well. Dilution effect ensured a metallurgical bonding between depositions and substrate, strongly affected by preheating. The HAZ microstructure, mainly martensitic transformation, distribution of chemical composition, epitaxial growth at the interface, and the size of crystals and grains were affected by preheating or the number of layers. Moreover, the heat propagation and/or dissipation across the deposited layers influenced the dendrite morphology and the texture of grains. The preheating condition provoked the formation of cellular/equiaxed dendrites that was highlighted in the three-layered deposition, increase in dendrite interspace growth.

show abstract

Section: Resultssupporting

confidence: 94%

Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Laser Deposited 18Ni300 Alloy Powder on 1045 Steel: Effect of Passes and Preheating on Microstructure

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Thereby, they are encapsulated by the molten liquid [202]. Since the density of 18Ni-300 steel (7.85 g/cm 3 ) is higher than that of the TiC (4.25 g/cm 3 ) [193], the TiC particles will float upward within the molten pool, because of the Marangoni convection effect. The particles then collide and sinter during floating which results in different growth morphologies of the TiC particles [203].…”

Section: Martensitic Matrix Compositesmentioning

confidence: 99%

“…In a study on LPBF-fabricated SiC/18Ni300 SMCs, the increase in yield strength Δσ y was theoretically calculated from the sum of each strengthening contribution (Δσ y = Δσ or +Δσ dis +Δσ LT ) to be 334 MPa, which is slightly above the experimentally determined result of 262 MPa. The possible reason for this difference could be the high austenite content LPBF 18Ni300 [156] 1165 ± 7 12.4 ± 0.1 346 ± 5 HV LPBF AISI420 [114] 495-1050 4-24 LPBF H13 [89] 748-810 HV LPBF 1.2767L [76] ∼1576 ∼5.6 LPBF 3 vol.% SiC/18Ni300 [156] 1611 ± 13 10.1 ± 1.6 354 ± 21 HV LPBF TiC/AISI420 [114] 780-1452 4.73-8.64 472-592 HV LPBF TiN/AISI420 [93] 43.3-56.7 HRC LPBF TiC/H13 [89] 811-858 HV LPBF TiB 2 /H13 [91] 758 ± 64 HV LPBF TiB 2 /H13 + HIP [91] 832 ± 150 HV LPBF 2 wt.% WC/1.2767L [17,149] 1677 ± 125 8.5 ± 0.9 3210 ± 131 650-800 HV LPBF 4 wt.% WC/1.2767L [149] 1710 ± 145 7.1 ± 0.6 3485 ± 164 LPBF 6 wt.% WC/1.2767L [149] 1571 ± 153 3.9 ± 0.8 3051 ± 186 LDED TiC/18Ni300 [193] 400-444 HV LDED TiC/18Ni300 + ST + AT [193] 576 HV LDED 10 wt.% TiC/H13 [110] ∼1380 ∼7.4 LDED 20 wt.% TiC/H13 [110] ∼1550 ∼8.4 LDED 30 wt.% TiC/H13 [110] ∼1610 ∼9.1…”

Section: Martensitic Matrix Compositesmentioning

confidence: 99%

Feedstock preparation, microstructures and mechanical properties for laser-based additive manufacturing of steel matrix composites

Chen,

Kosiba,

Suryanarayana

et al. 2023

International Materials Reviews

View full text Add to dashboard Cite

Laser-based additive manufacturing (LBAM) has shown great potential in the development of new metallic materials, especially in the design and fabrication of metal matrix composites (MMCs). Steel matrix composites (SMCs) as one MMC-type, have been successfully additively manufactured with full density and good performance. This article reviews emerging studies of LBAM-fabricated SMCs, starting from the methods of feedstock preparation including respective merits and challenges. The mechanisms of phase transformation, grain growth and texture development of the steel matrix, as well as the precipitation of reinforcements during rapid solidification inherent to LBAM are demonstrated. Microstructural features of SMCs with different matrix (austenitic, martensitic, duplex and ferritic) and reinforcement types are discussed. The interrelationship between the composition and physical properties of the composite powder, microstructures and mechanical properties of SMCs are disclosed and the involved strengthening mechanisms are discussed. Lastly, conclusions and outlook focusing on emerging trends of LBAM-fabricated SMCs are presented.

show abstract

Effect of Solution Aging Heat Treatment on Tribological Properties of Selective Laser Melted WC/18Ni300 Composite

Teng,

Fan,

Yao

et al. 2024

steel research int.

View full text Add to dashboard Cite

Different contents of WC particle‐reinforced 18Ni300 composites are prepared by selective laser melting method, and the tribological properties are comparatively studied before and after solution aging heat treatment. The results show that a part of WC particles are dissolved, and no obvious pore defects appear. With the increase of WC content, the microstructure gradually transforms from cellular and fine columnar α‐Fe martensite to γ‐Fe austenite. After solution aging heat treatment, the phase is transformed into acicular martensite. The grain size significantly decreases, and the Vickers hardness increases. The grain size decreases and the hardness increases with increasing WC contents. For the as‐built composite, the friction coefficient first decreases and then increases, and the wear rate first increases and then decreases with the increase of WC content. With WC content increasing, the wear rate first decreases and then increases. After heat treatment, the tribological properties are improved. The groove of the specimens before heat treatment is deep with large delaminated craters, and the wear mechanism is dominated by adhesive and abrasive wear. The grooves become shallower, and the adhesive trace becomes lighter after heat treatment. The wear mechanism is mainly adhesive wear and abrasive wear, accompanying with oxidative wear.

show abstract

Effects of TiC addition on microstructure, microhardness and wear resistance of 18Ni300 maraging steel by direct laser deposition

Cited by 40 publications

References 31 publications

Laser Deposited 18Ni300 Alloy Powder on 1045 Steel: Effect of Passes and Preheating on Microstructure

Laser Deposited 18Ni300 Alloy Powder on 1045 Steel: Effect of Passes and Preheating on Microstructure

Feedstock preparation, microstructures and mechanical properties for laser-based additive manufacturing of steel matrix composites

Effect of Solution Aging Heat Treatment on Tribological Properties of Selective Laser Melted WC/18Ni300 Composite

Contact Info

Product

Resources

About