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1. Critical differences in early-stage oxidation of Ni-Cr and Ni-Cr-Mo alloys

   https://doi.org/10.1038/s41529-025-00605-7  

   Orson, Keithen G; Jessup, Devin; Harris, Zachary D; Sadowski, Jerzy T; Reinke, Petra (May 2025, npj Materials Degradation)
2. First-principles calculation of stacking fault energies in Ni2(Cr, Mo)

   https://doi.org/10.1016/j.mtcomm.2023.105447  

   Song, Jie; Fu, Yao (March 2023, Materials Today Communications)
3. Structure-Property Relationships of Differently Heat-Treated Binder Jet Printed Co-Cr-Mo Biomaterial

   https://doi.org/10.1016/j.mtcomm.2023.107716  

   Khademitab, M; Rodriguez_de_Vecchis, P; Staszel, P; Vaicik, M_K; Chmielus, M; Mostafaei, A (November 2023, Materials Today Communications)

   This investigation systematically examines the influence of sintering temperature and aging treatment on the density, microstructure evolution, phase formation, and mechanical properties of a binder jet printed Co-Cr-Mo biomedical alloy. Sintering at 1380 °C for 2 h yielded a near-fully dense part (99.1%) with favorable mechanical properties (up to 325 HV0.1 hardness and up to 693 MPa ultimate tensile strength). The grain size remained unchanged after aging at 800 °C for 24 h (89 ± 21 µm). Aging resulted in increased microhardness and tensile strength due to phase formation (Cr23C6, CrMo, and ε phase), but a significant decrease in ductility. Consequently, the sintered and aged specimen exhibited higher hardness (522 HV0.1), yield strength (641 MPa), and ultimate tensile strength (854 MPa) compared to cast Co-Cr-Mo alloy. Biocompatibility testing with fibroblasts showed a cell viability of 95 ± 2%, indicating that binder jet printing did not affect the biocompatibility of the Co-Cr-Mo alloy. Exemplary printed parts including hip-joint, partial denture, and small-scale knee joint were successfully demonstrated. This study highlights the comparable properties of binder jet Co-Cr-Mo alloy to the cast alloy, affirming its potential for biomedical applications. 

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4. Structural defects in compounds $\mathrm{Zn}X\mathrm{Sb}$ $(X=\mathrm{Cr}, \mathrm{Mn}, \mathrm{Fe})$ : Origin of disorder and its relationship with electronic properties

   https://doi.org/10.1103/PhysRevMaterials.6.063602  

   Ciesielski, Kamil; Gomes, Lídia C.; Rome, Grace A.; Bensen, Erik A.; Adamczyk, Jesse M.; Kaczorowski, Dariusz; Ertekin, Elif; Toberer, Eric S. (June 2022, Physical Review Materials)
5. Microstructures and Properties of the Low-Density Al15Zr40Ti28Nb12M(Cr, Mo, Si)5 High-Entropy Alloys

   https://doi.org/10.3390/met12030496  

   Li, Yasong; Liaw, Peter K.; Zhang, Yong (March 2022, Metals)

   Low-density materials show promising prospects for industrial application in engineering, and have remained a research hotspot. The ingots of Al15Zr40Ti28Nb12Cr5, Al15Zr40Ti28Nb12Mo5 and Al15Zr40Ti28Nb12Si5 high-entropy alloys were prepared using an arc melting method. With the addition of the Cr, Mo, and Si, the phase structures of these alloys changed to a dual phase. The Cr and Mo promote the formation of the B2 phase, while the Si promotes the formation of a large amount of the silicides. The compression yield strengths of these alloys are ~1.36 GPa, ~1.27 GPa, and ~1.35 GPa, respectively. The addition of Si and Cr significantly reduces the compression ductility, and the Al15Zr40Ti28Nb12SiMo5 high-entropy alloy exhibits excellent comprehensive mechanical properties. This work investigated the influence of Cr, Mo, and Si on the phase structures and properties of the low-density Al-Zr-Ti-Nb high-entropy alloys, providing theoretical and scientific support for the development of advanced low-density alloys. 

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