NSTL国家科技图书文献中心

1. The effects of hot isostatic pressing temperature and subsequent heat treatment on the microstructure and tensile properties of laser powder bed fused IN718 nickel-based superalloy NSTL国家科技图书文献中心

Yin, Junwei | Ma, Dangshen ... - 《Journal of Alloys and Compounds》 - 2025,1020 - 179407～ - 共16页

摘要：Post-processing in additive manufacturing, particularly in laser powder bed fusion (LPBF), is essential for optimizing the microstructure and achieving superior properties in nickel-based superalloys....

关键词： Laser powder bed melting | IN718 superalloy | Hot isostatic pressing | Heat treatment | Microstructure | Mechanical properties

2. Effect of nitrogen substituting carbon on high-temperature mechanical properties and wear performance of Cr-Mo-V hot-working die steel

Gu, Jinbo | Yin, Junwei ... - 《Journal of Materials Research and Technology》 - 2025,34 - 511～522 - 共12页

摘要：The effect of nitrogen substituting carbon on the high-temperature mechanical properties and wear performance of Cr-Mo-V hot-working die steel (HWDS) at 500-600 degrees C was investigated. The results...

关键词： Hot-working die steel | Nitrogen substituting carbon | High-temperature wear performance | Oxidative wear | RESISTANCE | MICROSTRUCTURE | STABILITY | OXIDATION | FRICTION | HARDNESS...

3. Evolution of Microstructure and Mechanical Properties of Ultra-High-Strength Heat-Resistant Bearing Steel During Long-Term Aging at 500 °C

Guo, Chuncheng | Chi, Hongxiao ... - 《materials》 - 2025,18(3) - 共16页

摘要：In this study, various testing methods, including X-ray diffraction (XRD), scanning electron microscopy (SEM), Electron Backscatter Diffraction (EBSD), and high-resolution transmission electron micros...

关键词： ultra-high-strength heat-resistant bearing steel | long-term aging | microstructural evolution | mechanical properties | YIELD STRENGTH | TOUGHNESS | BEHAVIOR | SUBSTRUCTURE

4. Effect of particle size on the microstructure evolution and microsegregation behavior of rapidly solidified high-carbon martensitic stainless steel powder

Yin, Junwei | Ma, Dangshen ... - 《Journal of Materials Research and Technology》 - 2025,36 - 3277～3288 - 共12页

摘要：The size-dependent microstructural evolution and microsegregation behavior of gas-atomized high-carbon martensitic stainless steel M390 alloy powders were systematically investigated. The solidificati...

关键词： High-carbon martensitic stainless steel | Gas atomization | Powder particle size | Microstructure | Microsegregation

5. Fracture Mechanism of H13 Steel During Tensile Testing Based on In Situ EBSD

Li, Yunling | Ma, Dangshen ... - 《metals》 - 2025,15(2) - 共18页

摘要：This paper employs in situ Electron Backscatter Diffraction (EBSD) tensile technology to thoroughly consider the evolution of microstructure, grain size, grain boundary characteristics, orientation di...

关键词： H13 | melting process | fracture mechanism | carbide | inclusion | in situ tensile | in situ EBSD | LATH MARTENSITE | DEFORMATION-BEHAVIOR | CRYSTALLOGRAPHY...

6. Influence of Microstructure on the Mechanical Properties and Polishing Performance of Large Prehardened Plastic Mold Steel Blocks

Chi, Hongxiao | Liu, Jihao ... - 《metals》 - 2024,14(4) - 共13页

摘要：The microstructures throughout a 696 x 1360 mm cross-section of an ISO 1.2738 prehardened steel block for a plastic mold were characterized via optical and electron microscopy and electron backscatter...

关键词： prehardened plastic mold steel | microstructure | mechanical properties | polishing performance | CR | SEGREGATION | TOUGHNESS | BEHAVIOR | VANADIUM | BAINITE

7. Effect of N on the Microstructure and Wear Resistance of 4Cr13 Corrosion-Resistant Plastic Mold Steel

Fan, Yi | Zhou, Jian ... - 《materials》 - 2024,17(2) - 共14页

摘要：The effect of N content on the microstructure and wear resistance of 4Cr13 corrosion-resistant plastic mold steel were investigated by scanning electron microscopy, transmission electron microscopy, X...

关键词： corrosion-resistant plastic mold steel | Cr2N | wear resistance | wear mechanism | MECHANICAL-PROPERTIES | STAINLESS-STEELS | NITROGEN | BEHAVIOR | HARDNESS

8. The effect of tempering temperature on microstructure and corrosion resistance of M390 powder metallurgical martensitic stainless steel

Yin, Junwei | Gu, Jinbo ... - 《Heliyon》 - 2024,10(16) - 共14页

摘要：The corrosion resistance of M390 powder metallurgical martensitic stainless steel with different tempering temperatures was investigated by potentiodynamic polarization measurements, salt spray tests,...

关键词： Powder metallurgical alloy | M390 martensitic stainless steel | Tempering temperature | Corrosion resistance | Undissolved M 7 C 3 carbides | INTERGRANULAR CORROSION | MECHANICAL-PROPERTIES | ELECTROCHEMICAL-BEHAVIOR | EVOLUTION | S390

9. A Study on the Liquid Helium Temperature Tensile Property of Fe-21Cr-15Ni-5Mn-2Mo Austenitic Stainless Steel after Solution Treatment

Zhang, Mengxing | Wang, Changjun ... - 《materials》 - 2024,17(18) - 共12页

摘要：A novel non-magnetic Fe-21Cr-15Ni-5Mn-2Mo austenitic stainless steel with high strength and plasticity has been developed. The microstructure and liquid helium temperature (4.2 K) tensile properties o...

关键词： non-magnetic austenitic stainless steel | solution treatment | microstructure | 4.2 K tensile property | deformation twins | GRAIN-SIZE | Z-PHASE | JJ1

10. Discussion of the Segregation and Low Hardness of Large-Diameter M3 High-Speed Steel Produced by Spray Forming

Liu, Jihao | Chi, Hongxiao ... - 《materials》 - 2023,16(2) - 共16页

摘要：As an advanced near-net-shape processing method in which directly preformed, semi-finished products are created from liquid metals, spray forming has become popular in the development and application ...

关键词： spray-formed large-diameter high-speed steel | segregation | low hardness | solidification model | transformation of microstructure | M2C CARBIDE DECOMPOSITION | AS-CAST | FRACTURE PROPERTIES | ALLOYING ELEMENTS | SOLIDIFICATION...