Effect of Annealing Temperature on the Microstructure and Mechanical Properties of High-Pressure Torsion-Produced 316LN Stainless Steel

Dong, Yuanyuan; Zhang, Zhe; Yang, Zhihai; Zheng, Ruixiao; Chen, Xu

doi:10.3390/ma15010181

Cited by 8 publications

(3 citation statements)

References 44 publications

(76 reference statements)

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“…The HBW hardness and Charpy impact energy change in the opposite direction: as the aging time is extended, the HBW value continues to rise, and the rise is greater in the early aging period. As the aging time is extended, the rise of the HBW value tends to slow [36]. After 300 h of aging, the HBW value is essentially stable.…”

Section: Charpy Impact and Hbw Hardness Testmentioning

confidence: 98%

Effect of Microstructure on Mechanical Properties of 316 LN Austenitic Stainless Steel

2022

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The microstructure development of 316 LN austenitic stainless steel (316 LNSS) during the aging process is investigated in this article. The thermal aging processes were conducted at 750 °C with different periods ranging from 50 to 500 h. The metallographic results show that the coherent and incoherent twins were present in the original 316 LNSS grains, but dwindled as the aging period increased. After 50 h of aging, many fine, dispersed particles precipitated from the matrix, which were identified as M23C6 by energy dispersive spectrometer (EDS) and transmission electron microscopy (TEM). Additionally, the impact toughness and Brinell hardness (HBW) changed during the aging, which was closely related to the effects of dispersion strengthening and solution strengthening. A negatively linear relationship between Brinell hardness and Charpy impact energy was established, which could be utilized to predict the degree of thermal embrittlement.

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Section: Charpy Impact and Hbw Hardness Testmentioning

confidence: 98%

Effect of Microstructure on Mechanical Properties of 316 LN Austenitic Stainless Steel

2022

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“…Hot-rolled materials were placed in an oven (Beijing JinYeHong Metallurgical Mechanical Equipment Corp Ltd., Beijing, China), under neutral atmosphere, for 30 min at 500 • C, according to Y. Dong et al [27], and then immediately hot-rolled (Cavallin 130 mm Rolling Mill (Beijing JinYeHong Metallurgical Mechanical Equipment Corp Ltd., Beijing, China) at a speed close to 10 −2 m/s. The temperature of the roller close to 100 • C was measured by thermocouple (Prosensor, Amanvillers, France) just prior to hot rolling.…”

Section: Sintering and Hot Rollingmentioning

confidence: 99%

Study on Debinding and Sintering Conditions in Extrusion-Based Additive Manufacturing of 316L and 316L + Cu

Silvain,

Gifford,

Fourcade

et al. 2023

Metals

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This study investigates the use of a methylcellulose binder in extrusion additive manufacturing of 316L as an alternative to common wax-based binders. Various quantities of copper (Cu) powder were also added in the paste composition to attempt to reduce the sintering temperature by promoting persistent liquid phase sintering. Debinding experiments were conducted under different temperatures and dwell times using argon (Ar), Ar/5%H2, and Ar/1%O2 atmospheres. Debinding reduced carbon (C) content to 0.032 wt.% by using a two-step debinding process of Ar/5%H2 and Ar/1%O2 thermal treatments. Using this debinding process, sintering was conducted at 1200 °C under Ar/5%H2 atmosphere with the presence of 0, 10, and 20 vol.% Cu in the paste. Microstructure, mechanical, and corrosion properties were studied. Cu additions allowed the improvement of the densification when sintering at 1200 °C was performed. A 20 vol.% Cu addition yielded 88% relative density after sintering for 10 h, while pure 316L powder sintered under the same conditions had 70%. Mechanical properties were inferior to fully dense stainless steel, but it is not clear if this is due to the Cu additions or insufficient densification.

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“…The surface area, grain size, and texture of the material have been effectively controlled. Furthermore, other methods like ball inert gas condensation, [35], ball milling [36], high-pressure torsion [37], accumulative roll bonding [38], crystallization [39], and electrolytic deposition [40] may also contribute to this field. Sodium borohydride (NaBH4) is a relatively inexpensive hydrogen storage material that is stable at room temperature, which significantly facilitates storage and transportation.…”

mentioning

confidence: 99%

A Review on Hydrogen Storage and Transportation: Progresses and Challenges

Xie,

Jin,

2024

Preprint

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As the global demand for clean and sustainable energy sources intensifies, hydrogen emerges as a promising alternative fuel. The widespread adoption of hydrogen, however, is impeded by the lack of efficient systems for storage and transportation. This review aims to summarize the recent advancements and prevailing challenges within the realm of hydrogen storage and transportation, thereby providing guidance and impetus for future research and practical applications in this domain. Through a systematic selection and analysis of the latest literature, this study highlights the strengths, limitations, and technological progress of various hydrogen storage methods, including compressed gaseous hydrogen, cryogenic liquid hydrogen, organic liquids hydrogen, solid materials hydrogen storage, as well as the feasibility, efficiency, and infrastructure requirements of different transportation modes such as pipelines, road and seaborne transportation. The findings reveal that challenges such as low storage density, high costs, and inadequate infrastructure persist despite progress in high-pressure storage and cryogenic liquefaction. The review also underscores the potential of emerging technologies and innovative concepts, including metal-organic frameworks, nanomaterials, and underground storage, along with the potential synergies with renewable energy integration and hydrogen production facilities. In conclusion, interdisciplinary collaboration, policy support, and ongoing research are essential in harnessing hydrogen’s full potential as a clean energy carrier. This review concludes that research in hydrogen storage and transportation is vital to global energy transformation and climate change mitigation.

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Effect of Annealing Temperature on the Microstructure and Mechanical Properties of High-Pressure Torsion-Produced 316LN Stainless Steel

Cited by 8 publications

References 44 publications

Effect of Microstructure on Mechanical Properties of 316 LN Austenitic Stainless Steel

Effect of Microstructure on Mechanical Properties of 316 LN Austenitic Stainless Steel

Study on Debinding and Sintering Conditions in Extrusion-Based Additive Manufacturing of 316L and 316L + Cu

A Review on Hydrogen Storage and Transportation: Progresses and Challenges

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