Results 11 to 20 of about 1,143 (249)

Ta2C precipitation after low pressure carburizing of tantalum [PDF]

Materials Chemistry and Physics, 2022
Low pressure carburizing cycles were carried out on tantalum samples. A Ta2C precipitates layer is present underthe TaC and Ta2C surface layers. As the TaC and Ta2C layers, the Ta2C precipitates layer (TPL) grows by carbondiffusion in tantalum matrix.
Dominique Cotton, Philippe Jacquet, Sébastien Faure, Vincent Vignal   +3 more
openaire   +4 more sources

DISTORTION OF 16MnCr5 STEEL PARTS DURING LOW-PRESSURE CARBURIZING

Advances in Science and Technology Research Journal, 2017
One of the many advantages of low pressure carburizing (LPC) is that it can be combined with high-pressure gas quenching. This makes it possible to achieve workpieces with pure metallic surfaces, less distortion hardening, and, above all, it allows a ...
Konrad Dybowski, Rafał Niewiedzielski
openaire   +2 more sources

Mechanism of the Microstructural Evolution of 18Cr2Ni4WA Steel during Vacuum Low-Pressure Carburizing Heat Treatment and Its Effect on Case Hardness. [PDF]

Materials (Basel), 2020
In this study, vacuum low-pressure carburizing heat treatments were carried out on 18Cr2Ni4WA case-carburized alloy steel. The evolution and phase transformation mechanism of the microstructure of the carburized layer during low-temperature tempering and
Wang B, He Y, Liu Y, Tian Y, You J, Wang Z, Wang G.   +6 more
europepmc   +2 more sources

LOW PRESSURE CARBURIZING IN A LARGE-CHAMBER DEVICE FOR HIGH-PERFORMANCE AND PRECISION THERMAL TREATMENT OF PARTS OF MECHANICAL GEAR [PDF]

, 2017
This paper presents the findings of research of a short-pulse low pressure carburizing technology developed for a new large-chamber furnace for high-performance and precision thermal treatment of parts of mechanical gear.
Agnieszka Brewka, Buczek, M., Piotr Kula, Magdalena Buczek, Klimek, L., Leszek Klimek, Kula, P., Emilia Wołowiec-Korecka, Maciej Korecki, Wołowiec-Korecka, E., Korecki, M., Brewka, A.   +11 more
core   +3 more sources

The Effect of the Quenching Method on the Deformations Size of Gear Wheels after Vacuum Carburizing

Archives of Metallurgy and Materials, 2016
This paper presents a comparison of the deformations and residual stresses in gear wheels after vacuum carburizing process with quenching in high-pressure nitrogen and oil. The comparison was made on a medium-sized gear wheels, made of AMS6265 (AISI 9310)
Dybowski K., Sawicki J., Kula P., Januszewicz B., Atraszkiewicz R., Lipa S.   +5 more
doaj   +1 more source

Study on the Process of Vacuum Low Pressure Carburizing and High Pressure Gas Quenching for Carburizing Steels

Journal of Physics: Conference Series, 2020
Abstract The vacuum low pressure carburizing and high pressure gas quenching processes of 20CrMo, 20CrMnTi and 20Cr2Ni4 with acetylene as carburizing medium were investigated. The results show that the carburizing and diffusion time significantly affected the carburizing performance. Carburized with the process of C2H2 flow rate 10L/min,
Huizhen Wang, Yuewen Zhai, Leyu Zhou, Bo Liu, Guojian Hao   +4 more
openaire   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

Tratamentos termoquímicos sequenciais por plasma do aço AISI 1005 [PDF]

, 2015
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2015.Este trabalho apresenta uma nova abordagem sobre o emprego sequencial dos tratamentos
Damin, Keli Vanessa Salvador
core  

Pre-Coated Fe–Ni Film to Promote Low-Pressure Carburizing of 14Cr14Co13Mo4 Steel

, 2019
Case-hardening 14Cr14Co13Mo4 martensitic stainless steel needs to be carburized to improve surface performance. Low-pressure carburization has the benefit of having oxidation-free production and being ecofriendly.
Tingjian Wang, Guodong Hao, Liqin Wang, Xinxin Ma, Zhongyuan Fu, Liuhe Li, Longcheng Yin   +6 more
core   +1 more source

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

Molecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat, Aslihan Kucuk, Omer Erdogan, Samed Ozer, Bensu Kozan, Tugba Cuceli, Erkan Gumus, Evrim Cevik, Ozge Cevik   +8 more
wiley   +1 more source