Results 11 to 20 of about 2,687 (227)

Sustainable Steel Carburization by Using Snack Packaging Plastic Waste as Carbon Resources

Metals, 2018
In recent years, the research regarding waste conversion to resources technology has attracted growing attention with the continued increase of waste accumulation issues and rapid depletion of natural resources.
Songyan Yin, Ravindra Rajarao, Farshid Pahlevani, Veena Sahajwalla   +3 more
doaj   +3 more sources

Research Progress in Gear Steels for High Temperature Carburization

Teshugang, 2013
The carburizing temperature of common gear steels is 930 °C, as the carburizing temperature of steel increases to 1 000 ~ 1 050 °C the time of carburization process can be remarkably reduced but it easily leads to grain coarsening.
杨延辉, 王毛球, 陈敬超, 董瀚
doaj   +1 more source

Review on the Corrosion Behaviour of Nickel-Based Alloys in Supercritical Carbon Dioxide under High Temperature and Pressure

Crystals, 2023
Supercritical carbon dioxide (S-CO2) has the advantages of amphoteric liquid and gas, which possesses many unique characteristics, such as good compressibility, high density, high solubility, good fluidity and low viscosity.
Yiyao Kang, Xuesong Leng, Lin Zhao, Bowen Bai, Xiaoya Wang, Hongsheng Chen   +5 more
doaj   +1 more source

Development of a magnetic sensor for detection of moderate carburization damages in heat-resistant HP-Nb tubes of steam reforming furnaces

Journal of Materials Research and Technology, 2018
Although carburization is not a typical occurrence in steam reforming furnaces, this localized damage can occur and its detection is an important issue.
Juan E.C. Lopez, Mónica P. Arenas, Clara J. Pacheco, Fábio S. Queiroz, Carlos B. Eckstein, Laudemiro Nogueira, Luiz H. de Almeida, João M.A. Rebello, Gabriela R. Pereira   +8 more
doaj   +1 more source

Preparation and recovery of iron carbide from pyrite cinder using carburization-magnetic separation technology [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2018
A new technique with carburization followed by magnetic separation is presented for the preparation of high-grade iron carbide from pyrite cinder to promote the high value-added utilization of pyrite cinder.
Chen D., Gou H., Lv Y., Li P., Yan B., Xu J.   +5 more
doaj   +1 more source

Precipitation Criterion for Inhibiting Austenite Grain Coarsening during Carburization of Al-Containing 20Cr Gear Steels

Metals, 2021
AlN precipitates are frequently adopted to pin the austenite grain boundaries for the high-temperature carburization of special gear steels. For these steels, the grain coarsening criterion in the carburizing process is required when encountering the ...
Huasong Liu, Yannan Dong, Hongguang Zheng, Xiangchun Liu, Peng Lan, Haiyan Tang, Jiaquan Zhang   +6 more
doaj   +1 more source

Effect of Carburization Parameters on Hardness of Carburized Steel Using MOORA Approach

Al-Khawarizmi Engineering Journal, 2018
In this research, (MOORA) approach based– Taguchi design was used to convert the multi-performance problem into a single-performance problem for nine experiments which built (Taguchi (L9) orthogonal array) for carburization operation.
Abbas Khammas Hussein, Laith Kais Abbas, Asraa Kareem Hameed   +2 more
doaj   +1 more source

INVESTIGATION CORROSION AND MECHANICAL PROPERTIES OF CARBURIZED LOW CARBON STEEL

Journal of Engineering and Sustainable Development, 2018
In this research, Taguchi method is used (S/N) ratio for measuring the variations in experimental design. Taguchi designs used in converting the multi-performance problem into a single-performance problem for experiments which will are in building ...
Abbas Khammas Hussein, Laith Kais Abbas, Asraa Kareem Hameed   +2 more
doaj   +1 more source

Mechanism of M23C6 → M7C3 carbides reaction of Cr35Ni45Nb type alloy during carburization

Materials Research Express, 2021
The carbide transformation of Cr35Ni45Nb type alloy during service has been investigated in the present work. The primary carbide of the as-cast Cr35Ni45Nb type alloy is M _7 C _3 (M is mainly Cr element) and NbC, which transformed into M _23 C _6 type ...
Jingfeng Guo, Tieshan Cao, Congqian Cheng, Jie Zhao   +3 more
doaj   +1 more source

Phase-field simulation of abnormal grain growth during carburization in Nb-added steel [PDF]

, 2020
Abnormal grain growth of austenite phase often takes place during carburization of steels, originating from carbon concentration dependence of pinning pressure of fine precipitates, the size of which is typically a few orders of magnitude smaller than ...
Kinoshita, Takahisa, Ohno, Munekazu
core   +1 more source