Results 1 to 10 of about 38,847 (163)

Carburization-induced microstructure evolution and hardening mechanism of 18CrNiMo7-6 steel

Journal of Materials Research and Technology, 2023
The microstructural evolution and hardening mechanism caused by carburizing heat treatment must be determined to improve the in-service functional performance of components used in advanced equipment for aerospace and other industrial applications ...
Gang Wang, Xianggang Sang, Yue Zhang, MingHao Zhao, GuangTao Xu, Zhenlong Peng   +5 more
doaj   +5 more sources

The Effect of Cyclic Heat Treatment on the Microstructure and Mechanical Properties of 18CrNiMo7-6 Gear Steel [PDF]

Materials
To avoid grain coarsening resulting from high-temperature carburizing, the effects of cyclic quenching and tempering on the microstructure and mechanical properties of 18CrNiMo7-6 gear steel were investigated. Three groups of samples were compared, which went through 0/1/3 times of quenching–tempering cycles after initial pseudo-carburizing.
Wenchao Yu, Qingwei Jiang, Yu Wenchao
exaly   +5 more sources

Simulation and Mechanical Properties of Fine-Grained Heat-Affected Zone Microstructure in 18CrNiMo7-6 Steel. [PDF]

Materials (Basel), 2022
Heat-affected zones (HAZs) in real welds are usually quite narrow, and consequently most standard mechanical tests are difficult or even impossible. Therefore, simulated microstructures are often used for mechanical tests. However, the most often used weld thermal cycle simulator produces only a few millimeters wide area of simulated microstructure in ...
Vuherer T, Smaili F, Bjelajac E, Manjgo M, Lojen G.   +4 more
europepmc   +5 more sources

Bending Fretting Fatigue Characteristics of 18CrNiMo7-6 Alloy Steel

Cailiao gongcheng, 2017
A series of bending fretting fatigue tests of 18CrNiMo7-6 alloy steel were carried out, the bending fretting fatigue S-N curve was built up, and an analysis was made on the test results.
SHEN Yan-tuan, PENG Jin-fang, XU Zhi-biao, LIU Jian-hua, CAI Zhen-bing, ZHU Min-hao   +5 more
doaj   +3 more sources

Nanoindentation Properties of 18CrNiMo7-6 Steel after Carburizing and Quenching Determined by Continuous Stiffness Measurement Method

Metals, 2020
In this work, the nanomechanical properties involving the indentation size effect (ISE) and yield strength of a surface-modified layer of 18CrNiMo7-6 steel after case hardening were investigated via nanoindentation experiments.
Guiyuan Zhou, Jian Guo, Junyu Zhao, Qian Tang, Zhaonan Hu   +4 more
doaj   +4 more sources

Arrhenius constitutive model and dynamic recrystallization behavior of 18CrNiMo7-6 steel

Journal of Materials Research and Technology, 2023
In order to analyze the thermal deformation and dynamic recrystallization behavior of 18CrNiMo7-6 steel, the isothermal compression tests are carried out on Gleeble-3500 thermal simulator machine at deformation temperatures 973.15 K–1273.15 K with strain
Runze Cao, Wei Wang, Shibo Ma, Huajun Yan, Zhenkai Mu, Shuangjie Zhang   +5 more
doaj   +4 more sources

Effect of cylindrical longitudinal grinding process on surface integrity of 18CrNiMo7–6 steel

Jin'gangshi yu moliao moju gongcheng, 2022
In order to explore the influence of the grinding process parameters on the surface roughness and surface layer residual stress of 18CrNiMo7–6 steel, the cylindrical longitudinal grinding experiment was carried out by using an end cylindrical grinder ...
Haoyang ZHU, Wei GAO, Yinxia ZHANG, Zile WANG, Dong WANG   +4 more
doaj   +3 more sources

Residual strength degradation model of 18CrNiMo7-6 forged steel [PDF]

Advances in Mechanical Engineering, 2019
Residual strength is one of the important properties of materials and is the basis for material fatigue life prediction. In this article, the residual strength of 18CrNiMo7-6, a commonly used material for wind power gears, is degraded with the load of ...
Wei Wang, Jianmin Li, Jun Pan, Huanguo Chen, Ping Qian, Wenhua Chen   +5 more
doaj   +2 more sources

Static CCT Curve Measurement and Microstructure Analysis of 18CrNiMo7-6 Steel [PDF]

Teshugang
The continuous cooling expansion curve of 18CrNiMo7-6 wind power steel was tested by using a Gleeble-3800 thermal simulator at a cooling rate of 0.1-30 ℃/s.
Lu Feng, Zhang Pei, Li Qi, Qiu Guoxing
doaj   +3 more sources

Effect of carburizing process on high cycle fatigue behavior of 18CrNiMo7-6 steel

Journal of Materials Research and Technology, 2022
Carburizing heat treatment is widely used in the fabrication of gears to improve their fatigue performance. The effects of carburizing process on the material properties surface hardness, residual stresses, retained austenite of case-hardened 18CrNiMo7-6 ...
Shengwei Qin, Chenghao Zhang, Bang Zhang, Haiyang Ma, Minghao Zhao   +4 more
doaj   +2 more sources