Results 51 to 60 of about 172 (141)

Mathematical Modeling and Finite Element Analysis of Residual Stress (RS) Field after Multipass Ultrasonic Surface Rolling

Advances in Materials Science and Engineering, Volume 2024, Issue 1, 2024.
In order to achieve the change rule of the induced residual stress (RS) field after multipass ultrasonic surface rolling (USR), a mathematical model of the induced residual stress (RS) field after multipass ultrasonic surface rolling is first established.
Jinggan Shao, Zhanshu He, Genshang Wu, Zhi Zhang, Chao Li, Ivan Giorgio   +5 more
wiley   +1 more source

Hot Forging Die Design Optimization Using FEM Analysis for Near-Net Forming of 18CrNiMo7-6 Steel Pinion Shaft

Metals, 2023
The objective of the presented work was to develop a new forging process for a pinion shaft as a component of a wind turbine. A study of near-net-shape forming using Deform 3D software was performed to reduce operational cost, time, and material scrap ...
Nijenthan Rajendran, Charles Chemale Yurgel, Wojciech Z. Misiolek, Ricardo Alves de Sousa   +3 more
doaj   +1 more source

Analytical model for predicting coverage in suspension waterjet shot peening and its influence on fatigue

Materials Research Express, 2023
Suspension waterjet peening is an emerging technology for surface modification. Coverage is a key factor affecting the integrity of a modified material surface, however such an experimental method that can be utilized for precise control has not yet been
Yongtao Ma, Chunfan Li, Ning Sun, Lanrong Liu, Chunsheng Lu, Junlong Wang, Bin Zhang   +6 more
doaj   +1 more source

Effect of Normalized Cooling Rate on Structure and Hardness of Gear Steel 18CrNiMo7-6

Teshugang, 2013
Tested steel 18CrNiMo7-6 (/%: 0. 17C, 0. 59Mn, 0. 24Si, 1.56Ni, 1.71Cr, 0. 28Mo) is a case-hardening steel for gear, it is required that the structure of normalized steel is ferrite + pearlite and has lower HB hardness value.
刘金鑫, 冯桂萍, 程丽杰, 王海江   +3 more
doaj  

The Effect of a Gear Oil on Abrasion, Scuffing, and Pitting of the DLC-Coated 18CrNiMo7-6 Steel [PDF]

Coatings, 2018
The transmissions of mining conveyors are exposed to very harsh conditions. These are primarily related to the contamination of the gear oil with hard particles coming from coal and lignite, which can cause intensive abrasive wear, scuffing, and even pitting, limiting the life of gears.
Remigiusz Michalczewski, Marek Kalbarczyk, Anita Mańkowska-Snopczyńska, Edyta Osuch-Słomka, Witold Piekoszewski, Andrzej Snarski-Adamski, Marian Szczerek, Waldemar Tuszyński, Jan Wulczyński, Andrzej Wieczorek   +9 more
openaire   +1 more source

Effect of the Carburizing Process on the Microstructure and Properties of 18CrNiMo7-6 Steel

High-temperature carburizing heat treatment of 18CrNiMo7-6 steel was carried out at 930 °C, 950 °C and 970 °C. The effects of carburizing process on the microstructure, hardness and wear resistance of 18CrNiMo7-6 steel were studied. The results showed that the microstructure after high-temperature carburizing was mainly tempered martensite, and there ...
Yuan, Yuedong, Yang, Jiawei, Xue, Yu, Chen, Qiyuan, Du, Zunzhong, Chen, Ke, Zhang, Guoqun, Wang, Xiaonan   +7 more
openaire   +1 more source

Evolution of friction and wear in rack-railway gear–rack pairs under heavy-load dry sliding conditions

AIP Advances
Rack railways commonly operate under extreme conditions—steep gradients, heavy loads, and dry sliding—where wear of the gear–rack pair becomes a critical limitation to both safety and cost-effectiveness.
Haowei Yu, Yang Yang, Dehao Wei, Deqiang Tan   +3 more
doaj   +1 more source

Production Practice of 18CrNiMo7-6 Electroslag Process for High-speed Rail Gear Steel

Teshugang, 2023
In order to achieve the goal of high cleanliness of high-speed gear steel，especially the size of single-Particle D spherical inclusions ≤10 μm， electroslag process was developed to produce high-speed rail gear steel 18CrNiMo7-6 （/%：0.15-0.21C， ≤0.40Si，0 ...
Wang Zhixiang, Nan hai, Zhang Jinwen
doaj  

Research on the Influence of the Isothermal Normalizing Cooling Rate on the Mechanically Polished Surface Roughness of Wind Power Gear Blanks

Metals
This study takes 18CrNiMo7-6 wind power gear steel as the object. Following the first holding stage of isothermal normalizing, the 18CrNiMo7-6 wind power gear blanks were cooled to the isothermal temperature via air cooling (AC) and forced-air cooling ...
Yuhao Wang, Aijun Deng, Guozhong Jin, Shengfu Wu, Song Ye, Zhenyi Huang   +5 more
doaj   +1 more source

Study on hardness and wear behavior of surface modification layer of 18CrNiMo7-6 alloy steel based on repeated scratch test

Jixie qiangdu
ObjectiveTo investigate the hardness and wear resistance of 18CrNiMo7-6 alloy steel and its surface modification layer after carburizing heat treatment.MethodsRepeated scratch tests were conducted using a Vickers indenter on both the 18CrNiMo7-6 alloy ...
PENG Teng, ZHANG Jianwei, LI Chuanhang, SUN Yigang, SUN Luhang   +4 more
doaj