Results 31 to 40 of about 1,387 (225)

New surface boriding technologies

, 2022
Boriding of steel and other materials with powder or paste-like precursors has been studied for many years. The process involves boron diffusing into the material at temperatures above 750° C.
Mejauschek, Markus, Vogtmann, Julian, Kaestner, Peter, Weber, Martin, Paschke, Hanno, Herrmann, Christoph   +5 more
core   +1 more source

Microstructure and wear properties of powder-pack borided Ti–5Al–2.5Sn alloy

Journal of Materials Research and Technology, 2023
The boride layer was prepared on the surface of Ti–5Al–2.5Sn alloy by powder-pack borided at 975–1075 °C for 20 h with a temperature interval of 25 °C, and surface morphology, phase composition, microstructure, hardness, and wear properties of the ...
Ying Wu, Yaoping Lu, Yonghua Duan, Xiaolong Zhou, Mingjun Peng, Xiaoqi Wang, Shanju Zheng   +6 more
doaj   +1 more source

Enhancing of Tribological, Mechanical and Microstructural Properties of HVOF Coated AISI 316 Steel by Boriding [PDF]

, 2023
Boriding has been attempted to further improve the wear resistance of high-velocity oxygen fuel (HVOF) coatings, often used for corrosion, oxidation or wear resistant applications.
Gok, Mustafa Sabri, Ozbek, Yildiz Yarali, Erdogan, Azmi, Gunen, Ali, Özbek, Yıldız Yaralı   +4 more
core   +1 more source

Research on Method for Contactless Gas-Phase Boron Enrichment of Steels and Alloys Using Powder Boron Sources

Metals
Contactless gas-phase boriding is suitable for strengthening the surface of precision steel components because it avoids direct contact between the workpiece and the boriding medium, thereby helping to maintain dimensional accuracy and surface roughness.
Shunqi Mei, Zekui Hu, Mikhail Guryev, Sergey Ivanov, Alexey Guryev, Sergey Zemlyakov, Guojun Fu, Quan Zheng   +7 more
doaj   +1 more source

Study on Rare Earth Catalysis in the Boriding Process to Titanium Alloy

, 2011
Solid powder boriding experiment was carried out on TC4 titanium alloy surface with method of RE(rare earth)-boriding at the temperature of over 1000°C. By means of XRD, SEM and EDS, phase composition, microstructure and morphology of TC4 titanium alloy ...
Jing Lei Zhang, Xiao Hong Yi, Zhan Guo Fan, Feng Hua Li   +3 more
core   +1 more source

Evaluation of Wear Resistance of AISI L6 and 5140 Steels after Surface Hardening with Boron and Copper

Lubricants, 2023
(1) Background: Boriding is one of the most common methods of thermal-chemical treatment due to its excellent hardness and wear resistance of the produced diffusion layers. However, it has limited application compared to carburizing and nitriding because
Stepan Lysykh, Vasily Kornopoltsev, Undrakh Mishigdorzhiyn, Yuri Kharaev, Zhongliang Xie   +4 more
doaj   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Impact of MgO Additions on the Oxidation Resistance and Compression Behavior of Vanadium Alloys

Advanced Engineering Materials, EarlyView.
An increase in oxidation resistance at 600 °C is achieved for alloys containing more than 2.5 wt.% MgO. It has been established that, along with V2O5, MgO6V2, and Mg2O7V2 are formed, which are presumed to enhance oxidative stability. Furthermore, the possible transformation of Mg‐vanadates through reaction with CO2, which presumably occurs in this ...
Ievgen Solodkyi, Mathias Galetz, Georg Hasemann, Fabian Lanoy, Emma White, Manja Krüger   +5 more
wiley   +1 more source

Prediction of Layer Thickness and Stability of Borided Cr–V Steel for Highly Stressed Tubular Components

Metals
This study evaluates pack boriding as an alternative to induction surface hardening in the manufacture of highly stressed tubular components exposed to combined mechanical, thermal and tribological loading, using the low-alloy Cr–V steel STN 15 230 as a ...
Richard Pastirčák, Peter Fabian, Marek Brůna, Martin Jaššo   +3 more
doaj   +1 more source

Diffusion kinetics of boron in the X200CrMoV12 high-alloy steel [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2015
In this work, the kinetics of formation of the boride layers (FeB/Fe2B), formed on the X200CrMoV12 steel used for the coldworking, was investigated. The boriding treatment was carried out in the powder mixture consisting of 5%B4C, 5% NaBF4 and ...
Azouani O., Keddam M., Brahimi A., Sehisseh A.   +3 more
doaj   +1 more source