Results 81 to 90 of about 9,757 (244)

HWTS 50 Tool Steel Tailored for Laser Powder Bed Fusion: Sliding Wear of Bare Surfaces and Nitriding Response in Comparison with 18Ni300 and AISI H13

steel research international, EarlyView.
This work investigates the wear resistance and nitriding behavior of PBF‐LB/M‐processed Osprey HWTS 50, a lean hot work tool steel. Three heat treatment conditions are compared to conventional wrought H13, H11, and PBF‐LB/M 18Ni300. The study highlights HWTS 50's enhanced nitrogen diffusion, deeper nitriding hardness depth, and comparable or improved ...
Jonathan Hann, Giorgia Lupi, Sylvain Dossin, Riccardo Casati, Mandanà Moshiri, Arne Röttger, Faraz Deirmina   +6 more
wiley   +1 more source

Effect of TiH2 addition on grinding performance of Cu3Sn intermetalliccompound diamond wheels

Jin'gangshi yu moliao moju gongcheng
ObjectivesWith the development of the modern manufacturing industry, the requirements for material machining accuracy and surface quality are increases continuously. For the precision grinding of high hardness and high wear-resistant materials, superhard
Keqiao HE, Shuaipeng CHEN, Xiyue KANG, Yuehui HE   +3 more
doaj   +1 more source

Effect of Double Annealing on the Microstructure and Mechanical Properties of a Medium Manganese Steel

steel research international, EarlyView.
A double intercritical annealing strategy is proposed to tailor the multiphase microstructure and mechanical response of a medium‐Mn steel. The treatment produces an ultrafine mixture of ferrite, martensite and multiple austenite populations with graded thermal and mechanical stability, formed through austenite reversion and controlled retransformation.
Mattia Franceschi, Jose A. Jimenez, Carlos Garcia‐Mateo, Radhakanta Rana   +3 more
wiley   +1 more source

Surface roughness control technology of rake face of natural diamond tool

Jin'gangshi yu moliao moju gongcheng, 2019
The development and technical characteristics of diamond tools are introduced. A grinding method for controlling the surface roughness of the rake face of natural diamond tools is designed. The results show that for the diamond (100) surface, the surface
JIA Lu, ZHANG Xiaofeng, XIA Zhihui, WANG Wensheng, LEI Dajiang   +4 more
doaj  

Analyses of the Deformability and Chemistry of Non‐Metallic Inclusions in QT Steels With Increased Recycling‐Induced Tramp Element Content

steel research international, EarlyView.
This work uses high‐temperature dilatometry to examine how the tramp elements Cu, Ni, and Sn affect the deformability of non‐metallic inclusions and matrix in quench‐and‐temper steel. Mg‐bearing inclusions deform less than Mg‐free ones. Copper lowers formability. Nickel increases deformability.
Julian Cejka, Isabell Gruber, Gerald Klösch, Susanne Katharina Michelic   +3 more
wiley   +1 more source

Effect of grinding wheel type and cooling method on grinding quality of SiC_f/SiC ceramic matrix composites

Jin'gangshi yu moliao moju gongcheng
ObjectivesSiCf/SiC fiber-reinforced ceramic matrix composites have been widely used in aerospace, nuclear energy, and high temperature structural parts due to their excellent high-temperature resistance, high specific strength, and oxidation resistance ...
Ben WANG, Jiajie TANG, Hongdi CHU, Qi ZHANG   +3 more
doaj  

Tailored Hardening and Isothermal Bainitizing of Additively Manufactured Nitrogen‐Enhanced Martensitic Chromium Steel

steel research international, EarlyView.
Tailored heat treatments transform additively manufactured high‐nitrogen martensitic Cr steel from austenitic as‐built condition to high‐hardness states. Isothermal bainitizing at 250°C generates an ultrafine nanostructure and achieves higher hardness than conventional hardening and tempering, highlighting a promising postprocessing route for laser ...
Philip König, Sebastian Weber, Jonathan Lentz   +2 more
wiley   +1 more source

Stability and process control of single-diamond grinding based on clustering of processing morphology data

Jin'gangshi yu moliao moju gongcheng
ObjectivesIn the precision grinding process of hard mold steel workpieces, the subtle changes in machining depth can significantly cause dynamic changes in the magnitude and the direction of grinding forces, which directly lead to unstable machining ...
Xinyu XU, Xiansong HE, Zhaojie CHEN, Jingying ZHANG, Linfeng YANG, Jin XIE   +5 more
doaj   +1 more source

Characterization of Nonmetallic Inclusions in Ce‐Containing Steels at the Submicroscopic Level

steel research international, EarlyView.
Accurate detection of nonmetallic inclusions (NMIs) is crucial for ensuring high standards in steel cleanness and properties. Optimized automated SEM/EDS measurements are required for evaluating Ce‐containing NMIs. This study enhances the characterization of submicroscopic NMI in Ce‐alloyed ultralow‐carbon, high‐manganese, and electrical steels ...
Kathrin Thiele, Robert Musi
wiley   +1 more source

The Influence of the Pretreatment of Tool Steel on the Running‐In Phase of Diamond‐Like Carbon Coatings

steel research international, EarlyView.
The influence of tool steel pretreatment on the running‐in behavior of TiNb‐diamond‐like carbon (DLC) coatings is investigated. Ion etching promotes carbide protrusion and increases coating roughness, while post‐deposition polishing reduces surface asperities.
Matěj Buřil, Ladislav Cvrček, Jan Walter, Miha Čekada, Marie Kudrnová, František Lukáč   +5 more
wiley   +1 more source