Results 11 to 20 of about 111,808 (361)

Strength and flexural behavior of steel fiber and silica fume incorporated self-compacting concrete

open access: yesJournal of Materials Research and Technology, 2021
Self-Compacting Concrete (SCC) that flows by its own weights without compaction or vibration, thereby no external energy from mechanical equipment. In addition to this, cement replacement with silica fume and the introduction of steel fibers have allowed
Abdalla M. Saba   +6 more
doaj   +1 more source

Hardening of Steel [PDF]

open access: yesNature, 1880
I SHOULD have, had circumstances permitted, thanked Mr. Walter R. Brown for his kind response to my letter, “Iron and Hydrogen” (NATURE, vol. xxii. p. 220), and for the reference to Mr. Anderson's report, with which I was unacquainted.
openaire   +3 more sources

Fatigue life of case-hardened steel roller with an effective case-hardened depth of 2mm

open access: yesNihon Kikai Gakkai ronbunshu, 2014
In this study, case-hardened steel rollers with an effective case-hardened depth of 2 mm were fatigue-tested using a roller testing machine in order to elucidate their rolling contact fatigue life. They were made of three kinds of steels.
Masanori SEKI   +3 more
doaj   +1 more source

Applications of Steel Slag Powder and Steel Slag Aggregate in Ultra-High Performance Concrete

open access: yesAdvances in Civil Engineering, 2018
The applications of steel slag powder and steel slag aggregate in ultra-high performance concrete (UHPC) were investigated by determining the fluidity, nonevaporable water content, and pore structure of paste and the compressive strength of concrete and ...
Jin Liu, Runhua Guo
doaj   +1 more source

Failure Mechanism of Contact Fatigue of Surface Super-hardened M50NiL Steel

open access: yesJournal of Aeronautical Materials, 2017
Hardness gradient, residual stress gradient and the organization structure of surface super-hardened M50NiL steel roller and M50 steel roller were studied, the rolling contact fatigue life was measured, and the failure process was analyzed and compared ...
LUO Qinghong   +3 more
doaj   +1 more source

Surface microhardening studies on steels after high feed milling [PDF]

open access: yes, 2018
The paper deals with the impact of high-speed machining production methods on the integrity of component surfaces. One has to point out that cutting conditions during machining have a significant impact on the final properties of surface and subsurface ...
Petrů, Jana   +3 more
core   +1 more source

Cutting Performance and Wear/Damage Characteristics of PCBN Tool in Hard Milling

open access: yesApplied Sciences, 2019
In the intermittent machining of hardened steel for the die and mold industry, determining how to reduce the wear of PCBN (Polycrystalline Cubic Boron Nitride) tools and improve their machining efficiency and quality is an important subject.
Haining Gao, Xianli Liu, Zhitao Chen
doaj   +1 more source

RESEARCH ON CUTTING VIBRATION OF HIGH SPEED MILLING HIGH HARDNESS HARDENED STEEL WITH COATED TOOLS

open access: yesJixie qiangdu, 2021
High speed milling of high hardness hardened steel has the characteristics of high cutting speed and high machining surface hardness,smooth and efficient milling can ensure quality and accuracy,while the generation of cutting vibrations limits the ...
XIE YingXing, WANG ChengYong
doaj  

Cryogenic Treatment of Carbide-free Bainite Steel After Carburizing

open access: yesCailiao gongcheng, 2017
The cryogenic treatment (CT) process of carbide-free bainite steel after carburizing was optimized by the method combining thermal magnetic analysis, microhardness analysis and direct reading spectrometric analysis.
SUN Shi-qing
doaj   +1 more source

Roughness evolution of previously milled samples along a polishing test [PDF]

open access: yes, 2016
In the present work results about roughness evolution along a polishing operation with corundum disks of size Norton 400 are presented. Hardened steel and hardened stainless steel samples were previously subjected to ball-end milling or side milling with
Buj Corral, Irene, Vivancos Calvet, Joan
core   +2 more sources

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