Results 71 to 80 of about 30,687 (310)

Friction drilling of dual phase steels

, 2012
En este trabajo se expone un estudio del proceso de taladrado por fricción en chapas de diferentes aceros de doble fase (DP), con límites elásticos variables desde 600 hasta 800 MPa. Se realiza una evaluación de las condiciones óptimas de mecanizado en función del material y el espesor empleado, variando las velocidades de giro y los avances de ...
Nardi, D., López de Lacalle, L. N., Lamikiz, A.   +2 more
openaire   +2 more sources

Vacuum carburizing of a dual phase steel.

Transactions of the Iron and Steel Institute of Japan, 1985
A dual phase steel has been developed for which grain refining treatment subsequent to vacuum carburizing treatment at high temperature above 1000°C is not necessary. This 2wt% Si steel, which contains 0.3 wt% V and 0.04 wt% Nb, has a fine structure in both the core and case, sufficient surface hardness and excellent mechanical properties equivalent to
SHIBATA, Kimihiro, MATSUMOTO, Takashi, FUJII, Shin, TAKADA, Katsunori   +3 more
openaire   +2 more sources

CX3CL1 in Early Detection of Alzheimer's Disease: Plasma Dynamics Across Age and Disease Stages

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Backgrounds Alzheimer's disease (AD) is characterized by amyloid‐beta plaques, tau tangles, and neuroinflammation. C‐X3‐C motif chemokine ligand 1 (CX3CL1, also known as fractalkine), a neuroimmune chemokine implicated in AD pathogenesis, shows inconsistent alterations in plasma/serum across studies.
Ling Wang, Yujie Liu, Fei Li, Xuelin Li, Lanlan Li, Jie Zhang, Yali Xu   +6 more
wiley   +1 more source

Full-field evaluation of the onset of microplasticity in a steel specimen [PDF]

, 2009
This work deals with the study of the local onset of microplasticity in a steel specimen under tensile test through the use of a full-field strain measurement method at the micrometric scale.
Moulart, Raphaël, Rotinat, René, Pierron, Fabrice   +2 more
core   +1 more source

On the damage initiation in dual phase steels

, 2021
Ziel dieser Arbeit ist die mikromechanische Untersuchung der Schädigungsinitiierung in einem Dualphasenstahl (DP800). Mikrometer kleine Druck- und Bruchmechanikproben wurden hierfür mittels fokussierter Ionenstrahlen (FIB) in einzelne Körner des Dualphasenstahls geschnitten und anschließend durch in situ im Rasterelektronenmikroskop verformt.
openaire   +2 more sources

Effect of Quenching in Dual-phase Region on Microstructure and Mechanical Properties of 7Ni Steel

Cailiao gongcheng, 2018
The influence of quenching temperature and holding time in dual-phase region on microstructure and mechanical properties of 7Ni steel was studied by X-ray diffractometer, scanning electron microscopy and thermal dilatometer.
XU Li-xiong, WU Hui-bin, MOU Dan
doaj   +1 more source

A Prospective Study of Individuals at Risk of Multiple Sclerosis Informs the Design of Primary Prevention Studies

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective In multiple sclerosis, the optimal time for deploying a therapeutic intervention is before the central nervous system is damaged; given the success of trials treating the earliest stage of MS, the radiologically isolated syndrome, developing primary prevention strategies is an important next challenge.
Amy W. Laitinen, Ceren Tozlu, Tina Roostaei, Fatoumata Diallo, Kaho Onomichi, Jiyeon Son, Zongqi Xia, Philip L. De Jager   +7 more
wiley   +1 more source

Tailoring dual-phase steel properties through controlled temperature and holding time during heat treatment [PDF]

MATEC Web of Conferences
This study investigates the effect of controlled temperature and holding time on the microstructure and properties of DP600 dual-phase steel. Low-carbon steel (0.3 wt%C) was heat-treated at 850°C with holding times of 20, 40, 60, and 80 minutes, followed
Olorundaisi Emmanuel, Olubambi Peter A.
doaj   +1 more source

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang, Huiying Wang, Zhizheng Zhuo, Ai Guo, Ke Lv, Decai Tian, Chao Chai, Yunyun Duan, Shuang Xia   +8 more
wiley   +1 more source

Determining the influence of material solutions on durability and tare mass of light car trailers [PDF]

Transport Problems, 2010
The modern light trailers constructions are expected to have considerable safety level, guaranteed by the high construction durability as well as possible low mass.
Maciej BOLDYS
doaj