Results 141 to 150 of about 488,216 (336)

Laser Metal Deposition of Aluminum Alloys 7075 and 5083 with the Addition of Volatile Alloying Elements through Powder Blending

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser metal deposition of aluminum alloys EN AW‐7075 and EN AW‐5083, using powder blending to compensate zinc and magnesium evaporation. In situ alloying and ex situ alloying with ZnAl12 and AZ91 preserve near‐standard compositions and improve mechanical properties.
Finn Bendixen   +3 more
wiley   +1 more source

Designing and Testing of the Grounding Technology Solution within an Intercity EMUs

open access: yes机车电传动, 2018
The grounding technology solution is very important for the EMUs, which affects the reliability of the EMUs. According to demand of the rational design of the grounding technology solution for an intercity EMUs, the technology of simulation calculating ...
CHEN Leheng, LI Dongbo, LIU Yanxiang
doaj  

A contribution to the rationalization of grounding impedance measurement in medium voltage substations [PDF]

open access: yesTehnika, 2019
In this paper, a method for grounding impedance measurement is proposed. The method is experimentally validated in five substations rated voltage 35/10 kV.
Kostić Vojin I.
doaj  

PBF‐LB/M of Ti‐6Al‐4V: High‐Pressure Solution Treatment and Aging for Applications in a Sustainable Aerospace

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing (AM) allows great geometric freedom for lightweight components. As parts are progressively optimized exploiting potentials in AM leading in smaller material cross sections, high pressure solution treating and aging (STA) treatments show an enormous potential for strongly improving material properties.
Mika León Altmann   +4 more
wiley   +1 more source

Social Justice Through the Lens of the Cross: A Case for a Biblical Foundation of Social Work [PDF]

open access: yes, 2019
Social work values social justice, as the profession promotes the well-being of society and the rights each person holds. Although social justice is a core value of social work, it is necessary to address the value’s foundation, and questioning the “why”
Kasch, Allison P
core   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan   +4 more
wiley   +1 more source

A Statistical Analysis of Ship Accidents (1990–2020) Focusing on Collision, Grounding, Hull Failure, and Resulting Hull Damage

open access: yesJournal of Marine Science and Engineering
In this work, over a thousand maritime casualty reports were reviewed in order to fully investigate and assess selected 213 marine accidents concerning the collision, grounding, and hull failure of ships, which occurred during the time period of 1990 ...
Aggelos N. Pilatis   +4 more
doaj   +1 more source

Tribological Performance of 60NiTi Alloy Under Varying Contact Conditions and Elevated Temperatures in Linear Reciprocating Sliding

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates the tribological response of 60NiTi alloy under dry, water‐lubricated and high‐temperature conditions. The alloy exhibits decreasing wear volume and friction with increasing temperature due to the formation of protective oxide layers. The work clarifies dominant wear mechanisms and demonstrates the suitability of 60NiTi for high‐
Anthony Onyebuchi Okoani   +2 more
wiley   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

open access: yesAdvanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin   +4 more
wiley   +1 more source

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