Results 71 to 80 of about 1,504,487 (204)

Die design of powder metallurgy hand tight nuts used for power tools

Fenmo yejin jishu
The structure of powder metallurgy hand tight nuts used for power tools is complex. The reasonable die structure and size were found out in this paper by the careful analysis of product structure and forming process, combining with 3D design software and
SUN Lichen, GU Wenjin, ZHU Zhongmin, GONG Liguo   +3 more
doaj   +1 more source

Superior mechanical properties and strengthening mechanisms of lightweight AlxCrNbVMo refractory high-entropy alloys (x = 0, 0.5, 1.0) fabricated by the powder metallurgy process

, 2020
Light and strong AlxCrNbVMo (x = 0, 0.5, and 1.0) refractory high-entropy alloys (RHEAs) were designed and fabricated via a the powder metallurgical process. The microstructure of the AlxCrNbVMo alloys consisted of a single BCC crystalline structure with
B. Kang, Taeyeong Kong, H. Ryu, S. Hong
semanticscholar   +1 more source

Large Language Model‐Informed Dual‐Track AI Framework for the Synergistic Design of Crack‐Free and High‐Strength Superalloys

Advanced Science
Laser Powder Bed Fusion of high performance nickel‐based superalloys is a transformative technology hindered by acute hot‐cracking susceptibility and prohibitively expensive process optimization cycles. Traditional data‐driven AI models often suffer from
Jian Yao, Junkang Wu, Jie Su, Fuzhu Wang, Zi Wang, Li Wang, Liming Tan, Lan Huang, Feng Liu, Yong Liu   +9 more
doaj   +1 more source

Metallurgy principles applied to powder bed fusion 3D printing/additive manufacturing of personalized and optimized metal and alloy biomedical implants: an overview

, 2020
This overview presents a survey of the state-of-the-art of laser and electron beam powder bed fusion, 3D printing design, development, fabrication and applications of porous, or open-cellular metal and alloy personalized implants; and is particularly ...
L. Murr
semanticscholar   +1 more source

A REVIEW OF COMPUTER SIMULATIONS IN POWDER INJECTION MOLDING

, 2019
The powder injection molding (PIM) process is complicated since it is a hybrid technology embracing plastic injection molding, powder metallurgy (PM), and ceramic processing. In developing this technology, engineers have relied heavily on trial-and-error
German, RM, Kwon, YS, Chung, SH, Kim, SG, Kim, S, Atre, SV, Lee, S, Park, SJ, Ahn, S, Kang, TG, Chung, ST   +10 more
core  

Visualizing dual-sites synergistic catalysis in non-iridium catalysts for acidic oxygen evolution reaction

Nature Communications
Understanding electron transfer at the solid/liquid electrochemical interface is critical for deciphering synergistic catalysis, yet elucidating how metal dopants mediate charge transfer between adjacent active centers remains challenging.
Meihuan Liu, Qianqian Xu, Peiqiong Zhou, Jianling Liu, Yan Zhang   +4 more
doaj   +1 more source

Sepiolite: A new component suitable for 380 ​km/h high-speed rail brake pads

Advanced Powder Materials
To enhance the high-temperature adaptability of copper-based composite materials and C–C/SiC discs, this article innovatively introduces a method of replacing graphite with sepiolite, resulting in the successful fabrication of samples with exceptional ...
Jiaqi Wu, Zhuan Li, Guoyuan Wen, Zonglong Gao, Ye Li, Yang Li, Peng Xiao   +6 more
doaj   +1 more source

Effect of reaction sintering modes on the structure and properties of carbide ceramics

Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2019
Experimental studies of the structure, phase composition, physical and mechanical properties of the reaction-sintered ceramics based on silicon carbide and boron obtained by reaction sintering have been performed. It has been shown that the properties of
E. V. Zvonarev, A. Ph. Ilyushchanka, Zh. A. Vitko, V. A. Osipov, D. V. Babura   +4 more
doaj   +1 more source

Synchronously enhanced printability and properties of additively manufactured nickel-based superalloys via alloying minor Sc

Journal of Materials Research and Technology
As major forming elements of γ′ strengthening phase, Al and Ti are critical for achieving superior properties of Ni-based superalloy. However, Al + Ti over 6 wt% leads to poor printability and cracking during additive manufacturing.
Liming Tan, Xiaoqiong Ouyang, Lin Ye, Heng Dong, Xiangyou Xiao, Jie Su, Lan Huang, Feng Liu   +7 more
doaj   +1 more source

High temperature oxidation behavior of TiC ceramics by hot-pressed sintering

Cailiao gongcheng
The long-term oxidation resistance of TiC ceramics is a key parameter for their application in aerospace industries and must be carefully evaluated at high temperatures and various airflow environments.
XIE Fengminyu, YIN Jian, XIONG Xiang, WANG Shuai, TANG Lei, ZHANG Hongbo   +5 more
doaj   +1 more source