Hardness - Wikipedia
网页In materials science, hardness (antonym: softness) is a measure of the resistance to localized plastic deformation, such as an indentation (over an area) or a scratch (linear), induced mechanically either by pressing or abrasion.
Designing of high entropy alloys with high hardness: a ... - Nature
网页2024年4月2日 · The applications of HEAs in aerospace, marine, cryogenic, space, and transportation have increased over the past 2 decades due to their exceptional properties such as high strength with ductility...
High-entropy high-hardness metal carbides discovered by …
网页2018年11月26日 · The overwhelming number of possible high-entropy materials represents a big challenge for predicting their existence. Here, the authors introduce an entropy-forming-ability descriptor capturing...
Strength vs. Hardness vs. Toughness - Engineering Stack Exchange
网页2019年2月12日 · Hardness is the measure of a material resistance to scratching, like it's hard to drill a hole into, or hard to sand. Or diamond that can cut many surfaces but is hard to cut. Toughness is the ability of material to resist cracking or breaking under stress.
Rapid discovery of high hardness multi-principal-element alloys …
网页2023年9月15日 · More precisely, two alloys with high hardness (one with hardness > 941 HV and another with 858 HV) were discovered and were validated experimentally. The technique demonstrates the capability of GAN to generate new optimized compositions even in a high dimensional space that exhibit a hardness 10% higher than the maximum hardness in the ...
Superhard bulk high-entropy carbides with enhanced toughness …
网页2023年9月15日 · Despite the extremely high hardness of recently proposed high-entropy carbides (HECs), the low fracture toughness limits their applications in harsh mechanical environment. Here, we introduce a...
Mechanical Behavior of High-Entropy Alloys: A Review
网页As a new kind of advanced alloys, HEAs exhibit desirable properties for industry, such as high hardness, wear, fatigue, and corrosion resistance. As such, HEAs are potential candidates for use in different applications, such as …
High hardness in the biocompatible intermetallic compound β …
网页2016年7月20日 · Ti 3 Au exhibits high hardness values (about four times those of pure Ti and most steel alloys), reduced coefficient of friction and wear rates, and biocompatibility, all of which are optimal traits for orthopedic, dental, and prosthetic applications. In addition, the ability of this compound to adhere to ceramic parts can reduce both the ...
High hardness and fatigue resistance of CoCrFeMnNi high entropy …
网页2020年8月1日 · Our results showed a high hardness of ~9 GPa and fair fatigue resistance (~10 4 cycles) for both amorphous and high-density nanotwinned crystalline layers. For the ultrahigh-density nanotwinned columnar grain structure, a high hardness of ~8.5 GPa and an excellent fatigue resistance (~10 6 cycles) were obtained.
Lightweight and high hardness (AlNbTiVCr)100-xNix high …
网页2023年7月1日 · The highest hardness reaches 740.8 HV. •. The mechanical properties of alloys are significantly improved by the addition of Ni. •. The strengthening mechanism is attributed to precipitation strengthening and Solid solution strengthening. •. The theoretical density of alloys in this paper is less than 6 g/cm −3. Abstract.