Enhanced strength, ductility and electrical conductivity of CuCrZr alloys by tailoring a heterogeneous layered microstructure

Han, Fei; Jiang, Yihui; Cao, Fei; Han, Le; Jialin, Zhu; Wang, Wei

doi:10.1016/j.msea.2022.144502

Cited by 10 publications

(2 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the applicability of this mechanism to Nb-Si alloys has not been investigated so far. Powder metallurgy technology has been adopted to fabricate HLS materials, achieving the superior synergy of strength and ductility [ 26 ]. Most of the current studies tend to laminate two different substances to prepare HLS materials.…”

Section: Introductionmentioning

confidence: 99%

Fracture Behavior and Mechanism of Nb-Si-Based Alloys with Heterogeneous Layered Structure

Wang,

Wang

et al. 2024

Materials

View full text Add to dashboard Cite

Novel Nb-Si-based alloys with heterogeneous layers that have the same composition (Nb-16 at.%Si) but different phase morphologies were designed in this work. Heterogeneous layered structure (HLS) was successfully fabricated in Nb-16Si alloys by layering composite powders after various degrees of mechanical alloying (6 h, 12 h, 18 h, and 24 h) alternately and subsequent spark plasma sintering (SPS). The influence of HLS on the fracture behavior at both room and elevated temperature was investigated via single-edge notched bending (SENB) and high-temperature compression, respectively. The results show that the diversified HLS is obtained by combining hard layers containing fine equiaxed crystals and/or soft ones with coarse lamellar niobium solid solution (Nbss). By affecting the crack propagation in SENB, HLS is favorable for improving the fracture toughness and exhibits a significant increase compared with the corresponding homogenous microstructure. Moreover, for the same HLS, a more excellent performance is achieved when the initial crack is located in the soft layer and extended across the interface to the hard one through crack bridging, crack deflection, crack branching, and shielding effect. Fracture starts in the soft layer (from powders of ball-milled for 12 h) of a 12–24 alloy, and a maximum KQ value (14.89 MPa·mm1/2) is consequently obtained, which is 33.8% higher than that of the homogeneous Nb-16Si alloy. Furthermore, the heterogeneous layered alloys display superior high-temperature compression strength, which is attributable to the dislocation multiplication and fine-grained structure. The proposed strategy in this study offers a promising route for fabricating Nb-Si-based alloys with optimized and improved mechanical properties to meet practical applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Fracture Behavior and Mechanism of Nb-Si-Based Alloys with Heterogeneous Layered Structure

Wang,

Wang

et al. 2024

Materials

View full text Add to dashboard Cite

show abstract

“…Metals and alloys are essential in mechanical systems due to their good electrical [1][2][3] and thermal conductivity [4][5][6] and ductility [7][8][9]. However, almost all mechanical systems with moving parts are inescapably susceptible to friction.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress on the 0D Nanomaterials in Metals for Lubrication

Zhang,

Lin

2023

AJST

View full text Add to dashboard Cite

Over the past two decades, metal-matrix composites reinforced with nano-materials have been extensively used in various prominent fields, such as aerospace, shipbuilding, and food machinery, etc., owing to their demonstrated good chemical, mechanical, and tribological properties. Nevertheless, understanding fundamental effects of nanomaterials in the friction and wear performances of metals has not been systematically reviewed by subdividing them from 0D dimensionality. Herein, this review summarizes the recent advances on tribological applications of 0D nanomaterials in the metals involving ferrous metals, nonferrous metals, and special metals, with the underlying friction-reducing and wear resistance mechanisms. In addition, practical application prospects, as well as future challenges and important recommendations of nanomaterials are briefly summarized, that are needed to boost the development of nano-tribology and expand the diversity of practical applications.

show abstract

The well-balanced strength and conductivity in additively manufactured CuCrZr-Y2O3 composites by regulating multi-scale heterostructures

Hu,

Jiang,

Qiao

et al. 2024

Journal of Manufacturing Processes

View full text Add to dashboard Cite

Enhanced strength, ductility and electrical conductivity of CuCrZr alloys by tailoring a heterogeneous layered microstructure

Cited by 10 publications

References 40 publications

Fracture Behavior and Mechanism of Nb-Si-Based Alloys with Heterogeneous Layered Structure

Fracture Behavior and Mechanism of Nb-Si-Based Alloys with Heterogeneous Layered Structure

Recent Progress on the 0D Nanomaterials in Metals for Lubrication

The well-balanced strength and conductivity in additively manufactured CuCrZr-Y2O3 composites by regulating multi-scale heterostructures

Contact Info

Product

Resources

About