4.7 Article

The microstructural origin of a hardness double-peak in an age-hardened EN-AW 6082

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Materials Science, Multidisciplinary

Influence of natural aging and ramping before artificial aging on the microstructure of two different 6xxx alloys

Christoph Martin Hell et al.

Summary: This study analyzed the effects of ramping up to artificial aging (AA) temperature in combination with natural aging (NA) on two different industrial aluminium alloys. The findings suggest that NA prior to AA reduces the strength of the alloys regardless of ramping. However, for the alloy with a high copper (Cu) content, a clear increase in peak hardness was observed when ramped from the supersaturated solid solution (SSSS). The length of the peak strength plateau is shorter for ramped samples, regardless of the NA time. Microscopy investigations revealed longer but fewer precipitates when ramped from the SSSS, and an increased precipitate number density when ramped after NA. The presence of fewer hybrid-type and overaged precipitates and more L/C was observed for all ramped conditions. Atom probe tomography measurements showed that more solute is left in the matrix between the precipitates when ramped directly from the SSSS, which is related to a lower precipitate number density.

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T (2022)

Article Materials Science, Multidisciplinary

Modeling of precipitate strengthening with near-chemical accuracy: case study of Al-6xxx alloys

Yi Hu et al.

Summary: In this study, the interaction mechanisms between dislocations and precipitates in Al-6xxx Al-Mg-Si alloys were investigated using atomistic simulations and accurate interatomic potentials. The results show that the shearing or looping behavior of precipitates depends on the relative orientation of dislocations and precipitates, as well as other factors. Analytic models for shearing and calibrated discrete dislocation models of looping accurately predict the strengthening effects, and better agreement with experiments is achieved by incorporating first-principles material properties. This research provides a pathway for understanding and predicting the role of chemistry and microstructure on alloy strength, which can be applied to various types of alloys.

ACTA MATERIALIA (2022)

Article Chemistry, Physical

Precipitation in an A356 foundry alloy with Cu additions - A transmission electron microscopy study

Eva A. Mortsell et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2019)

Article Engineering, Mechanical

Assessment of advanced Taylor models, the Taylor factor and yield-surface exponent for FCC metals

K. Zhang et al.

INTERNATIONAL JOURNAL OF PLASTICITY (2019)

Review Materials Science, Multidisciplinary

Atomic Structures of Precipitates in Al-Mg-Si Alloys with Small Additions of Other Elements

Takeshi Saito et al.

ADVANCED ENGINEERING MATERIALS (2018)

Article Engineering, Mechanical

Origin of double-peak precipitation hardening in metallic alloys

Haidong Fan et al.

INTERNATIONAL JOURNAL OF PLASTICITY (2018)

Article Materials Science, Multidisciplinary

Precipitation of Non-spherical Particles in Aluminum Alloys Part II: Numerical Simulation and Experimental Characterization During Aging Treatment of an Al-Mg-Si Alloy

Qiang Du et al.

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2016)

Article Materials Science, Multidisciplinary

Strength contributions from precipitates

Bjorn Holmedal

PHILOSOPHICAL MAGAZINE LETTERS (2015)

Article Microscopy

Smart Align-a new tool for robust non-rigid registration of scanning microscope data

Lewys Jones et al.

ADVANCED STRUCTURAL AND CHEMICAL IMAGING (2015)

Article Nanoscience & Nanotechnology

The effects of quench rate and pre-deformation on precipitation hardening in Al-Mg-Si alloys with different Cu amounts

Takeshi Saito et al.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2014)

Article Metallurgy & Metallurgical Engineering

Experiments and modeling of double-peak precipitation hardening and strengthening mechanisms in Al-Zn-Mg alloy

Xiao-wu Nie et al.

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA (2014)

Proceedings Paper Materials Science, Multidisciplinary

The Effect of Obstacle Strength Distribution on the Critical Resolved Shear Stress of Engineering Alloys.

A. de Vaucorbeil et al.

Aluminium Alloys 2014 - ICAA14 (2014)

Article Materials Science, Multidisciplinary

Double-peak age strengthening of cold-worked 2024 aluminum alloy

Y. L. Zhao et al.

ACTA MATERIALIA (2013)

Article Materials Science, Multidisciplinary

Mechanisms controlling the artificial aging of Al-Mg-Si Alloys

S. Pogatscher et al.

ACTA MATERIALIA (2011)

Article Materials Science, Multidisciplinary

The effect of Cu on precipitation in Al-Mg-Si alloys

C. D. Marioara et al.

PHILOSOPHICAL MAGAZINE (2007)

Article Materials Science, Multidisciplinary

Nano-sized twins induce high rate sensitivity of flow stress in pure copper

L Lu et al.

ACTA MATERIALIA (2005)

Article Materials Science, Multidisciplinary

Ageing behaviour of an Fe-20Ni-1.8Mn-1.6Ti-0.59Al (wt%) maraging alloy: clustering, precipitation and hardening

EV Pereloma et al.

ACTA MATERIALIA (2004)

Article Materials Science, Multidisciplinary

Age-hardening behavior of cast Al-Si base alloy

RX Li et al.

MATERIALS LETTERS (2004)

Article Materials Science, Multidisciplinary

The influence of precipitation on the work-hardening behavior of the aluminum alloys AA6111 and AA7030

LM Cheng et al.

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2003)

Article Materials Science, Multidisciplinary

A yield strength model for the Al-Mg-Si-Cu alloy AA6111

S Esmaeili et al.

ACTA MATERIALIA (2003)

Article Nanoscience & Nanotechnology

Synthesis and characterization of electrodeposited nanocrystalline nickel-iron alloys

HQ Li et al.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2003)

Article Materials Science, Multidisciplinary

Modelling of the age hardening behaviour of Al-Mg-Si alloys

OR Myhr et al.

ACTA MATERIALIA (2001)