Engineering and Technology

Metals strengthen with increasing temperature at extreme strain rates

I. Dowding and C. A. Schuh

This groundbreaking research conducted by Ian Dowding and Christopher A. Schuh delves into the unusual behavior of materials such as copper, titanium, and gold at extreme strain rates, revealing that these metals actually strengthen with increased temperature, defying conventional expectations.

00:00

Playback language: English

Index

Abstract

This study investigates the strength of materials at extreme strain rates, exceeding 10⁶ s⁻¹. Using microballistic impact testing, the researchers demonstrate that the strength of copper, titanium, and gold increases with temperature, a counterintuitive finding as most materials soften when heated. This anomalous thermal strengthening is attributed to a shift in the controlling deformation mechanism from thermally activated strengthening to ballistic transport of dislocations.

Publisher

Nature

Published On

Jun 06, 2024

Authors

Ian Dowding, Christopher A. Schuh

Related Publications

Explore these studies to deepen your understanding of the subject.

Chemistry

Molecular ferroelectric with low-magnetic-field magnetoelectricity at room temperature

Z. Hu, X. Yang, et al.

Biology

Mapping protein dynamics at high spatial resolution with temperature-jump X-ray crystallography

A. M. Wolff, E. Nango, et al.

Environmental Studies and Forestry

Change in cooling degree days with global mean temperature rise increasing from 1.5 °C to 2.0 °C

N. D. Miranda, J. Lizana, et al.

Physics

Microwave mode cooling and cavity quantum electrodynamics effects at room temperature with optically cooled nitrogen-vacancy center spins

Y. Zhang, Q. Wu, et al.

Listen, Learn & Level Up

Over 10,000 hours of research content in 25+ fields, available in 12+ languages.

No more digging through PDFs, just hit play and absorb the world's latest research in your language, on your time.

listen to research audio papers with researchbunny