Materials Science

孪晶强化

Nanotwin strengthening

A strengthening mechanism in metallic alloys where the introduction of nanoscale twin boundaries impedes dislocation motion, thereby increasing yield strength without significantly compromising ductility. / 一种金属合金强化机制，通过引入纳米级孪晶界阻碍位错运动，从而在不显著降低延展性的情况下提高屈服强度。

Knowledge type: 自然理论
First proposed or discovered
Proposer: Turkey Farm member
Creator: 农场主
Last updated: 2026-10-27 18:00:27

Sub-knowledge points

Formation mechanism of nanotwins in as-cast alloysOptimization of twin density for maximum toughness

Higher-order knowledge points

High-entropy alloysPhase transformation toughening

Main parameters and performance indicators

Nanotwin spacing: Critical for controlling strength and ductility balanceAlloy composition: Ti-7.5Mo-4Al-4Zr-3Nb-2Cr-1Fe

Open problems

No unresolved problem recorded yet

Related literature

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Achieving ultrahigh strength and toughness in as-cast Ti-7.5Mo-4Al-4Zr-3Nb-2Cr-1Fe alloy through the formation of nanotwinsOpen source

孪晶强化

Sub-knowledge points

Higher-order knowledge points

Main parameters and performance indicators

Open problems

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