Pith Number

pith:U6TEQUA7

pith:2026:U6TEQUA7Z7RLPQ6O6KFIF5WDXP

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High-Pressure XRD Study of Ti-3Al-2.5V Titanium Alloy: Intermediate Transition Pressure and Composition Trends in Ti-Al-V Alloys

C. Popescu, D. Errandonea, P. Botella, R. Oliva, R. Turnbull, S. MacLeod

Adding aluminum and vanadium to titanium raises the pressure required for its high-pressure structural phase transition while leaving bulk modulus unchanged.

arxiv:2605.13658 v1 · 2026-05-13 · cond-mat.mtrl-sci · physics.app-ph

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\pithnumber{U6TEQUA7Z7RLPQ6O6KFIF5WDXP}

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Claims

C1strongest claim

the transition pressure shows a clear and systematic increase with higher Al and V content... Equation-of-state analysis indicates that the bulk modulus remains nearly unchanged across compositions. This suggests a decoupling between elastic properties and phase stability, with alloying primarily affecting the transition pressure rather than compressibility.

C2weakest assumption

Despite variations arising from the choice of pressure medium, the transition pressure shows a clear and systematic increase with higher Al and V content.

C3one line summary

Ti-3Al-2.5V undergoes a high-pressure phase transition at 17-19 GPa that rises systematically with Al and V content, while bulk modulus stays constant across Ti-Al-V compositions.

References

20 extracted · 20 resolved · 0 Pith anchors

[1] Harnessing strengthening-metastability synergy for extreme work hardening in additively manufactured titanium alloys, Nat 2026 · doi:10.1038/s41467-025-67683-8

[2] Contrasting irradiation behavior of dual phases in Ti-6Al- 4V alloy at low-temperature due to ω-phase precursors in β-phase matrix 2024 · doi:10.1016/j.jallcom.2024.174701

[3] Leguey T, Schäublin R, Marmy P, and Victoria M, Microstructure of Ti5Al2.5Sn and Ti6Al4V deformed in tensile and fatigue tests. J. Nuclear Mat. 2002, 305, 52 -59. DOI: 10.1016/S0022-3115(02)00888-7 2002 · doi:10.1016/s0022-3115(02)00888-7

[4] Metals 2022, 12, 986 2022 · doi:10.3390/met12060986

[5] High pressure deformation induced precipitation in Al–Zn–Mg–Cu alloy (Al7075) 2022 · doi:10.1016/j.msea.2022.143765

Receipt and verification

First computed	2026-05-18T02:44:17.359288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7a648501fcfe2b7c3cef28a82f6c3bbd42cb06334017889315011e153798d9f

Aliases

arxiv: 2605.13658 · arxiv_version: 2605.13658v1 · doi: 10.48550/arxiv.2605.13658 · pith_short_12: U6TEQUA7Z7RL · pith_short_16: U6TEQUA7Z7RLPQ6O · pith_short_8: U6TEQUA7

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/U6TEQUA7Z7RLPQ6O6KFIF5WDXP \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a7a648501fcfe2b7c3cef28a82f6c3bbd42cb06334017889315011e153798d9f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "359c47321a921bcfd4273d929f923a86132759651740895dde71c9d70164e034",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2026-05-13T15:17:35Z",
    "title_canon_sha256": "970ad6ecf9068c043f8799fd6be07da83536a167b62c1df99d9a24ee53f21454"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.13658",
    "kind": "arxiv",
    "version": 1
  }
}