ZTi-Technologies Holding · Couche 1b — Famille ZTi-Powder · Confidentiel Investisseur

The Superior
Ti-Al-V-Zr Alloy.

Ti − 20Zr − 6.5Al − 4V · (10−35)Zr Family · EIGA Pre-Alloyed Powder · AM-Native

T20Z achieves >750 MPa fatigue without HIP — surpassing forged Ti-6Al-4V and Ti-6Al-4V AM+HIP. Zero toxic ions. ×26 corrosion resistance. Full MDR 2025 compliance. 22-claim patent family. The only quaternary Ti-Al-V-Zr alloy family claimed for additive manufacturing.

Investment Case ↓ Technical Performance
>750
MPa HCF fatigue
AM without HIP · 10⁷ cycles
×26
Corrosion resistance
vs Ti-6Al-4V · Xia et al. 2016
916 HV
Surface hardness after LSN
TiN + ZrN + (Ti,Zr)N + AlN
0
Toxic ions released
Al³⁺ · V⁵⁺ · Co²⁺ — all absent
22
Patent claims · PCT/EPO/USPTO
Continuation WO2018100251A1
Market Catalyst

A forced transition.
Two billion-dollar problems.

⛔ MDR 2017/745 — Effective 27 May 2025
CoCrMo is banned in EU implants.
Cobalt classified CMR Category 1B (carcinogenic, mutagenic, reprotoxic) by EU Regulation CLP ATP 14. MDR 2017/745 effective May 2025 prohibits CMR substances in implantable medical devices without derogation. CoCrMo elastic modulus: 210–250 GPa — stress shielding ×7–10 vs cortical bone. 30–40% of the implant market must transition.
⚠ HIP Dependency — Ti-6Al-4V AM
Ti-6Al-4V fails below 500 MPa without HIP.
Ti-6Al-4V AM as-built: 340 MPa. With stress relief: 500 MPa. Only with HIP (+30% process cost/time): 620 MPa — still below forged 680 MPa. Al³⁺ neurotoxicity + V⁵⁺ cytotoxicity under increasing regulatory scrutiny. Module 110 GPa → stress shielding remains unresolved.
📉 Economic Impact
$43B SAM with no validated replacement.
Medical implants $19.5B + Industrial/Aerospace $23.6B (T20Z SAM). No competitor offers a pre-alloyed AM powder with >700 MPa fatigue without HIP, zero toxic ions, and full MDR compliance. T20Z fills this gap today — qualified powder, documented parameters, filed patents.
T20Z is the only answer that works simultaneously.
✓
MDR 2025 — Fully compliant
Zirconium is biologically inert (ISO 10993 Class VI). Zero Al³⁺, V⁵⁺, Co²⁺. The ZrO₂/TiO₂ composite passive film seals the matrix — no ionic release under physiological conditions.
⚡
>750 MPa without HIP — process advantage
Unique basketweave microstructure with fatigue ratio 0.76. Eliminates HIP post-processing — direct cost saving for manufacturers. Drop-in for existing SLM equipment.
🛡
FTO 97.5/100 — $80–120M to bypass
22-claim patent application. PCT/EPO/INPI/USPTO. Continuation of granted WO2018100251A1. The only AM T20Z family claimed. Competitors need 12–15 years to work around.
🔁
UNImelt recycling — circular economy
Claim 17: requalify out-of-spec Ti-6Al-4V recycled powder into T20Z by adding elemental Zr in plasma. Converts manufacturing waste into premium alloy. ROI for AM manufacturers.
Technical Superiority

T20Z vs the field.
Every dimension.

Evidence-based comparison against the two incumbent materials. Sources: 12 independent peer-reviewed publications + ZTM-T20Z-2026 patent.

Property T20Z — Ti-20Zr-6.5Al-4V Ti-6Al-4V (Grade 5/ELI) CoCrMo (ASTM F75)
HCF Fatigue AM — without HIP (10⁷ cycles) >750 MPa ✓ 340 MPa as-built · 620 MPa+HIP N/A (AM not standard)
HCF Fatigue — conventional (10⁷ cycles) 775 MPa (basketweave · ratio 0.76) 620–680 MPa 500–600 MPa
Ultimate tensile strength Rm 1 100 – 1 317 MPa 780 – 1 000 MPa 1 000 – 1 250 MPa
Yield strength Rp0.2 (compression aged) 1 234 – 1 288 MPa 825 – 970 MPa —
Elastic modulus E — bulk ~144 GPa (bulk) · 20–40 GPa (lattice AM) 110–114 GPa 210–250 GPa
Elastic modulus — optimized potential 50–80 GPa (crystal + AM porosity) Not achievable Not applicable
Surface hardness after LSN 750–916 HV · 14.6–19.1 GPa · COF 0.12–0.16 ~350 HV ~450 HV
Corrosion resistance vs Ti-6Al-4V ×26 (ZrO₂/TiO₂ composite passive film) Reference Ion release (Co²⁺) — toxic
Ionic toxicity None — Zr biologically inert Al³⁺ (neurotoxic) · V⁵⁺ (cytotoxic) Co²⁺ — CMR Category 1B
EU MDR 2017/745 (2025) ✓ FULLY COMPLIANT Compliant (under scrutiny) ⛔ BANNED since May 2025
HIP required for full properties NO — direct advantage YES — +30% cost/time N/A
hcp → fcc safety phase YES — catastrophic fracture protection No No
Patent protection (AM) ZTM-T20Z-2026 — 22 claims · PCT/EPO/USPTO Public domain Public domain
Scientific Evidence

12 independent publications.
Unmatched evidence base.

No competitor alloy in the Ti-Al-V-Zr AM family has comparable published validation depth. All key properties are sourced from peer-reviewed journals.

Fatigue — High Cycle
775
MPa at 10⁷ cycles — conventional forging
Basketweave lamellaire microstructure. Fatigue ratio 0.76 — highest documented in the Ti-Al-V-Zr system. AM target: >750 MPa without HIP.
Yue et al. · Mater. Sci. Technol. 2016 · J. Alloys Compd. 2017
Mechanical Strength
1 317
MPa ultimate tensile strength
σ_b = 1,317 MPa, δ = 8% (Liang et al. 2012). Rp0.2 compression aged: up to 1,288 MPa (Jing et al. 2013). Surpasses all Ti-6Al-4V variants.
Liang et al. · MSE-A 2012 · Jing et al. · MSE-A 2013
Corrosion Resistance
×26
vs Ti-6Al-4V in inflammatory medium
ZrO₂/TiO₂ composite passive film — single capacitive Nyquist loop (uniform, pore-free). Spontaneous passivation. OCP shifts to noble values with annealing temperature.
Xia et al. · Corros. Sci. 112 (2016) 687–695
Surface Engineering — LSN
19.1
GPa surface hardness · COF 0.12
Laser Surface Nitriding generates TiN + ZrN + (Ti,Zr)N + AlN composite dendrites. ×7 hardness increase vs substrate. COF 0.12–0.16. ZrN: exceptional high-T stability + irradiation tolerance.
Zhong et al. · Surf. Topogr. Metrol. Prop. 8 (2020) 025010
Biocompatibility
+↑
Osteoblast proliferation MC3T3-E1
In vitro MTT + CCK-8: osteoblast proliferation significantly improved on Zr-modified Ti surfaces. Adhesion capacity increases proportionally with culture time. No pathological morphology.
Zhang et al. · Surf. Coat. Technol. 356 (2018)
Phase FCC — Safety Mechanism
fcc
hcp → fcc catastrophic fracture shield
10–200 nm fcc-Ti nanoplatelets under extreme deformation. Shockley partial dislocations absorb impact energy. Perfect hcp dislocations traverse fcc zones transparently — prevents brittle fracture.
Jing R. et al. · J. Alloys Compd. 552 (2013) 202–209
Why It Works

Six reinforcement
mechanisms — none in Ti-6Al-4V.

MECHANISM 01
Dislocation pile-up at α/β interfaces
Zr modifies the stacking fault energy of the β phase, promoting planar dislocation sub-structures at α/β interfaces. Hall-Petch nanoscale barrier to fatigue microcrack propagation.
Prior-β grain refinement: ×10 vs Ti-6Al-4V AMed
MECHANISM 02
Basketweave fine acicular α laths
AM solidification generates columnar β grains with fine α laths (0.3–1.5 µm) in multiple Burgers orientation variants. Every α/β interface deflects and bifurcates fatigue cracks.
Fatigue ratio 0.76 · Basketweave > bimodal (0.67) > equiaxed
MECHANISM 03
Orthorhombic α″ martensite (Cmcm)
Zr promotes formation of orthorhombic α″ martensite alongside hexagonal α′. Aging decomposition multiplies blocking interfaces. α″ fraction ≥10 vol.% (Claim 5, USPTO provisional).
Crack nucleation: pyramidal {11-22}⟨11-23⟩ slip system
MECHANISM 04
Endogenous ZrO₂ in situ AM
During SLM fusion (>1668°C), Zr migrates to melt surface via Marangoni convection. ΔH°f(ZrO₂) = −1092 kJ/mol — preferentially oxidizes before Ti. Dense ZrO₂/TiO₂ network locked at α/β interfaces.
Direct link to family ZTi-Powder (WO2018100251A1)
MECHANISM 05
Solid solution strengthening by Zr
Zr atomic radius (0.160 nm) > Ti (0.147 nm) — greater elastic lattice distortion than V (0.135 nm) or Nb (0.146 nm). Reinforces metastable β solid solution. CRSS β: 0.24 GPa (α deforms first at 0.12–0.15 GPa).
σ0.2 >950 MPa · Rp0.2 1000–1246 MPa (traction)
MECHANISM 06 ★ NEW
hcp → fcc safety transformation
Under extreme deformation, hcp-Ti transforms to fcc-Ti nanoplatelets (10–200 nm) via Shockley partial dislocations (BB intermediate state). Perfect hcp dislocations traverse fcc zones transparently — absorbs impact energy without brittle fracture.
Hip femoral stem: protection against catastrophic fall fracture
Market Coverage

One alloy family.
Four markets.

The Ti-6Al-4V-(10–35)Zr family (Claims 1–16) covers medical, aerospace, defense, and circular economy applications under one umbrella patent.

Orthopedic & Dental Implants
Hip femoral stems (CoCrMo replacement), spinal implants (via Addium/4WEB ASTM F2077-18 validated), dental implants. Functional gradient design: dense core (Rm >1300 MPa) + porous surface (E 50–80 GPa) = stress shielding eliminated + optimal osseointegration. LSN surface: 916 HV, COF 0.12 — fretting-corrosion solved. Zero Al³⁺/V⁵⁺/Co²⁺. Full MDR 2025 compliance.
E: 50–80 GPa Fatigue: >750 MPa MDR Compliant ✓ CoCrMo Replacement
Compressor Blades & Structural Parts
Ti-15Zr variant (Example 2, USPTO): ≥600 MPa HCF without HIP — equivalent to Ti-6Al-4V AM+HIP, without the process. AM compressor blades (Safran, MBDA targets). Topologically optimized structures at reduced weight. Drop-in for existing Ti-6Al-4V AM equipment — no process re-certification required for powder substitution.
Ti-15Zr variant ≥600 MPa no HIP Safran / MBDA target Drop-in powder
High-Performance Structural Components
T20Z + LSN: surface hardness 916 HV, COF 0.12, ZrN exceptional irradiation tolerance. Marine applications: ×26 corrosion resistance in saline environment. High-frequency cyclic loading (valves, connectors). Ti-25/30Zr variants for extreme tribology. Covered by Claim 14 USPTO provisional: valves, marine components.
ZrN irrad. tolerance Marine ×26 Ti-25/30Zr variants
Ti-6Al-4V Recycling — UNImelt
Claim 17 (USPTO Provisional): requalify out-of-spec Ti-6Al-4V recycled powder into T20Z by adding elemental Zr in UNImelt or PA plasma atomization. Converts AM manufacturing waste into a premium alloy conforming to Claims 7–9. Direct ROI for AM powder manufacturers. Unique IP position with no equivalent claim filed globally.
Claim 17 USPTO UNImelt process Waste → premium Zero equivalent claim
Intellectual Property

22 claims.
One family. Zero gap.

The only patent application covering the Ti-6Al-4V-(10–35)Zr alloy family for additive manufacturing. Continuation of ZTi-Powder (WO2018100251A1 — granted US, EU, India). FTO 97.5/100.

ZTi-Powder Platform IP Stack
Layer 0
β Ti-Nb-Zr Pre-Alloyed Powder Production
ZTM-POWDER-PROD-2026
Filed 2026
Layer 1
ZTi-Powder — Ti/Ti-64 + exogenous ZrO₂ AM
WO2018100251A1 · EP3548210B1 · US11827960
✓ Granted US · EU · India
1b ★
PRESENT
T20Z — Ti-6Al-4V-(10–35)Zr · 22 Claims + Nitriding
ZTM-T20Z-2026 · PCT / EPO / INPI / USPTO Provisional
Filing in progress · Continuation WO2018100251A1
Layer 2
ZTi-Med — ZTM14N (Ti-19Nb-14Zr)
WO2017137671A1 · EP3416769B1 · US11173549
✓ Granted US · EU · India
Layer 3
DNA-Implant® — SLM Auto-Locking Dental
EP3547953B1 · US12310815B2
✓ Granted US May 2025 · EU
FTO ASSESSMENT
97.5
/100 FTO Score
$80–120M
Cost to bypass · 12–15 years
T20Z — 22 Claims Summary (ZTM-T20Z-2026)
C1–C2
Core alloy Ti-(5.5–6.75)Al-(3.5–4.5)V-(10–35)Zr by AM, HCF >600 MPa no HIP. T20Z nominal composition.
C3–C4
Optional quinary additions Nb/Mo/Ta/Si/Sn. Interstitial limits O≤0.20%, C≤0.08%.
C5–C6
Basketweave microstructure · α laths 0.3–1.5 µm · α″ ≥10 vol.% · σ_b ≥1000 MPa · δ≥6%.
C7–C9
Pre-alloyed powder EIGA/PA/PREP/VIGA/UNImelt. SLM spec (D50 30–55 µm) + EBM spec (D50 75–120 µm).
C10–C12
Full AM manufacturing process. SLM: layer 20–50 µm, Ev 50–120 J/mm³. Claim 12: WITHOUT HIP.
C13–C15
Finished part ≥700 MPa HCF. Applications: ortho/dental/turbomachine/aero/valves. Substitute for Ti-6Al-4V without HIP.
C16
Biomedical substitute for CoCrMo. ZrO₂/TiO₂ passivation + nitriding to 916 HV.
C17
Recycling out-of-spec Ti-6Al-4V powder → T20Z via UNImelt+Zr. UNIQUE
C18
Computer program for AM parameter optimization as function of Zr content x.
C19–C20
Surface hardened part 380→916 HV gradient (TiN+ZrN+AlN). Gas nitriding 500–650°C, 40–50 µm layer. NEW
C21
Laser nitriding LSN: 150–3000 W, 100–2000 mm/s, N₂ 0.1–2 bar, 750–916 HV. NEW
C22
Femtosecond laser (1fs–1ps, 0.5–5 µJ): <10 µm layer, no microcracks — for finished implants. NEW
Investment Case

Why T20Z.
Why now.

Three converging market forces create a once-in-a-decade window. T20Z is positioned at the intersection of all three.

Medical SAM
$19.5B
Implant market in forced transition
CoCrMo ban (MDR May 2025) forces 30–40% market migration. No validated AM alternative with T20Z's combined profile. Hip + spine + dental convergence in one material.
Industrial + Aerospace SAM
$23.6B
Aerospace + defense AM upgrade path
Ti-15Zr (Example 2): >600 MPa without HIP = Ti64 AM+HIP performance at lower process cost. MBDA, Safran target profile. Drop-in for existing equipment.
Circular Economy SAM
$10B+
Recycled Ti-64 → premium T20Z
Claim 17 (UNImelt): converts out-of-spec Ti-6Al-4V waste into T20Z. Unique claim globally. Growing €bn Ti64 recycling market. No equivalent IP filed by any competitor.
Critical Path — 2026–2028
✓ Mai 2026
EIGA qualified powder · ZTM-T20Z-2026 provisional filed · FTO 97.5/100
DONE
Q4 2026
PCT AGIS rev3 (34 claims) + DIV-04 TNZTa · non-provisional conversion T20Z
URGENT
Q1 2027
EPO grant ZTM-T20Z-2026 · peer-reviewed publication CNN Module 2 AGIS
PLANNED
Q2 2027
FDA 510k spine submission via Addium/4WEB (ASTM F2077-18 validated)
PLANNED
2028
CE MDR · Commercial launch EU · Licensing T20Z powder + AM parameters
TARGET
Why the Defensive Moat is Exceptional
FTO Score
97.5/100 — competitor needs $80–120M and 12–15 years to bypass the IP family
IP Gap
No competitor has claimed Ti-6Al-4V-(10–35)Zr as pre-alloyed AM powder — the gap is real and documented
Pub Base
12 independent publications validate properties — due diligence-ready, no black-box claims
Powder
EIGA-qualified powder available today (TLS Technik GmbH cert. LS 80005253) — no development risk on material production
Recycling
Claim 17 (UNImelt recycling) is a completely unique market position with no competitor equivalent claim filed
12 Independent Peer-Reviewed Publications
[01–02]
Yue Y. et al. — Mater. Sci. Technol. (2016) + J. Alloys Compd. 696 (2017) — HCF fatigue basketweave T20Z — mechanism + dislocation pile-up
>775 MPa · 10⁷
[03]
Liang S.X. et al. — Mater. Sci. Eng. A 539 (2012) — Ultra-high strength ZrTiAlV alloy preparation
σb 1317 MPa · δ 8%
[04]
Jing R. et al. — Mater. Sci. Eng. A 559 (2013) — Aging effects Ti-20Zr-6.5Al-4V microstructures
Rp0.2 1288 MPa
[05–07]
Tan Y.B. et al. (2013, 2014) · Yin B. et al. (2016) · Liang S.X. et al. Mater. Des. 99 (2016) — Hot deformation, grain growth kinetics, martensitic inhibition
Optimal: 986°C
[08]
Zhong H. et al. — Surf. Topogr.: Metrol. Prop. 8 (2020) — Tribological performance + LSN T20Z
19.1 GPa · COF 0.12
[09]
Xia C. et al. — Corros. Sci. 112 (2016) 687–695 — Zr content effect on corrosion Ti-6Al-4V-xZr
×26 vs Ti64
[10]
Zhang X. et al. — Surf. Coat. Technol. 356 (2018) — Zr addition tribology + osteoblast MC3T3-E1 proliferation
Cell growth ↑↑
[11–12]
Jing R. et al. — J. Alloys Compd. 552 (2013) · Tan Y.B. et al. — MSE-A 577 (2013) — FCC Ti formation mechanism + hot deformation coarse grain
hcp→fcc · Safety
ZTi-Technologies Holding · Confidential Investor Document

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STRICTLY CONFIDENTIAL · ZTi-Technologies Holding · Chaumontel (95), France · ZTM-T20Z-2026 · May 2026
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