Titanium Molybdenum Alloy Powders

Table of Contents

titanium molybdenum alloy powders enhance high-temperature strength and creep resistance for lightweight aerospace designs. This guide reviews TiMo alloy powder compositions, key characteristics, production methods, suitable applications, specifications, purchasing considerations, supplier comparisons, and pros/cons.

titanium molybdenum alloy powders Typical Composition

Alloy GradeTitanium (%)Molybdenum (%)
Ti-6Al-7Nb (IMI 550)Balance7%
Ti-11.5Mo-6Zr-4.5Sn (Ti-11)Balance11.5%

Molybdenum levels between 7% and 15% effective for high-temperature strengthening. Other elements like niobium, zirconium, and tin further boost creep properties.

titanium molybdenum alloy powders

Characteristics and Properties

Particle shapeSpherical from inert gas atomization
Oxygen ppmBelow 500 ppm
Typical density4.5 g/cc
Thermal conductivity4-6 W/mK
High temperature strength100 MPa at 500°C
Corrosion resistanceForms protective TiO2 film

Particulate nature, low oxygen content and tailored compositions suit alloy powder for additive manufacturing or sintering high performance components.

Production Methods

MethodProcess Description
Gas atomizationInert gas disintegrates molten alloy stream into powder
Plasma atomizationVery clean but lower powder output vs gas atomization
PREPSpheroidization of existing powders by remelting
Hydride-dehydrideBrittle TiH2 intermediate for comminution

Plasma and gas atomization offer the best quality while being more expensive vs secondary routes like PREP and HDH.

Applications of TiMo Alloy Powder

IndustryComponent Examples
AerospaceTurbine blades, casings, landing gears
Power generationHeat exchangers, steam piping
Chemical processingBioreactors, reaction vessels
MarinePropeller shafts, sonar domes
Oil and gas drillingGeothermal well tools and shafts

Combination of high strength, low weight and corrosion resistance suits TiMo alloys with demanding environments like aircraft engines or offshore drilling.


StandardGrades Covered
ASTM B862Ti-6Al-2Sn-4Zr-6Mo, Ti-8Al-1Mo-1V, Ti-6Al-2Nb-1Ta-0.8Mo
ASTM B348Titanium and titanium alloy bars and billets
AIMS 04-18Standard for AM titanium parts

AMPM (American Powder Metallurgy) Institute, IPS (International Powder Metallurgy Standards Organization) also cover various Ti grades.

Global Suppliers and Price Range

CompanyLead TimePricing
TLS Technik16 weeks$300 – $900/kg
Sandvik12 weeks$350 – $1000/kg
Atlantic Equipment14 weeks$320 – $850/kg

Pricing for 100+ kg batch. Premium for low oxygen and spherical powder. Larger quantities above 500 kg offer 20%+ discounts.

Pros vs Cons

Excellent high temperature strengthHigh raw material costs
Corrosion resistant in many environmentsLonger lead times for custom alloys
Custom alloy design flexibilityLimited global supply chain presently
Compatible with powder AM methodsPost-processing often needed after AM
Excellent creep resistanceStringent requirements on oxygen/nitrogen

TiMo powders enable new component designs and lightweight construction but using titanium alloys poses unique powder manufacturing and handling challenges.

titanium molybdenum alloy powders


What particle size range is optimal for binder jet 3D printing?

Around 30 to 50 microns facilitates higher powder bed density and efficient liquid saturation needed to bind layers properly. Too fine powders hurt performance.

What causes contamination during Ti alloy gas atomization?

Oxygen pickup from any air leaks degrades powder purity hence the need for stringent process controls. Furnace parting agents and melt crucibles are other contamination sources requiring high purity consumables.

Why is high Mo content difficult to achieve in Ti based alloys?

Excessive evaporation losses of molybdenum occur above 25% levels during vacuum induction melting and subsequent remelting steps. Mitigation measures include covering melt pools or using cold crucible techniques.

How should titanium powder be stored?

Inside sealed containers under inert cover gas or vacuum. Handled and stored to exclude moisture absorption which causes decrepitation and high osyggen or nitrogen impurity.

What are common defects when AM printing titanium alloys?

Porosity from trapped gas atoms, lack of fusion defects, residual stress cracking, unfused powder trapped inside enclosed volumes. Require integrated parameters optimisation accounting for scan strategy, energy input etc.


In summary, titanium molybdenum alloy powders provide customized high temperature properties and corrosion resistance vital for producing next generation components across aerospace, energy and other demanding industries via powder metallurgy or additive manufacturing.

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