Pure Molybdenum and Molybdenum Alloy

Well, today, I get a good artical from the book which mainly introduce the differences between pure molybdenum, TZM alloy(titanium-zirconium-molybdenum), MHC alloy(molybdenum-hafnium-carbon), MLa alloy(molybdenum-lanthanum-alloy), MY alloy(molybdenum-yttrium-alloy), MW alloy(molybdenum-tungsten-alloy), MCu alloy(molybdenum-copper-alloy) in its content, properties and applications. By reading, I have a better understanding in their about them. Here, I am glad to share it with you.

Content:

Name	Ingredients (%)
	W	Ti	Zr	C	La2O3	Y2O3	Hf	Cu
Mo
TZM		0.40~0.55	0.06~0.12	0.01~0.04		0.08~0.14
MHC				0.04~0.12
ML					0.2~3.0
MY						0.2~0.8
MW	20~50
MCu								0.3~30.0

Properties:

1. Pure Molybdenum Properties:

High melting point and high elastic modulus;

Low and resistor and vapor pressure;

Good heat resistance, thermal conductivity and thermal expansion coefficient

2. TZM　Alloy(Titanium-Zirconium-Molybdenum)

Compared with pure molybdenum, TZM  alloy has following advantages:

Better heat resistance;

Higher recrystallization temperature;

Good creep resistance and weldability

3. MHC Alloy(Molybdenum-Hafnium-Carbon)

MHC alloy has the following advantages  which compared with TZM alloy :

Better creep resistance;

Higher heat resistance and recrystallization temperature

4.MLa Alloy(Molybdenum-Llanthanum)

MLa alloy compared with pure molybdenum has the following advantages:

Better creep resistance and welding performance;

Higher recrystallization temperature;

Good plasticity after high temperature used

5.  MY Alloy(Molybdenum-Yttrium)

MY alloy compared with pure molybdenum has the following advantages:

Better oxidation resistance;

Higher recrystallization temperature;

Good weldability;

Good adhesion with glass sealing

6.MW Alloy(Molybdenum-Tungsten)

MW alloy compared to pure molybdenum alloy has the following advantages:

Good resistance to molten metal corrosion resistance;

Higher recrystallization temperature and strength

7.MCu Alloy(Molybdenum-Copper)

MCu alloy has the following advantages:

Good thermal conductivity and thermal expansion

Applications:

Name	Nominal Composition (wt%)	Applications
Pure Molybdenum	99.95Mo	Vacuum furnaces, glass melting, electronic devices, heat sink
TZM	0.5Ti, O.08Zr, 0.03C	Thermal processing tools, stoves installed appliances
MHC	1 ~ 1.5Hf, 0.03 ~ 0.05C	Hot work tool
Mo-W	10 ~ 30W	Molten zinc treatment, sputtering target
Mo-Re	41 ~ 47.5Re	Traveling wave tubes, rocket boosters
Mo-La	0.5-1.5La (La2O3 state was near)	Sintering boat