Material Introduction

MHC Molybdenum Alloy

Material Introduction


The main component of MHC molybdenum alloys is Mo-(0.5-1.3)%Hf-(0.05-0.12)%C; that is, Hf and C elements are added to pure molybdenum. The recrystallization temperature and creep properties of molybdenum alloys are thus significantly improved by solid solution strengthening and second phase particle strengthening.

Specifications and Performance


Material

Bar (mm)

Plate (mm)

MHC

Φ 1~150

0.5~50

 

Material

Tensile strength at room temperature/MPa

Elongation at room temperature

Tensile strength at 1000°C

1000℃ elongation

MHC molybdenum alloy

800

20%

500

20%

Notes

30mm diameter bar

Fabrication Process


By means of molybdenum alloy powder preparation, isostatic pressing, high-temperature sintering, and thermal deformation processing, MHC molybdenum alloys have a density which is close to the theoretical density, thus ensuring optimal high-temperature performance.

 

 

Advantage


Due to the solid solution strengthening and dispersion strengthening of the alloying element Hf, MHC molybdenum alloys greatly improve the high-temperature mechanical properties and recrystallization temperature of pure molybdenum. Due to the uniform distribution of ultrafine carbides, the material still exhibits excellent heat resistance and creep resistance at a temperature of 1,550°C, and the recommended maximum operating temperature is also 150°C higher than TZM. For example, when used in extrusion dies, it is able to withstand extreme thermal and mechanical loads. MHC materials are therefore recommended for metal forming applications.