Alloy ML11
Designation
| Name |
The value |
| Designation GOST Cyrillic |
МЛ11 |
| Designation GOST Latin |
ML11 |
| Transliteration |
ML11 |
| The chemical elements |
CuЛ11 |
Description
ML11 alloy used: for the manufacture of castings parts that require high containment and experiencing high loads with maximum working temperature of +250 °C — long, +300 °C short — term.
Note
High-temperature alloy system MD-REE-Zr. For alloying of the alloy of the rare earth metals cerium mischmetal used (75% Se and 25% other REE cerium group). The alloy contains also supplements of zinc and zirconium.
ML11 alloy doped by zeraphim a Misch metal, has lower mechanical properties at room temperature. Its technological and casting properties are close alloys with neodymium, the castings have high integrity.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 2856-79 |
| Castings from non-ferrous metals and alloys |
В84 |
OST 1 90248-77 |
Chemical composition
| Standard |
Si |
Ni |
Fe |
Cu |
Al |
Zn |
Zr |
Mg |
Be |
| GOST 2856-79 |
≤0.03 |
≤0.005 |
≤0.02 |
≤0.03 |
≤0.02 |
0.2-0.7 |
0.4-1 |
The rest |
≤0.001 |
Mg is the basis.
According to GOST 2856-79 the sum of REM should be within the range of 2.50-4.00%. The content of other impurities is ≤ 0.12%, the sum of detectable impurities is 0.20%.
Mechanical characteristics
| Section, mm |
sT|s0,2, MPa |
σB, MPa |
d5, % |
| Casting in sand, shell, investment casting and plaster mold and chill casting GOST 2856-79. Without heat treatment |
|
≥70 |
≥120 |
≥1.5 |
| Casting in sand, shell, investment casting and plaster mold and chill casting GOST 2856-79. Mode T2: Annealing |
|
≥70 |
≥120 |
≥1.5 |
| Casting in sand, shell, investment casting and plaster mold and chill casting GOST 2856-79. Mode T4: Homogenization + annealing in air |
|
≥85 |
≥140 |
≥3 |
| Casting in sand, shell, investment casting and plaster mold and chill casting GOST 2856-79. T6 mode: Homogenization + annealing at air + aging |
|
≥100 |
≥140 |
≥2 |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σB |
Limit short-term strength |
| d5 |
Elongation after rupture |