In February 2020, the Institute of Metal Sciences of the Chinese Academy of Sciences and AHYL Advanced Metal Materials Technology Group held the signing ceremony of the strategic cooperation agreement on "transformation, promotion and application of achievements in high energy absorbing alloys-high manganese high strength and toughness alloys", marking that the cooperation in high energy absorbing alloys high manganese high strength and toughness alloys has entered a substantial stage of advancement.
In December 2021, the production line of high energy absorbing alloy-high manganese high strength and toughness alloy was completed and put into operation, and the commercial production of high energy absorbing alloy high manganese high strength and toughness alloy was successfully achieved.
High energy absorbing alloy – high manganese high strength and toughness alloy is a new type of high energy absorbing alloy – high manganese high strength and toughness alloy independently developed by the Institute of Metal Sciences of the Chinese Academy of Sciences to meet the demand of the"core materials for landing buffer system" for lunar soft landing of Chinese lunar exploration spacecraft.
High energy absorbing alloy-high manganese high strength and toughness alloy has high tensile plasticity, moderate tensile strength and stable mechanical response behavior, which has successfully guaranteed the smooth soft landing of "Chang'e 3" (2013) and "Chang'e 4" (2019) probes on the lunar surface.
The research team has mastered the research and development technology and intellectual property rights of the whole process of design, smelting, cold and hot processing of high energy absorbing alloy-high manganese high strength and toughness alloy, and its comprehensive indicators such as strength and toughness have reached the world's advanced level.
High energy absorbing alloy – High manganese high strength and toughness alloy has excellent properties such as high strength, high energy absorption, low density, no low-temperature ductile brittle transition, and high fatigue resistance, making it have very important application prospects in fields such as explosion-proof tanks, collision barriers, pressure resistant shells, offshore platform steel, automotive steel, military aircraft, rocket fuel pipes, impact resistant armor plates, and bridge shock absorption.
Main technical indicators (or parameters):
Tensile strength: 550-1600 MPa
Plasticity: 30-110%
Low permeability: 1.262 × 10-6
No low-temperature ductile brittle transition temperature
At the same time, it helped Chang'e 3 soft landing on the moon and Chang'e-4 soft landing on the back of the moon. As the only landing buffer material for the Mars probe "Tianwen I", it continued to make key and important contributions to China's space industry.
AHYL is a leading high-temperature alloy material technology supplier in China, and one of the few leading enterprises in China's high-end equipment core component industry with international manufacturing qualifications for nuclear power and aviation products. Its products are applied in high-end equipment fields such as aerospace, nuclear energy, oil and gas.
In the aviation field, AHYL has included the directional single crystal blades of aviation engines in a national key project and completed the research and production task of domestic aviation engine high-temperature alloy blades.
In the field of nuclear energy, AHYL has developed the first domestically produced nuclear island primary main pump casing and nuclear primary rupture valve, breaking foreign monopolies;
The developed nuclear island main equipment, national defense nuclear power metal insulation layer, nuclear fuel grid, neutron absorption material, and gamma ray shielding material have reached international advanced levels, breaking through key material bottlenecks.