Corrosion and heat resistant metal alloy for molding die and a die therewith

A corrosion resistant and heat resistant molding die alloy comprising an amorphous phase, comprising:

• more than 34 atomic percent and less than 93 atomic percent of Pt,
• more than 5 atomic percent and less than 60 atomic percent of Si, and
• more than 0 atomic percent and less than 60 atomic percent of Ni, and comprising Pt the most and Ni the least of Pt, Si and Ni.

A corrosion resistant and heat resistant molding die alloy comprising an amorphous phase, comprising:

• more than 34 atomic percent and less than 93 atomic percent of Pt,
• more than 5 atomic percent and less than 60 atomic percent of Si, and
• more than 0 atomic percent and less than 60 atomic percent of Ru, and comprising Pt the most and Ru the least of Pt, Si and Ru.

A die for molding optical devices comprising corrosion resistant and heat resistant alloy comprising an amorphous phase at least at a surface portion of the die, the alloy comprising:

• more than 34 atomic percent and less than 93 atomic percent of Pt,
• more than 5 atomic percent and less than 60 atomic percent of Si, and
• more than 0 atomic percent and less than 60 atomic percent of Al, and comprising Pt the most and Al the least of Pt, Si and Al.

A die for molding optical devices comprising corrosion resistant and heat resistant alloy comprising an amorphous phase at least at a surface portion of the die, the alloy comprising:

• more than 34 atomic percent and less than 93 atomic percent of Pt,
• more than 5 atomic percent and less than 60 atomic percent of Si, and
• more than 0 atomic percent and less than 60 atomic percent of Ni, and comprising Pt the most and Ni the least of Pt, Si and Ni.

A die for molding optical devices comprising corrosion resistant and heat resistant alloy comprising an amorphous phase at least at a surface portion of the die, the alloy comprising:

• more than 34 atomic percent and less than 93 atomic percent of Pt,
• more than 5 atomic percent and less than 60 atomic percent of Si, and
• more than 0 atomic percent and less than 60 atomic percent of Ru, and comprising Pt the most and Ru the least of Pt, Si and Ru.