Ｉｎｖａｒ合金一瞥通常称之为殷钢的Ｎｉ－Ｆｅ合金Ｉｎｖａｒ，从其面世至今整整经过了１００年。由于它的热膨胀系数极低，所以又被叫做不胀钢。Ｉｎｖａｒ具有良好的轧制性能和可焊接性，机加工性能与奥氏体钢相近，但应力腐蚀抗力较差。Ｉｎｖａｒ的现代应用主要有两... At a Glance Invar Alloy Invar, commonly known as Invar, is a full 100 years after its introduction. Because of its very low coefficient of thermal expansion, it is also called non-expansion steel. Invar has good rolling properties and weldability, machinability and austenitic steel similar, but the stress corrosion resistance is poor. Invar’s modern application has two main ...