The CuCrFeNiMn（S1）

CuCr

2

Fe

2

Ni

2

Mn

2

（S2）and Cu

2

CrFe

2

NiMn

2

（S3） high entropy alloys were prepared by arc melting process.The microstructure and corrosion resistance of the alloys prepared were investigated.The results show that the S1 and S3 alloys are composed of simple face centered cubic solid solution and body centerd cubic solid solution（FCC1+FCC2+BCC）

while the S2 alloy consists of single face centered cubic solid solution（FCC1+FCC2）.In 1 mol/L NaOH solution

the average corrosion rates of S1

S2

and S3 reach 0.078

0.04 and 0.119 mm/a in immersion testing

respectively

and the average corrosion rate of S1

S2

and S3 reach 7.2×10

-7

2.8×10

-7

and 3.4×10

-6

mm/a in polarization corrosion testing

respectively.The S2 alloy shows an excellent alkali-resistance because of simple FCC solid solution and high content of Cr and Ni.