OTHER ETCHANTS

For cobalt and Co-Al alloys:

• Adler’s reagent

For magnesium and Mg-Mn, Mg-Al, Mg-Al-Zn, Mg-Zn-Zr alloys:

• Nital Etch, 2%

For pure nickel and high nickel alloys:

• Marble’s reagent (aggressive)

For refractory metals:

• Murakami’s reagent (Cr, Mo, Re, Ta-Mo, W, V, WC-Co, and sintered carbides)

For Ni-Ti Nitinol alloy:

• ASTM 151

For T22/P22 steel replica:

• Nital Etch, 5%

For T91/P91 steel replica:

• Vilella’s Reagent