็How to plate copper on Hastelloy?

[ZartPARZ]

Hi,

I'm a student working with an electron accelerator and has very limit knowledge about electroplating. One of my accelerator's part is bad and I have to fix it. It is a small Hastelloy C-276 piece (~10 sq.cm) that must be plated with copper on one side to increase conductivity. However, no matter how the plated copper and striked-nickle always peel off. So, I would like to ask if someone has experience in plating Hastelloy C-276.

The plating I've done is the following :
First put Hastelloy in HCl 36% for a few minutes then rinse in distrilled water. Next, stike it in nickel chloride bath at 55 degree C for 2-4 minutes then rinse in distrilled water. Then plate it in acid copper bath at 28 degree C for 15-20 minute at low current density.

I know from my friend that my nickel anode is a low grade one.

Moreover, I'm interesting in Plug N' Plate kit to fix some specific spot on my machine. My question is that is the plated copper can survive a few megawatt microwave?

Thanks in advance.
ZartPARZ.

[ZartPARZ]

For the information about Hastelloy C-276 you can find it at

Haynes International, Inc.

Briefly, it is a nickel alloy contain Cr and Mo.

[lcaswell]

Originally Posted by ZartPARZ

Hi,

I'm a student working with an electron accelerator and has very limit knowledge about electroplating. One of my accelerator's part is bad and I have to fix it. It is a small Hastelloy C-276 piece (~10 sq.cm) that must be plated with copper on one side to increase conductivity. However, no matter how the plated copper and striked-nickle always peel off. So, I would like to ask if someone has experience in plating Hastelloy C-276.

The plating I've done is the following :
First put Hastelloy in HCl 36% for a few minutes then rinse in distrilled water. Next, stike it in nickel chloride bath at 55 degree C for 2-4 minutes then rinse in distrilled water. Then plate it in acid copper bath at 28 degree C for 15-20 minute at low current density.

I know from my friend that my nickel anode is a low grade one.

Moreover, I'm interesting in Plug N' Plate kit to fix some specific spot on my machine. My question is that is the plated copper can survive a few megawatt microwave?

Thanks in advance.
ZartPARZ.

I'm sure no-one here has any experience plating onto those alloys - but I would try to reverse plate the part for a few seconds in the HCL solution to etch the chrome before applying the nickel chloride strike.