็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]

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.

[NOL4154]

Hello ZartPARZ,

First, H A S T E L L O Y C-276 alloy is a n i c k e l-m o l y b d e n u m-
c h ro m i u m w rought alloy that is generally c o n s i d e red a versatile
corro s i o n-resistant alloy.

Interesting another Hastelloy question. It appears you are your attempts are good but I need more information.

1. Are you seeing any corrision under the peel plating?
2. Is your base material seperating clean from plating?
3. Is base material adhere to the plating?

To trouble-shoot your problem, need more detail information.

Process:
1. Degrease hot 180-200F.
2. Rinse
3. Electroclean-reverse current (anodic)
4. Rinse
5. Acid dip 36 % HCl-ok but careful it does not attack the alloyed
(creating pitting-corroision)
6. Rinse
7. Woods Nickel strike
8. Rinse 2x
9. Copper strike
10. Copper buildup.

Do not understand your statement "nickel anode". You are plating nickel after copper?

Your question "survive a few megawatt microwave"?
We can deal with that later.
Write back,
Nol4154
armando4154@hotmail.com

็How to plate copper on Hastelloy?

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.