[MW:26338] Hardfacing on Cast Iron Glass mould

Gents,

We have to overlay a proprietory hardfacing alloy on a cast iron glass mould. We are facing a problem of porosity. All issues of cleanliness, gas shielding etc have been well taken care of.

The composition of the cast iron glass mould is as follows

  

Content	Cast Iron Specification
%	Req.	Range
C	3.55	± 0.10
Mn	0.6	± 0.10
Si	2	± 0.20
P	< 0.10	± 0.20
S	< 0.10	± 0.20
Cr	< 0.10	± 0.20
Ni	< 0.10	± 0.20
Mo	0.45	± 0.05
V	0.13	± 0.03
Ti	< 0.10	± 0.03
Ceq.	4.15	± 0.10

The composition of the hardfacing alloy is as follows 

Colmonoy 42-P2 Powder

Chemical Composition
Element	Percentage
Boron	1.64
Carbon	0.37
Cobalt	0.10
Chromium	10.00
Iron	2.48
Nickel	Balance
Silicon	3.07

Can someone suggest a solution for the porosity problem.

Thanks and Regards,

Vignesh Kumar

--
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To post to this group, send email to materials-welding@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/34b808dc-9946-49f8-9263-2cc78aba9230%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.