Aloha, fun & authoritative answers -- no cost, no registration, no passwords, no popups
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Where the
world gathers for metal finishing
Q&As since 1989

-----

Intergranular and transgranular crack in 17-4PH

I have a bolt (17-4 PH) whose the initial failure was intergranular fracture surface and, in sequence, changed by intergranular fracture surface. I know that the hidrogen embrittlement can proportionate failure similar to this but in inverse order (transgranular to intergranular), I really don't know. Someone can help me? Thanks.

Renato Maia
Material analysis - São José dos Campos, SP, Brasil
2005

could you tell wether the bolt developed crack in service or it was there prior to forging. secondly if you could tell the %C and % Cr in it, I could be of some help to you.

Er Manuj Kaushesh
- solan, H.P, India
2005

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: