Structure And Properties Of Stainless Steel Nitride Layers Produced By Fluidised Bed And Muffle Reactors In Diffuse Step Nitriding Processes
| Main Authors: | Widi, Komang Astana, Wardana, ING, Irawan, Yudy Surya, Suprapto, Wahyono |
|---|---|
| Format: | Proceeding PeerReviewed Book |
| Bahasa: | eng |
| Terbitan: |
, 2015
|
| Subjects: | |
| Online Access: |
http://eprints.itn.ac.id/3626/1/ICOMMET.pdf http://eprints.itn.ac.id/3626/2/III.B.1.B.2.pdf http://eprints.itn.ac.id/3626/3/IMG_0006.pdf http://eprints.itn.ac.id/3626/ |
Daftar Isi:
- In manufacturing industry, high purity nitrogen gas as diffuse media nitriding treatment is highly consumptive. In this paper, diffuse media technology by muffle and fluidized bed reviewed thoroughly. Austenitic stainless steel samples were submitted to nitridation in varying conditions of atmosphere diffuse reactors. The chemical composition after those treatments were investigated by EDAX analysis. The characteristic of microstructure were studied by optical microscope, SEM and XRD. The mechanical properties were investigated by microhardness test. The effects of both reactors diffuse treatment were had analyzed. As results, samples with nitride layer by fluidized bed are more dense than that of muffle samples, and had a high hardness. Muffle diffuse nitriding treatment outer layer samples showed lower hardness but the inner layer almost similar to those of fluidized bed diffuse nitriding treatment. It is concluded that the lower of hardness is ascribe to the porosity formation as affected by nitrogen, hydrogen and chrome oxide reactions.