The Low-Pressure Rf Plasma as a Medium for Nitriding Iron and Steel

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概要

• 論文の詳細を見る

• This study compares the nitriding efficiency of a low-pressure pure-nitrogen rf plasma for the materials AISI-316 stainless steel, 99.8% iron and the low-alloy steels AISI 4140 and En41B. The process temperature was 400° C; a range of gas pressures and biasing conditions was explored. The treated samples were examined using instrumented microhardness measurements, proton backscattering, X-ray diffraction and other diagnostics. The degree of nitriding is enhanced by increased bombardment by excited neutral molecules. Ion bombardment assists in the nitriding of iron and the low-alloy steels studied, apparently by aiding the production of Fe2-3N. This phase does not form in the nitriding of 316 stainless steel, and therefore treatment of this material is not assisted by ion bombardment. In comparing low-pressure rf plasmas to procedures involving higher pressures and temperatures, the process described here is more appropriate for hardening austenitic stainless steel, but perhaps less appropriate for the other materials.

• Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
• 1997-07-30

著者

• Baldwin M.j.

  Division Of Physics And Electronics Engineering University Of New England

• Kumar S.

  Division Of Organic Chemistry Indian Institute Of Chemical Technology

• Baldwin M.

  Division of Physics and Electronics Engineering, University of New England, Armidale, N.S.W. 2351, A

• Collinss G.

  Australian Nuclear Science and Technology Organisation, Private Bag 1, Menai, N.S.W. 2234, Australia

• Fewell M.

  Division of Physics and Electronics Engineering, University of New England, Armidale, N.S.W. 2351, A

• Haydon S.

  Division of Physics and Electronics Engineering, University of New England, Armidale, N.S.W. 2351, A

• Short K.

  Australian Nuclear Science and Technology Organisation, Private Bag 1, Menai, N.S.W. 2234, Australia

• Tendys J.

  Australian Nuclear Science and Technology Organisation, Private Bag 1, Menai, N.S.W. 2234, Australia

• Tendys J.

  Australian Nuclear Science And Technology Organisation

• Fewell M.p.

  Division Of Physics And Electronics Engineering University Of New England

• Collinss G.a.

  Australian Nuclear Science And Technology Organisation

• Short K.t.

  Australian Nuclear Science And Technology Organisation

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