Home About us Contact
|
Home About us Contact | ||
|
|
||
H13 Tool Steel (h13 + tool_steel)
Selected AbstractsEffect of Carbon on the Compound Layer Properties of AISI H13 Tool Steel in Pulsed Plasma NitrocarburizingPLASMA PROCESSES AND POLYMERS, Issue S1 2007Rodrigo L. O. Basso Abstract Due to the mechanical and inertness properties of the , -Fe2-3N phase, its formation as a compact monolayer is most wanted in plasma surface treatments of steels. This phase can be obtained by the inclusion of carbon species in the plasma. In this work, we present a systematic study of the carbon influence on the compound layer in an AISI H13 tool steel by pulsed plasma nitrocarburizing process with different gaseous ratios (0%,,,[CH4]/[N2,+,CH4,+,H2],,,4%). The plasma treatment was carried out for 5 h at 575,°C. The microstructure and phase composition of the modified layers were studied by scanning electron microscopy and X-ray diffraction, respectively. X-Ray photoelectron spectroscopy was used to measure the relative concentration of carbon and nitrogen on the surface. The hardening profile induced by the nitrocarburized process is also reported. [source] Precipitates Temperature Dependence in Ion Beam Nitrited AISI H13 Tool SteelPLASMA PROCESSES AND POLYMERS, Issue S1 2007Luiz F. Zagonel Abstract AISI H13 tool steel samples were nitrided using broad nitrogen ion beams in a high-vacuum chamber at different temperatures. At 400,°C, a thin , -Fe2-3N phase forms on the top of a shallow nitrided layer and the nitrogen distribution follows a complementary error function. At 500,°C, deviations from this behavior are observed and a thick , -Fe2-3N layer is formed. At 600,°C, no , -Fe2-3N phase is formed and the nitrogen profile is step-like. At such a temperature, coarse nitride precipitates are observed. Also, carbon losses (decarburizing) are observed upon nitriding at and above 500,°C. [source] Role of Manganes in the Soldering Reaction in Magnesium High Pressure Die Casting,ADVANCED ENGINEERING MATERIALS, Issue 12 2003C. Tang The significance of soldering in high pressure die casting (HPDC) of magnesium alloys could have a major economic impact on die casters and a study of the soldering phenomenon during HPDC of magnesium alloys has been undertaken. In this paper results of dip tests are presented involving the immersion of samples made from H13 tool steel into molten magnesium alloys with different aluminium and manganese contents. [source] Effect of Carbon on the Compound Layer Properties of AISI H13 Tool Steel in Pulsed Plasma NitrocarburizingPLASMA PROCESSES AND POLYMERS, Issue S1 2007Rodrigo L. O. Basso Abstract Due to the mechanical and inertness properties of the , -Fe2-3N phase, its formation as a compact monolayer is most wanted in plasma surface treatments of steels. This phase can be obtained by the inclusion of carbon species in the plasma. In this work, we present a systematic study of the carbon influence on the compound layer in an AISI H13 tool steel by pulsed plasma nitrocarburizing process with different gaseous ratios (0%,,,[CH4]/[N2,+,CH4,+,H2],,,4%). The plasma treatment was carried out for 5 h at 575,°C. The microstructure and phase composition of the modified layers were studied by scanning electron microscopy and X-ray diffraction, respectively. X-Ray photoelectron spectroscopy was used to measure the relative concentration of carbon and nitrogen on the surface. The hardening profile induced by the nitrocarburized process is also reported. [source] | ||||||||||