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Effect of Cu3P addition on sintering behaviour of elemental powders in the composition of 465 stainless steel
Institute of Powder Metallurgy, Materials Science Department, University of Science and Technology Beijing.ORCID iD: 0000-0003-4888-6237
Institute of Powder Metallurgy, Materials Science Department, University of Science and Technology Beijing.
Institute of Powder Metallurgy, Materials Science Department, University of Science and Technology Beijing.
2006 (English)In: Powder Metallurgy, ISSN 0032-5899, E-ISSN 1743-2901, Vol. 49, no 1, p. 28-33Article in journal (Refereed) Published
Abstract [en]

The addition of Cu3P for developing the high strength 465 maraging stainless steel from elemental powders was studied. The sintering parameters investigated were sintering temperature, sintering time and wt-%Cu3P. In vacuum sintering, effective sintering took place between 1300 and 1350°C. The maximum sintered density of 7·44 g cm−3 was achieved at 1350°C for 60 min with 4–6 wt-%Cu3P. More than 6 wt-%Cu3P content and temperature >1350°C caused slumping of the specimens. The sintered specimens were heat treated and a maximum ultimate tensile strength (UTS) of 767 MPa was achieved with 4 wt-%Cu3P content. The maximum hardness of 45·5 HRC was achieved in heat treated condition with 4 wt-%Cu3P content. Above 4 wt-%Cu3P content increase in density was observed whereas the response to heat treatment decreased. Fracture morphologies of the sintered specimens were also reported. A comparison of sintering behaviour and mechanical properties of elemental powders with prealloyed powders was also given in the present study

Place, publisher, year, edition, pages
2006. Vol. 49, no 1, p. 28-33
National Category
Other Materials Engineering
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-7224DOI: 10.1179/174329006X89344Local ID: 58e3b694-1f98-445f-a9cd-1e89ad0e79a0OAI: oai:DiVA.org:ltu-7224DiVA, id: diva2:980113
Note
Upprättat; 2006; 20150416 (farakh)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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