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Applying “Spark Plasma Sintering” Technology to Enhance the Resistance to Contact Fatigue of Sintered Steel Based on Astaloy CRL
| Content Provider | Scilit |
|---|---|
| Author | Rodziňák, D. Čerňan, J. Puchý, V. |
| Copyright Year | 2017 |
| Abstract | The article deals with the effect of porosity on the contact fatigue of sintered material type Astaloy CrL with 0.3 and 0.4% C. Sets of samples were used with densities beginning from the value of 7000 kg.m−3to the value of almost 7859 kg.m−3which represents almost zero porosity (compact material). It has been found out that the increase of compacting pressure applied simultaneously with temperature results in the reduction of porosity from the value of 9.10% to 0.0005% and increase in hardness from 145 to 193 HV10, depending on the carbon content. Logically there is also an increase in the fatigue life by the contact fatigue tests for the value of 50×106cycles from the value of 900 MPa to 1150 MPa for samples with 0.3% of C and from 900 MPa to 1300 MPa for samples with 0.4% C. These investigations were also carried out in the past, but to achieve the reduction of porosity, different technonologies were used at each level such as double pressing, hot pressing, saturation, hot forging, etc. In this case, the single technology of “spark plasma sintering” making use of compacting at high temperatures is capable to continuously reduce porosity to zero. |
| Related Links | https://content.sciendo.com/downloadpdf/journals/pmp/17/1/article-p21.pdf http://www.degruyter.com/downloadpdf/j/pmp.2017.17.issue-1/pmp-2017-0003/pmp-2017-0003.xml |
| Ending Page | 28 |
| Page Count | 8 |
| Starting Page | 21 |
| e-ISSN | 13394533 |
| DOI | 10.1515/pmp-2017-0003 |
| Journal | Powder Metallurgy Progress |
| Issue Number | 1 |
| Volume Number | 17 |
| Language | English |
| Publisher | Walter de Gruyter GmbH |
| Publisher Date | 2017-12-01 |
| Access Restriction | Open |
| Subject Keyword | Powder Metallurgy Progress Manufacturing Engineering Spark Plasma Sintering Cr-sintered Steel Contact Fatigue Journal: Powder Metallurgy Progress, Issue- 4 |
| Content Type | Text |
| Resource Type | Article |
