ISSN:
1662-8985
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
The effect of morphology and distribution of sulfides on tensile, impact and bendingfatigue properties of non-quenched and tempered steel 49MnVS3 has been investigated in this paper.Microscopic structure and morphology of sulfides are observed, and impact fracture and fatiguefracture have been analyzed by SEM. The results show that the morphology of sulfides is mostly stripand distributes in ferrite, which affects mechanical properties and fatigue life. The length direction ofsulfide strip is parallel to the rolling direction of steel. When the length of sulfide is short relativelyand is approximate to the shape of particles. The impact properties and bending fatigue performanceof 49MnVS3 are higher. Under those conditions, there are more ductile characteristics in their impactfracture and the fatigue fracture. The reasons for the effect of sulfide morphology on the mechanicaland fatigue properties are explained
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/41/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.51.11.pdf
Permalink