하헌필 김경탁 심재동 김용규 2024-01-21T05:39:59Z 2024-01-21T05:39:59Z 2021-09-06 2005-01 1225-0562 https://pubs.kist.re.kr/handle/201004/136855 Ni-Cr-Sn-Bi alloys were prepared by air melting and sand casting method and their anti-galling behaviors were examined. Anti-galling properties were dominantly influenced by Bi-rich low temperature precipitates. Alloying effects on the anti-galling properties were investigated for several alloying elements to improve anti-galling properties of the alloy. An alloy with 1-3wt% of Te showed markedly improved anti-galling properties. Metallographic and tribological tests were carried out to find out reasons for excellent properties. It was found that Te containing alloy has finely distributed precipitates of Bi-rich phase. The addition of Te changed the morphology of the Ni-rich primary phase from globular to fine dendritic. As a result, the anti-galling phase precipitated between dendrite arms with fine distribution showed excellent anti-galling properties. 한국재료학회 Ni-Cr-Sn-Bi합금의 anti-galling 특성에 미치는 Te의 영향 Effects of Te on the Anti-Galling Properties of Ni-Cr-Sn-Bi Alloy Article 2 한국재료학회지, v.15, no.1, pp.14 - 18 한국재료학회지 15 1 14 18 kci ART000929302 anti-galling alloy. tellurium. prcipitates. micro structure refinement