Differential scanning calorimetry studies on Ni-Ni3B alloys

Jun Feng Xu, Feng Liu, Man Zhu, Zeng Yun Jian

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Solidification behaviors of hypoeutectic Ni-3.3wt% B and hypereutectic Ni-4.5wt% B alloys were investigated by using differential scanning calorimetry (DSC) technology. Experimental results showed that the solidification behaviors are similar for the two kinds of alloys with small sizes, i.e. three transformed peaks (corresponding to L→α-Ni, L→Ni-Ni23B6and Ni23B6→Ni+Ni3B, respectively) appear in the cooling curves, and three phases (primary phase α-Ni, rod eutectic and dot precipitates) appear in the microstructures, which are different from that of the alloys with large sizes. It can be attributed to the fact that the nucleation of α-Ni and Ni23B6phases are easier than that of Ni3B phase for small samples of hypoeutectic and hypereutectic Ni-Ni3B alloys.

Original languageEnglish
Title of host publicationBasic Research of Materials
EditorsYafang Han, Xuefeng Liu, Ying Wu
PublisherTrans Tech Publications Ltd
Pages556-559
Number of pages4
ISBN (Electronic)9783038353966
DOIs
StatePublished - 2015
EventChinese Materials Congress, CMC 2014 - Chengdu, China
Duration: 4 Jul 20147 Jul 2014

Publication series

NameMaterials Science Forum
Volume817
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

ConferenceChinese Materials Congress, CMC 2014
Country/TerritoryChina
CityChengdu
Period4/07/147/07/14

Keywords

  • Eutectic
  • Solidification
  • Undercooling

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