TEM and HREM study on the fine structure and the interfacial structure of bainite

Fengzhao Li, Qing Ao, Yingni Gu, Jiang Jiang, Dongsheng Sun, Jiyan Dai, Hongying Peng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

The fine structure of bainite, the morphology and distribution of carbide in steels and the morphology of bainite in Cu-Zn-Al alloys have been investigated with TEM. The interfacial structure ledges and interfacial crystal lattice images of Cu-Zn-Al alloys have also been investigated with HREM. The addition of alloying microelements can fine the structure of bainitic ferrite markedly. The bainitic ferrite is composed of subunits or subchunks. The carbides differ in morphologies and are distributed in between laths, inside the plates and on the boundaries of subunits. There are abundant fine structures in bainitic ferrite. In the primary bainite of Cu-Zn-Al alloy there are interfacial structure ledges, the height of which is about 3-40 nm, equal to 15-200 atomic layers. The phase transformation mechanism of bainite is discussed.
Original languageEnglish
JournalScience in China, Series E: Technological Sciences
Volume39
Issue number6
Publication statusPublished - 1 Dec 1996
Externally publishedYes

Keywords

  • Bainitic ferrite
  • Fine structure
  • Interfacial structure ledges
  • Subunit

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this