EMBRITTLEMENT IN LATH MARTENSITE STEELS CONTAINING 6-10% MANGANESE.

Setsuo Takaki, Yasushi Kato, Youichi Tokunaga

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The embrittling behavior has been investigated by Charpy impact tests, scanning electron microscopy and scanning Auger microscopy. Specimens water quenched from the solution temperature (1373 K) fracture in the transgranular cleavage mode at a temperature below 280 K. If the cooling rate from the solution temperature is small, the steel fractures in the intergranular mode, resulting in a rise in the ductile-brittle transition temperature. Grain boundary brittleness proceeds during slow cooling below the MS temperatures. Train boundary strength is slightly higher than the transgranular cleavage fracture strength.

Original languageEnglish
Pages (from-to)950-955
Number of pages6
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume50
Issue number11
Publication statusPublished - Nov 1986

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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