Improved Creep Strength and Creep Ductility of Type 347 Austenitic Stainless Steel through the Self-Healing Effect of Boron for Creep Cavitation From: Metallurgical and Materials Transactions | Date: February 1, 2005| Author: Kishimoto, S; Kyono, J; Sasaki, T; Shinya, N; Laha, K | Copyright Minerals, Metals & Materials Society Feb 2005. Provided by ProQuest LLC.Copyright information

Composition of type 347 austenitic stainless steel was modified with the addition of boron and cerium. An improvement of creep strength coupled with creep ductility of the steel was observed with boron and cerium additions. The observation of enhanced precipitation of carbonitrides in boron-containing steel over that of boron-free steel may in part contribute to the increase in creep strength. Both grain boundary sliding and nucleation and growth of intergranular creep cavities were found to ...

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