Home HOME Kovove Materialy-Metallic Materials 2015 Metallic Materials Vol. 53 (2015), no. 4, pp.275-285

Journal info

Select Journal







Webshop Cart

Your Cart is currently empty.
Info: Your browser does not accept cookies. To put products into your cart and purchase them you need to enable cookies.

Metallic Materials Vol. 53 (2015), no. 4, pp.275-285

Title: Revisit and insight into the dilemma of strong and brittle materials: Toughening by Grain Boundary Engineering (GBE)
Author: T. WATANABE, S. KOBAYASHI
Abstract: There is a long pending dilemma, “strong and brittle” materials that still remains unsolved in materials development based on the discipline of Materials Science Engineering (MSE). To solve the dilemma a new concept of “Grain Boundary Engineering” (GBE) was proposed by one of the authors in the early 1980s. In recent years, GBE for toughening of brittle materials has been challenged by several groups including ours, drawing an increasing interest of many researchers. Extensive works have been successfully performed in order to produce “strong and tough” polycrystalline materials. In this article, we present the current progress in GBE, to confirm the situation to what extent the problem has been solved. We pay our special attention to two kinds of brittle materials, i.e. intrinsically and extrinsically brittle ones. These brittle materials can be transformed into “strong and tough” materials by GBE through controlling intergranular fracture under static and cyclic stressing fatigue conditions.
Keywords: brittle materials, Grain Boundary Engineering (GBE), intergranular fracture, grain boundary microstructure, strong and tough materials
Published online: 18-Jan-2016
Year: 2015, Volume: 53, Issue: 4 Page From: 275, Page To: 285
doi:10.4149/km_2015_4_275


download file


© AEPress s.r.o
Copyright notice: For any permission to reproduce, archive or otherwise use the documents in the ELiS, please contact AEP.