402 矩形断面をもつセラミックスはりを利用する超塑性特性の評価(オーガナイズドセッション : 超塑性と材料および造形法)

概要

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It has been difficult to clarify whether there exist different behaviors between tension and compression under superplastic conditions on advanced ceramics, since friction conditions for the two kinds of deformations are quite different with each other. The target of this study is to give a clear answer to this problem by carrying out four-point bending tests. Theoretical analyses were made with some assumptions using the relationship between tests data and ratio of compressive stress to tensile stress. We can conclude that the compression behaviors are different from the tension behaviors under the same deformation condition and the flow stress under tension is smaller than that under compression.
一般社団法人日本機械学会の論文
2001-09-20