The basic properties of sintered powder materials in plastic deformation are explained. Some defects in present yield criteria of the materials are analysed.
阐述了粉末烧结材料塑性变形的基本性质，分析了粉末烧结材料现有屈服条件中存在的问题。
The basic properties of sintered powder materials in plastic deformation are explained. Some defects in present yield criteria of the materials are analysed.
阐述了粉末烧结材料塑性变形的基本性质，分析了粉末烧结材料现有屈服条件中存在的问题。
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