采用光滑圆棒和中心孔板片试样，对GH901合金室温高低周复合疲劳进行了系统的研究。

The fatigue behaviours of Superalloy GH901 under major combined with minor cycle have been systematically studied at room temperature using smooth specimen and sheet with center hole.

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通过有限元解析方法分别研究了轴向或扭转载荷下带环状裂纹圆棒试样的J积分的评价方法。

Finite element method was used to analyze the J integral evaluation method for a cylindrical specimen with deep circumferential crack under axial or torsional load.

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通过试验研究了X65、X70级螺旋埋弧焊钢管不同拉伸试样——板状试样和圆棒试样的拉伸性能。

This paper studies the tensile properties of stripe and round bar specimens for high grade(API X65~X70) spiral submerged-arc welding(SSAW) steel pipes.

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