To the problem of more yield strength error in SSAW pipe transverse strip specimen tensile tests, analyze the reason of the error, put forward corresponding solving method.
针对螺旋埋弧焊钢管横向板状试样在拉伸试验时存在的屈服强度误差较大的问题，分析了其误差较大的原因，并提出了相应的解决办法。
A brief introduction to the preparation of metallographic specimen of NdFeB ingot or strip casting are given in this article.
文章介绍了钕铁硼铸块或速凝薄带的金相样品的制备方法。
A brief introduction to the preparation of metallographic specimen of NdFeB ingot or strip casting are given in this article.
文章介绍了钕铁硼铸块或速凝薄带的金相样品的制备方法。
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