This paper pressents a polynomial with four odd terms to fit the stress-strain relation for the materials with arbitrary hardening behaviour in the region of small elastoplastic deformation.
首先在小弹塑性范围内用应变的奇次四项式相当精确地拟合一般硬化材料的拉伸曲线；
Experiments were carried out upon the hardening and toughening, wear resistance and abrasive behaviour of the low alloyed high carbon wear resistant cast steel.
对所研制的高碳低合金耐磨钢的强韧化、耐磨性及磨损行为进行了研究。
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