It is pointed out that the cause of decrease in cracking load is mainly due to the presence of ducts in concrete elements which weaken the bursting resistance of the anchorage zone.

指出预留孔道削弱了锚固区抗劈裂的能力，成为降低开裂荷载的主要因素。

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One of the greatest contributors to non-uniform hardness, increased thermal stresses, cracking and distortion is non-uniform fluid flow throughout the quench zone in production quench tanks.

造成淬火后工件硬度不均匀、热应力增加、畸变和开裂，主要是因为淬火槽内整个淬火区的液流不均匀。

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Cracking resistance of ultra-low cabon Cu-bearing age-hardening steels was studied in this paper by computing, maximum hardness in weld heat-affected zone test and Y-groove cracking test.

采用理论计算、热影响区最高硬度试验和小铁研试验方法研究了超低碳含铜时效钢的抗裂性。

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