The improvement of microstructure leads to a considerable reduction of the susceptibility of hot cracking of weld metal as indicated by the transverse-varestraint test.
增加焊缝中的共晶数量并改善其分布形态，从而有助于降低焊缝金属的热裂纹敏感性。
The weldability of TCS corrosion resistant stainless steel for railway wagon was investigated by cold cracking sensitivity test, HAZ maximum hardness test and varestraint test.
通过冷裂敏感性试验、焊接热影响区最高硬度试验及可调拘束试验，对新型铁路车辆用TCS耐蚀钢的焊接性进行了深入系统分析。
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