By using the transvarestraint test,the welding hot cracking susceptibility of aluminium-lithium(Al-Li) alloy and 2024 alloy has been estimated.

• 采用横向变拘束试验,研究铝锂合金(A合金)和2024合金的焊接热裂纹敏感性;并对焊缝组织进行分析,探讨它对两种合金焊接开裂倾向的影响。