您要查找的是不是：
- weld metal cracking 焊缝裂纹
- Addition of activating agent had no obvious effect on fracture toughness of weld metal, but it improved the length of ductile crack propagation. 添加活性剂对焊缝金属的断裂韧性没有明显作用，但对延性裂纹扩展长度有所改善。
- Sometimes all that is left is a skeleton casting with weld metal. 有时所有这些问题都遗留在铸件焊接金属框架里。
- welding metal cracking 焊缝金属裂纹
- weld metal solidification cracking 凝固裂纹
- EFFECT OF NIOBIUM ON SOLIDIFICATION CRACK SUSCEPTIBILITY OF 00Cr25Ni20Nb AUSTENITIC STAINLESS STEEL WELD METALS. 铌对00Cr25Ni20Nb奥氏体不锈钢焊缝凝固裂纹敏感性影响的研究
- A beam of light produced by a laser can weld metals. 激光器发生的光束可以焊接金属。
- The deposited ferritic weld metal shall not contact the austenitic or high-chromium steel cladding. 熔敷的铁素体焊缝金属不应与奥氏体或高铬钢复层接触。
- Addition of activating agent has no obvious effect on fracture toughness of weld metal. 添加活性剂对焊缝金属的断裂韧性没有明显作用。
- The weld metal is fine and close in structure resulting in goodlooking appearace. 焊缝细密美观；适合全位置焊接；
- Fracture toughness of heat affected zone (HAZ) was between the base metal and weld metal. 焊接热影响区的断裂韧性介于母材和焊缝金属之间。
- D.McKeown, “Hydrogen and its Control in Weld Metal,” Metal Contruction, Vol. 17, No. 10, pp. 655-661, 1985. 张清辉，吴实平，洪波，焊接材料研制理论与技术，冶金工业出版社，第56-58页，民国91年。
- The microstructure of weld metal for MAW is blocky ferrite and a little pearlite, the microstructure in the heat-affected zone is new type bainite. 手工焊焊后不热处理焊缝组织主要为块状铁素体和少量珠光体，热影响区组织为新型贝氏体组织；
- The results showed that non-metal inclusions in weld metal are round in shape and droplet are chemical reaction products in droplet stage. 结果表明焊缝和熔滴中的非金属夹杂物呈圆球形,它们是熔滴反应区化学反应的产物,属“内生”性质;
- The results of Charpy-V tests have displayed that the weld metal obtains the best toughness at a content of 0.006 wt.% of Zr. 夏比冲击韧性试验显示，锆含量在0.;006%25时焊缝金属韧性最好。
- When the oxygen content increases, the weld bead penetration and $ D/W increases sharply while the weld metal width decreases. 随着氧含量的增加, 深宽比和熔深急剧增加, 熔宽减小。
- However, as the chemistry, diffusible hydrogen level of the weld metal, restraint or section thickness increases, the demand for preheat also increases. 然而，由于化学，扩散氢水平的焊缝，克制，或切片厚度的增加，需求的预热也随之增强。
- Microstructure of weld metal is characterized coarsened austenic granular crystal,and the fusion of interface is fine, crystal of overheated zone do not grows up severely. 焊缝为奥氏体组织,呈较为粗大的柱状晶形态,且与母材熔合良好;过热区的晶粒长大不严重。
- Advantageously the viscosity of the molten weld metal from which the barrier is formed is so high that it is possible to form the barriers with overhanging end profiles. 有利的粘度熔融焊缝金属的阻隔而形成如此之高，有可能构成障碍，悬垂年底概况。
- Microstructure of weld metal is characterized coarsened austenic granular crystal, and the fusion of interface is fine, crystal of overheated zone do not grows up severely. 焊缝为奥氏体组织，呈较为粗大的柱状晶形态，且与母材熔合良好；过热区的晶粒长大不严重。
