Structure/property relationships in multipass GMA welding of beryllium.
- Patrick W.
- William L.
- Dan J.
- Vivek R.
- Anna Marie
- Pallas A.
- Mark J.
- Paul
Beryllium is an interesting metal that has a strength to weight ratio six times that of steel. Because of its unique mechanical properties, beryllium is used in aerospace applications such as satellites. In addition, beryllium is also used in x-ray windows because it is nearly transparent to x-rays. Joining of beryllium has been studied for decades (Ref.l). Typically joining processes include braze-welding (either with gas tungsten arc or gas metal arc), soldering, brazing, and electron beam welding. Cracking which resulted from electron beam welding was recently studied to provide structure/property relationships in autogenous welds (Ref. 2). Braze-welding utilizes a welding arc to melt filler, and only a small amount of base metal is melted and incorporated into the weld pool. Very little has been done to characterize the braze-weld in terms of the structure/property relationships, especially with reference to multipass welding. Thus, this investigation was undertaken to evaluate the effects of multiple passes on microstructure, weld metal composition, and resulting material properties for beryllium welded with aluminum-silicon filler metal.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 975308
- Report Number(s):
- LA-UR-01-2323; TRN: US201008%%44
- Resource Relation:
- Conference: Submitted to: 82nd Annual AWS Convention, Cleveland, OH, May 9th, 2001
- Country of Publication:
- United States
- Language:
- English
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