000 00568nam a22001697a 4500
005 20210218105216.0
008 210218b xxu||||| |||| 00| 0 eng d
040 _cIIT Kanpur
041 _aeng
100 _aWitzke, Walter R.
245 _aEffect of alloying on grain refinement of electorn-beam-melted tungsten [NASA TN D-3531]
_cWAlter R.Witzke
260 _aWashington,D.C.
_bNational Aeronautics and Spcae Administration
_c1966
300 _a17p
440 _aNational Aeronautics and Spcae Administration(NASA)
650 _aGrain refinement
942 _cREF
999 _c564124
_d564124