Title:
WELDING MATERIAL FOR Ni-BASED HEAT-RESISTANT ALLOY, AND WELDED METAL AND WELDED JOINT EACH USING SAME
Document Type and Number:
WIPO Patent Application WO/2011/158706
Kind Code:
A1
Abstract:
Disclosed is a welding material for an Ni-based heat-resistant alloy, which has a chemical composition that contains 0.06-0.18% of C, 0.5% or less of Si, 1.5% or less of Mn, 46-56% of Ni, 10-15% of Co, 20-25% of Cr, more than 10.0% but 14.0% or less of Mo, 0.01-0.5% of Ti, 0.1-1.0% of Al and 0.006% or less of N, and additionally if necessary, 0.1% or less of Nd with the balance made up of Fe and impurities, while controlling O, P and S contained as impurities to 0.02% or less, 0.008% or less, and 0.005% or less, respectively. The welding material for an Ni-based heat-resistant alloy exhibits excellent high-temperature cracking resistance during the welding. A welded metal that has high-temperature cracking resistance during the welding, stress relaxation cracking resistance when in use for a long period of time at high temperatures, and good creep strength can be provided using the above-described welding material. In addition, a welded joint can be provided using the above-described welding material, said welded joint being composed of a base of an Ni-based heat-resistant alloy that has excellent high-temperature strength and a welded metal that has high-temperature cracking resistance during the welding, stress relaxation cracking resistance when in use for a long period of time at high temperatures, and good creep strength.
Inventors:
HIRATA HIROYUKI (JP)
YOSHIZAWA MITSURU (JP)
OGAWA KAZUHIRO (JP)
ISEDA ATSURO (JP)
SEMBA HIROYUKI (JP)
YOSHIZAWA MITSURU (JP)
OGAWA KAZUHIRO (JP)
ISEDA ATSURO (JP)
SEMBA HIROYUKI (JP)
Application Number:
PCT/JP2011/063097
Publication Date:
December 22, 2011
Filing Date:
June 08, 2011
Export Citation:
Assignee:
SUMITOMO METAL IND (JP)
HIRATA HIROYUKI (JP)
YOSHIZAWA MITSURU (JP)
OGAWA KAZUHIRO (JP)
ISEDA ATSURO (JP)
SEMBA HIROYUKI (JP)
HIRATA HIROYUKI (JP)
YOSHIZAWA MITSURU (JP)
OGAWA KAZUHIRO (JP)
ISEDA ATSURO (JP)
SEMBA HIROYUKI (JP)
International Classes:
B23K35/30; C22C19/05
Foreign References:
JP2002235136A | 2002-08-23 | |||
JPH09108888A | 1997-04-28 | |||
JP2009195980A | 2009-09-03 |
Attorney, Agent or Firm:
SUGIOKA, Kanji et al. (JP)
Sugioka Miki 2 (JP)
Sugioka Miki 2 (JP)
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Claims: