RU2007137803A - METHOD FOR PROCESSING CASTINGS FROM HEAT-RESISTANT NICKEL ALLOY FOR MONOCRYSTAL CASTING - Google Patents
METHOD FOR PROCESSING CASTINGS FROM HEAT-RESISTANT NICKEL ALLOY FOR MONOCRYSTAL CASTING Download PDFInfo
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- RU2007137803A RU2007137803A RU2007137803/02A RU2007137803A RU2007137803A RU 2007137803 A RU2007137803 A RU 2007137803A RU 2007137803/02 A RU2007137803/02 A RU 2007137803/02A RU 2007137803 A RU2007137803 A RU 2007137803A RU 2007137803 A RU2007137803 A RU 2007137803A
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Abstract
1. Способ обработки отливок из жаропрочного никелевого сплава для монокристального литья содержащего никель, хром, кобальт, вольфрам, алюминий, тантал, рений, иттрий, лантан и церий при выполнении условий 15,1≤(W+Ta+Re)≤31,0 мас.%, отличающийся тем, что отливку подвергают термической обработке, в качестве термической обработки используют гомогенизацию и старение, причем гомогенизацию приводят путем нагрева до температуры (Тпр.-15°С)≤Тгом.≤(Тпр.+10°С), где Тпр. - температура полного растворения -фазы в сплаве, выдержки при данной температуре и охлаждения со скоростью 50-100 град/мин. ! 2. Способ по п.1, отличающийся тем, что перед термической обработкой осуществляют газостатическое прессование отливки. ! 3. Способ по п.1, отличающийся тем, что нагрев осуществляют ступенчато. ! 4. Способ по п.1, отличающийся тем, что старение проводят ступенчато, по меньшей мере, за два этапа. ! 5. Способ по п.1, отличающийся тем, что обрабатывают отливку, для которой выполняется условие и (Cr+Co+W+Al+Ta)≤37,8 мас.%.1. Method for processing castings of heat-resistant nickel alloy for single crystal casting containing nickel, chromium, cobalt, tungsten, aluminum, tantalum, rhenium, yttrium, lanthanum and cerium under the conditions 15.1≤ (W + Ta + Re) ≤31.0 wt.%, characterized in that the casting is subjected to heat treatment, homogenization and aging are used as the heat treatment, moreover, homogenization is carried out by heating to a temperature (Tp. -15 ° C) ≤Tgom. ≤ (Tp. + 10 ° C), where tpr. - the temperature of complete dissolution of the α phase in the alloy, exposure at a given temperature and cooling at a speed of 50-100 deg / min. ! 2. The method according to claim 1, characterized in that before the heat treatment gas-static pressing of the casting is carried out. ! 3. The method according to claim 1, characterized in that the heating is carried out stepwise. ! 4. The method according to claim 1, characterized in that the aging is carried out stepwise, at least in two stages. ! 5. The method according to claim 1, characterized in that the cast is processed for which the condition is satisfied and (Cr + Co + W + Al + Ta) ≤37.8 wt.%.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2007137803/02A RU2361011C1 (en) | 2007-10-15 | 2007-10-15 | Processing method of casts made of heat-resistant nickel alloys for single-crystal foundaring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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RU2007137803/02A RU2361011C1 (en) | 2007-10-15 | 2007-10-15 | Processing method of casts made of heat-resistant nickel alloys for single-crystal foundaring |
Publications (2)
Publication Number | Publication Date |
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RU2007137803A true RU2007137803A (en) | 2009-04-20 |
RU2361011C1 RU2361011C1 (en) | 2009-07-10 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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RU2007137803/02A RU2361011C1 (en) | 2007-10-15 | 2007-10-15 | Processing method of casts made of heat-resistant nickel alloys for single-crystal foundaring |
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RU (1) | RU2361011C1 (en) |
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- 2007-10-15 RU RU2007137803/02A patent/RU2361011C1/en not_active IP Right Cessation
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RU2361011C1 (en) | 2009-07-10 |
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Effective date: 20170116 |
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Effective date: 20191016 |