CN105624472A - 一种3d打印用镍基高温合金粉及其制备方法 - Google Patents
一种3d打印用镍基高温合金粉及其制备方法 Download PDFInfo
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- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
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- B33—ADDITIVE MANUFACTURING TECHNOLOGY
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Abstract
本发明公开了一种3D打印用镍基高温合金粉及其制备方法,以重量百分比计,合金粉的化学组成为,Ni50-80%,Al3-7%、Si≤1%、Ti1-6%、V0.1-1%、Cr2-10%、Mn≤1%、Fe1.68%、Co8-15%;其制备步骤为:(1)按重量比称取原料,放入真空熔炼炉中熔炼为液体;(2)将步骤(1)中得到的熔炼液体在过热度20-40℃下用高压氩气下进行雾化,得到合金粉末;(3)将步骤(2)中得到的合金粉末在氩气保护下进行高温退火处理后,进行振动筛分,冷却后分级真空包装,即得到所述镍基高温合金粉。该合金粉球形度高、松装比大、流动性好、粒径分布窄,特别适合3D打印领域。
Description
技术领域
本发明涉及一种3D打印用镍基高温合金粉及其制备方法,属于高温合金领域。
背景技术
3D打印金属粉末作为金属零件3D打印产业链最重要的一环,也是最大的价值所在。在“2013年世界3D打印技术产业大会”上,世界3D打印行业的权威专家对3D打印金属粉末给予明确定义,即指尺寸小于1mm的金属颗粒群。包括单一金属粉末、合金粉末以及具有金属性质的某些难熔化合物粉末。目前,3D打印金属粉末材料包括钴铬合金、不锈钢、工业钢、青铜合金、钛合金和镍铝合金等。但是3D打印金属粉末除需具备良好的可塑性外,还必须满足粉末粒径细小、粒度分布较窄、球形度高、流动性好和松装密度高等要求。
现代燃气涡轮发动机有50%以上质量的材料采用高温合金,其中镍基高温合金的用量在发动机材料中约占40%。镍基合金在中、高温度下具有优异综合性能,适合长时间在高温下工作,能够抗腐蚀和磨蚀,是最复杂的、在高温零部件中应用最广泛的、在所有超合金中许多冶金工作者最感兴趣的合金。
随着3D打印技术的兴起,人们对金属粉末引起了更大的关注,同时也对金属粉末提出了更高的要求,必须满足粒径小、粒度分布较窄、球形度高、流动性好、松装密度高的特性,目前,这些性能难以同时满足,导致通过激光烧结的3D打印产品出现较多缺陷,而高温合金作为粉末冶金领域应用广泛的金属材料,在3D打印过程中,由于升降温速度快,极易形成热裂纹等缺陷,这些大大限制了高温合金粉在3D打印领域的应用。
发明内容
本发明针对现有技术问题,提出了一种用于3D打印的镍基高温合金粉,具体包括Ni50-80%,Al3-7%、Si≤1%、Ti1-6%、V0.1-1%、Cr2-10%、Mn≤1%、Fe1.68%、Co8-15%,更优选Ni59.13%,Al6.74%、Si0.41%、Ti4.89%、V0.71%、Cr9.86%、Mn0.60%、Fe1.68%、Co14.96%;该合金粉的制备步骤包括:(1)按重量比称取Ni、Al、Si、Ti、V、Cr、Mn、Fe、Co,放入真空熔炼炉中熔炼为液体;(2)将步骤(1)中得到的熔炼液体在过热度20-40℃下用高压氩气下进行雾化,得到合金粉末;(3)将步骤(2)中得到的合金粉末在氩气保护下进行高温退火处理后,进行振动筛分,冷却后分级真空包装,即得到所述镍基高温合金粉。
进一步,步骤(2)中高压氩气为5-10Mpa,纯度为99.99%。
具体实施例:
为了使本发明的目的、技术方案及优点更加清楚明白,以下结合实施例,对本发明进行进一步详细说明。应当理解的是,此处所描述的具体实施列仅仅用以解释本发明,并不用于限定本发明。
实施例
一种用于3D打印的镍基高温合金粉,以重量计,具体包括Ni59.13%,Al7.06%、Si0.41%、Ti4.89%、V0.71%、Cr9.86%、Mn0.60%、Fe1.68%、Co14.96%,该合金粉的制备步骤如下:
(1)按重量比称取Ni59.13%,Al7.06%、Si0.41%、Ti4.89%、V0.71%、Cr9.86%、Mn0.60%、Fe1.68%、Co14.96%,放入真空熔炼炉中熔炼为液体;
(2)将步骤(1)中得到的熔炼液体在过热度20℃下用5Mpa、纯度为99.99%的高压氩气进行雾化,得到合金粉末;
(3)将步骤(2)中得到的合金粉末在氩气保护下进行高温退火处理后,进行振动筛分,冷却后分级真空包装,即得到所述镍基高温合金粉。
Claims (4)
1.一种3D打印用镍基高温合金粉,其特征在于,以重量百分比计,合金粉的化学组成为:Ni50-80%,Al3-7%、Si≤1%、Ti1-6%、V0.1-1%、Cr2-10%、Mn≤1%、Fe1.68%、Co8-15%。
2.一种如权利要求1所述3D打印用镍基高温合金粉,其特征在于,以重量百分比计,合金粉的化学成份组成为,Ni59.13%,Al6.74%、Si0.41%、Ti4.89%、V0.71%、Cr9.86%、Mn0.60%、Fe1.68%、Co14.96%。
3.一种3D打印用镍基高温合金粉的制备方法,其特征在于包括如下步骤:
(1)按重量比称取Ni,Al、Si、Ti、V、Cr、Mn、Fe、Co,放入真空熔炼炉中熔炼为液体;
(2)将步骤(1)中得到的熔炼液体在过热度20-40℃下用高压氩气下进行雾化,得到合金粉末;
(3)将步骤(2)中得到的合金粉末在氩气保护下进行高温退火处理后,进行振动筛分,冷却后分级真空包装,即得到所述镍基高温合金粉。
4.根据权利要求3所述的一种3D打印用镍基高温合金粉的制备方法,其特征在于,步骤(2)中高压氩气为5-10Mpa,纯度为99.99%。
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107326218A (zh) * | 2017-06-29 | 2017-11-07 | 西安欧中材料科技有限公司 | 一种3d打印用dd5镍基高温合金粉末的制备方法 |
CN108588482A (zh) * | 2018-07-16 | 2018-09-28 | 宝鸡钛程压力容器设备制造有限公司 | 一种3d打印钛合金粉末的配方及制备方法 |
CN111448327A (zh) * | 2017-07-28 | 2020-07-24 | 奥克斯梅特科技有限公司 | 镍基合金 |
CN112746198A (zh) * | 2020-12-30 | 2021-05-04 | 广东华科新材料研究院有限公司 | 3d打印用镍基高温合金粉及其制备方法 |
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JPH083665A (ja) * | 1994-06-20 | 1996-01-09 | Mitsubishi Materials Corp | 耐酸化性および高温強度に優れた金型用Ni基超耐熱合金 |
US20120201713A1 (en) * | 2009-10-20 | 2012-08-09 | Winfried Esser | Alloy for directional solidification and component made of stem-shaped chystals |
US20130129522A1 (en) * | 2011-11-17 | 2013-05-23 | Kenneth Harris | Rhenium-free single crystal superalloy for turbine blades and vane applications |
CN105149603A (zh) * | 2015-08-26 | 2015-12-16 | 上海材料研究所 | 高球形度Inconel625合金粉末及其制备方法与应用 |
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Patent Citations (4)
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JPH083665A (ja) * | 1994-06-20 | 1996-01-09 | Mitsubishi Materials Corp | 耐酸化性および高温強度に優れた金型用Ni基超耐熱合金 |
US20120201713A1 (en) * | 2009-10-20 | 2012-08-09 | Winfried Esser | Alloy for directional solidification and component made of stem-shaped chystals |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107326218A (zh) * | 2017-06-29 | 2017-11-07 | 西安欧中材料科技有限公司 | 一种3d打印用dd5镍基高温合金粉末的制备方法 |
CN111448327A (zh) * | 2017-07-28 | 2020-07-24 | 奥克斯梅特科技有限公司 | 镍基合金 |
CN108588482A (zh) * | 2018-07-16 | 2018-09-28 | 宝鸡钛程压力容器设备制造有限公司 | 一种3d打印钛合金粉末的配方及制备方法 |
CN112746198A (zh) * | 2020-12-30 | 2021-05-04 | 广东华科新材料研究院有限公司 | 3d打印用镍基高温合金粉及其制备方法 |
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