CN114953633A - 一种耐高温高压防腐延展性强的2132ah航天材料及制备方法 - Google Patents
一种耐高温高压防腐延展性强的2132ah航天材料及制备方法 Download PDFInfo
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Abstract
本发明提供了一种耐高温高压防腐延展性强的2132AH航天材料及制备方法,包括钛合金、Hastelloy C22合金以及2132AH,所述Hastelloy C22合金安装在钛合金一侧,所述钛合金远离Hastelloy C22合金的一侧设有镍基高温合金,所述2132AH安装在镍基高温合金远离钛合金的一侧。在使用的时候具有耐高温高压防腐延展性强的效果,Hastelloy C22合金有很好的抗点蚀,缝隙腐蚀和应力腐蚀开裂能力,它具有优异的抗氧化水介质能力,包括湿氯,硝酸或者含有氯化物离子的氧化性酸的混合酸,同时,Hastelloy C22合金也有理想的抵抗过程中遭遇的还原性和氧化性环境的能力,钛合金是以钛为基加入其他合金元素组成的合金。
Description
技术领域
本发明涉及航空航天领域,特别涉及一种耐高温高压防腐延展性强的2132AH航天材料及制备方法。
背景技术
航空航天材料是指飞行器及其动力装置、附件、仪表所用的各类材料,是航空航天工程技术发展的决定性因素之一,也是航空航天材料科学是材料科学中富有开拓性的一个分支,航空航天材料具有优良的耐高低温性能以及耐老化和耐腐蚀性能,能适应空间环境。材料应具备的条件用航空航天材料制造的许多零件往往需要在超高温、超低温、高真空、高应力、强腐蚀等极端条件下工作,有的则受到重量和容纳空间的限制,需要以最小的体积和质量发挥在通常情况下等效的功能,有的需要在大气层中或外层空间长期运行,不可能停机检查或更换零件,因而要有极高的可靠性和质量保证,不同的工作环境要求航空航天材料具有不同的特性。
传统的航空航天材料在使用的时候效果单一,不具备多种效果,使得材料在使用的时候不便,不能够适应各种情况。
发明内容
本发明的目的是设计一种耐高温高压防腐延展性强的2132AH航天材料及制备方法,这种材料在使用的时候具有耐高温高压防腐延展性强的效果。
为了达到上述发明目的,本发明采用的技术方案为:一种耐高温高压防腐延展性强的2132AH航天材料,其特征在于,包括钛合金、Hastelloy C22合金以及2132AH,所述Hastelloy C22合金安装在钛合金一侧,所述钛合金远离HastelloyC22合金的一侧设有镍基高温合金,所述2132AH安装在镍基高温合金远离钛合金的一侧。
作为改进,所述Hastelloy C22合金、钛合金、2132AH以及镍基高温合金之间压力焊连接。
一种耐高温高压防腐延展性强的2132AH航天材料制备方法,包括以下步骤:
(1)钛在液态下和氧、氮、氢和碳的反应相当快,因此钛合金熔炼必须在较高的真空度或惰性气体Ar或Ne保护下进行,熔炼用坩埚采用水冷铜坩埚,采用真空自耗电极电弧炉熔炼,真空电弧炉是将自耗电极直接熔化在坩埚内,然后铸成铸锭;
(2)真空凝壳炉虽然也是将自耗电极熔化在坩埚内,但先在坩埚壁上凝固为-薄层“凝壳”,起到保护钛液不被坩埚材料污染和隔热作用,以便在坩埚内形成一个熔池,当熔液达到需要量时便翻转坩埚,将金属液注入铸型,形成铸件;
(3)钛和钛合金铸件的浇注,在浇注的过程中能使液态钛迅速平稳地从同一方向自下而上平稳填充铸型型腔,不产生紊流、喷射和断流,并让型腔中的气体能顺利地排出铸型外;
(4)浇注完成的钛合金进行热处理;
(5)将材料钛合金、Hastelloy C22合金以及镍基高温合金通过压力焊利用加压或同时加热,使两工件结合面上的原子相互接近到晶格距离,使两个分离表面的金属原子接近到原子能够发生相互作用的距离约为0.3~0.5nm形成金属键,从而使两金属连为一体,达到焊接目的,从而在固态条件下实现连接的方法,在压力焊的过程中,压力与加热温度之间存在着一定关系,焊接区金属温度越低,实现焊接所需的压力就越大。
本发明的有益效果为:这种耐高温高压防腐延展性强的2132AH航天材料及制备方法,在使用的时候具有耐高温高压防腐延展性强的效果,Hastelloy C22合金有很好的抗点蚀,缝隙腐蚀和应力腐蚀开裂能力,它具有优异的抗氧化水介质能力,包括湿氯,硝酸或者含有氯化物离子的氧化性酸的混合酸,同时,Hastelloy C22合金也有理想的抵抗过程中遭遇的还原性和氧化性环境的能力,钛合金是以钛为基加入其他合金元素组成的合金。钛合金具有密度低、比强度高、抗腐蚀性能好、耐热性高、工艺性能好等优点。镍基高温合金是以镍为基体 (含量一般大于50%)在650~1000℃范围内具有较高的强度和良好的抗氧化、抗燃气腐蚀能力的高温合金,在高温下具有优异的机械强度和抗蠕变性良好的表面稳定性。
附图说明
图1为本发明一种耐高温高压防腐延展性强的2132AH航天材料结构图。
附图标记对照表:
1、纳米涂层;2、Hastelloy C22合金;3、钛合金;4、镍基高温合金;5、2132AH;6、防静电膜。
具体实施方式
为了使本发明的内容更容易被清楚地理解,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述。其中相同的零部件用相同的附图标记表示。需要说明的是,下面描述中使用的词语“前”、“后”、“左”、“右”、“上”和“下”指的是附图中的方向,词语“内”和“外”分别指的是朝向或远离特定部件几何中心的方向。
如图1所示,一种耐高温高压防腐延展性强的2132AH航天材料,其特征在于,包括钛合金2、Hastelloy C22合金1以及2132AH4,所述Hastelloy C22合金1安装在钛合金2一侧,所述钛合金2远离Hastelloy C22合金1的一侧设有镍基高温合金3,所述2132AH4安装在镍基高温合金3远离钛合金2的一侧。
安装的Hastelloy C22合金1、钛合金2、2132AH4以及镍基高温合金3之间压力焊连接。
一种耐高温高压防腐延展性强的2132AH航天材料制备方法,包括以下步骤:
钛在液态下和氧、氮、氢和碳的反应相当快,因此钛合金熔炼必须在较高的真空度或惰性气体Ar或Ne保护下进行,熔炼用坩埚采用水冷铜坩埚,采用真空自耗电极电弧炉熔炼,真空电弧炉是将自耗电极直接熔化在坩埚内,然后铸成铸锭;真空凝壳炉虽然也是将自耗电极熔化在坩埚内,但先在坩埚壁上凝固为-薄层“凝壳”,起到保护钛液不被坩埚材料污染和隔热作用,以便在坩埚内形成一个熔池,当熔液达到需要量时便翻转坩埚,将金属液注入铸型,形成铸件;钛和钛合金铸件的浇注,在浇注的过程中能使液态钛迅速平稳地从同一方向自下而上平稳填充铸型型腔,不产生紊流、喷射和断流,并让型腔中的气体能顺利地排出铸型外;浇注完成的钛合金进行热处理。
将材料钛合金、Hastelloy C22合金、2132AH以及镍基高温合金通过压力焊的方式进行连接,压力焊利用加压或同时加热,使两工件结合面上的原子相互接近到晶格距离,使两个分离表面的金属原子接近到原子能够发生相互作用的距离约为0.3~0.5nm形成金属键,从而使两金属连为一体,达到焊接目的,从而在固态条件下实现连接的方法,压力与加热温度之间存在着一定关系,焊接区金属温度越低,实现焊接所需的压力就越大,压力是使两分离焊件表面紧密接触形成焊接接头的重要条件;加热可提高金属塑性,降低金属变形阻力,显著减小所需压力,同时加热又能增加金属原子的活动能力和扩散速度,促进原子间的相互作用易于实现焊接。
本发明在其工作时,Hastelloy C22合金2、钛合金3、2132AH以及镍基高温合金4之间压力焊连接,在通过铆接进行固定操作,铆接的方法工艺设备简单、抗震、耐冲击,且牢固可靠,使用的时候具有耐高温高压防腐延展性强的效果,Hastelloy C22合金有很好的抗点蚀,缝隙腐蚀和应力腐蚀开裂能力,同时,Hastelloy C22合金也有理想的抵抗过程中遭遇的还原性和氧化性环境的能力,钛合金是以钛为基加入其他合金元素组成的合金,钛合金具有密度低、比强度高、抗腐蚀性能好、耐热性高、工艺性能好等优点,镍基高温合金具有较高的强度和良好的抗氧化、抗燃气腐蚀能力的高温合金,在高温下具有优异的机械强度和抗蠕变性良好的表面稳定性。
表1
表2
表3
以上所述仅为本发明专利的较佳实施例而已,并不用以限制本发明专利,凡在本发明专利的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明专利的保护范围之内。
Claims (3)
1.一种耐高温高压防腐延展性强的2132AH航天材料,其特征在于,包括钛合金(2)、Hastelloy C22合金(1)以及2132AH(4),所述Hastelloy C22合金(1)安装在钛合金(2)一侧,所述钛合金(2)远离Hastelloy C22合金(1)的一侧设有镍基高温合金(3),所述2132AH(4)安装在镍基高温合金(3)远离钛合金(2)的一侧。
2.根据权利要求1所述的一种耐高温高压防腐延展性强的2132AH航天材料,其特征在于,所述Hastelloy C22合金(1)、钛合金(2)、2132AH(4)以及镍基高温合金(3)之间压力焊连接。
3.一种耐高温高压防腐延展性强的2132AH航天材料制备方法,包括以下步骤:
(1)钛在液态下和氧、氮、氢和碳的反应相当快,因此钛合金熔炼必须在较高的真空度或惰性气体Ar或Ne保护下进行,熔炼用坩埚采用水冷铜坩埚,采用真空自耗电极电弧炉熔炼,真空电弧炉是将自耗电极直接熔化在坩埚内,然后铸成铸锭;
(2)真空凝壳炉虽然也是将自耗电极熔化在坩埚内,但先在坩埚壁上凝固为-薄层“凝壳”,起到保护钛液不被坩埚材料污染和隔热作用,以便在坩埚内形成一个熔池,当熔液达到需要量时便翻转坩埚,将金属液注入铸型,形成铸件;
(3)钛和钛合金铸件的浇注,在浇注的过程中能使液态钛迅速平稳地从同一方向自下而上平稳填充铸型型腔,不产生紊流、喷射和断流,并让型腔中的气体能顺利地排出铸型外;
(4)浇注完成的钛合金进行热处理;
(5)将材料钛合金、Hastelloy C22合金、2132AH以及镍基高温合金通过压力焊利用加压或同时加热,使两工件结合面上的原子相互接近到晶格距离,使两个分离表面的金属原子接近到原子能够发生相互作用的距离约为0.3~0.5nm形成金属键,从而使两金属连为一体,达到焊接目的,从而在固态条件下实现连接的方法,在压力焊的过程中,压力与加热温度之间存在着一定关系,焊接区金属温度越低,实现焊接所需的压力就越大。
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