共查询到20条相似文献，搜索用时 46 毫秒
1.
分析组成相对钛合金力学性能的贡献对组织设计极为重要。通过真实组织有限元模型定量分析了α<sub>p</sub>和β<sub>t</sub>中的应力和应变,并确定了他们对Ti-6Al-2Zr-1Mo-1V钛合金强度和韧性的贡献。结果表明,α<sub>p</sub>和β<sub>t</sub>中的应力呈现正态分布。β<sub>t</sub>的峰值应力和应力峰高远大于α<sub>p</sub>。然而,α<sub>p</sub>具有较大的峰值应变,β<sub>t</sub>具有较大的应变峰高。随着α<sub>p</sub>体积分数从49%降低到12%,β<sub>t</sub>对抗拉强度的贡献从59%增加到92%,对失效应变的贡献从36%增加到75%。然而,随着β<sub>t</sub>贡献的增加,合金抗拉强度增加了17%,失效应变降低了21%。研究结果定量揭示了组成相对强度和韧性的贡献,为钛合金组织设计提供了基础。 相似文献
2.
《热处理技术与装备》1993,(6)
|口.勺,|||||J..月┌─┐│综││述│└─┘日本热处理现状···········································,···········,················……囚一!现代表面工程指南·····································································……IV一6TIB,系材料开发·························································… 相似文献
3.
4.
《稀有金属(英文版)》2006,(6)
No. 1 Kinetics of stripping of gold loaded in DBC organic phase by sodium sulfite ··················································································································································ZHU Ping and GU Guobang 1 Effects of argon gas flow rate and guide shell on oxygen concentration in Czochralski silicon … 相似文献
5.
No Author 《金属学报(英文版)》1993,6(6):426-430
AUTHOR INDEX AAl Suhua······,····,·····················,二6一397AN Yunzheng···························……3一168 BBA Tu························,··············……2一86BAI Guangrun·················……1一53,4一264 CCAHN RW···························……3一1 79CANTORB··························一··……5一296CAO Ming… 相似文献
6.
7.
8.
朱振麟 《锻压装备与制造技术》1979,(6)
现场表演部分 1 .1000吨摩擦压力机锻造12.5万千瓦汽轮机24级叶片························……上海汽轮机厂 2.低熔点合金模具····················,···················,·····························,·……上海钢模厂 3.冷挤压钻夹头钥匙及外壳··,····,·····························,·············……上海机床附件一厂 4.板式斜楔形复合搓轧木钻工艺···············… 相似文献
9.
《锻压装备与制造技术》1968,(6)
—第1期— 毛主席最新指示················································……(l) 迎接无产阶级文化大革命的全面胜利 《人民日报》、《红旗》杂志、《解放军报》社论”·“····”·“··“”·“一(8)自动油压机··············································································……(7)油压无声铆钉机···································… 相似文献
10.
11.
摘要:采用C型环实验研究了2205双相不锈钢在饱和H2S环境下的应力腐蚀行为及开裂机理。研究结果表明,2205双相不锈钢在NACE标准A溶液中有良好的抗应力腐蚀能力。通过OM、SEM、EDS及电化学手段分析得出2205双相不锈钢的应力腐蚀开裂经历了表面点蚀,蚀坑形成,H2S解离,H原子吸附并从蚀坑位置扩散进入金属基体,在金属基体中聚集,通过氢致开裂机制导致裂纹萌生,并逐渐扩展。 相似文献
12.
13.
以高能球磨法制备的纳米MoSi<sub>2</sub>-CoNiCrAlY复合粉末为喷涂材料,利用等离子喷涂技术在GH4169合金表面沉积了MoSi<sub>2</sub>-CoNiCrAlY复合涂层,并研究了GH4169基材和复合涂层合金试样在900°C静态大气环境下的循环氧化行为。结果表明：复合涂层表现出较好的抗高温氧化性能,其氧化速率仅为1.23×10<sub>-7</sub> mg<sub>2</sub>.cm<sub>-4</sub>.s<sub>-1</sub>,这归因于MoSi<sub>2</sub>在氧化早期形成了SiO<sub>2</sub>相,可以自封氧化膜。氧化后期SiO<sub>2</sub>的脱落,Mo<sub>5</sub>Si<sub>3</sub>相的再次氧化生成MoO<sub>3</sub>和MoO<sub>2</sub>气相,以及MoSi<sub>2</sub>的内氧化直接气化,会降低涂层的抗氧化性能。 相似文献
14.
15.
16.
《中国腐蚀与防护学报》1984,(4)
第1期电化学技术测氢渗透瞬变行为研究钢的氢脆 —环境因素对钢的抗硫化物应力开裂性能的影响 ·········,·····························································~·········“············……徐克薰电化学技术测氢渗透瞬变行为研究钢的氢脆 —组织结构对ZC:此不锈例抗硫化物应力开裂性能的影响 ··················‘······,···。·········“·····················‘“·… 相似文献
17.
18.
19.
20.
《热处理技术与装备》1989,(6)
新年祝词··························································································……I(4)甚础理论钢铁结构分析与穆斯堡尔率应〔日〕·························································……l(54)高纯铁经离子束氮化表面的结构和形貌〔德〕··········································……,’’W(26)综… 相似文献
