persistent modification

Transformation mechanism of carbides and their effect on the stress rupture property were investigated in a Ni-base single crystal superalloy with microcontent of carbon.

015%)碳的镍基单晶高温合金在热处理和持久过程中的碳化物演化机制以及各种碳化物对合金持久性能的影响。

The results show that no recrystallization occurs at 1050℃ but coarse γ′ phases precipitate and stress rupture property decreases.

对标准热处理后的第一代单晶高温合金DD3吹砂,然后采用不同温度进行热处理,研究了吹砂后热处理温度对合金1000℃/195 MPa持久性能的影响。

Results showed that holding for such short time,there were a lot of blocky γ′phases in the bonding seam with D1P interlayer alloy,causing a lower stress rupture property of about 60% of.

对上述规范下获得的DD3接头组织和性能进行了研究分析,结果表明,扩散时间短,D1P中间层合金扩散焊接头组织很不均匀,在中间层合金流入处生成大量光板γ′相,对接头持久性能不利,1250℃下扩散4h接头的980℃持久性能为母材性能的60%;而D1F中间层合金扩散焊接头组织均匀一致,1250℃下扩散4h接头980℃持久性能超过母材性能的70%。

Stress Rupture Performances and Fracture Behavior of DZ951 Alloy

DZ951合金的持久性能与断裂行为

Transverse Stress-rupture Properties of Single Crystal Superalloy DD6 at Mediate Temperature

单晶高温合金DD6的中温横向持久性能

A Reliability Method for Creep-rupture Property Design of High Temperature Material

一种用于高温材料持久性能设计的可靠性方法

STATISTICAL ANALYSIS AND RELIABILITY PREDICTION OF CREEP RUPTURE PROPERTY FOR T91/P91 STEEL

T91/P91钢持久性能的统计分析及可靠性预测

High Temperature Endurance Properties of in Situ Synthesized Titanium Matrix Composites;

原位自生钛基复合材料高温持久性能研究

Experimental Study and Analysis of the Endurance Properties of Directionally Solidified Turbine Blade;

定向凝固涡轮叶片持久性能试验研究与分析

Effect of precipitates on the high temperature creep and creep rupture properties of Ti60 alloy

析出相对Ti60钛合金蠕变和持久性能的影响

We must stay with the task as long as we can.

这个任务我们能坚持多久就坚持多久。

Without correct leadership, the enthusiasm of the masses cannot be sustained.

没有正确的领导, 群众的积极性就不可能持久。

Nothing can be lasting when reason do not rule.

没有理性的控制，任何事情都不可能持久。

Because they think the harder varnish will add durability to the instrument.

因为他们以为愈硬的漆愈能增加吉他的持久性。

I have oily skin, what is the best way to keep make up on?

我是油性肌肤，要怎样才能使我的妆持久些?

The Research of Domestic Super304H Steel Pipes on Mechanical Properties, Microstructure and Creep Rupture Strength;

国产化Super304H钢管组织性能及持久强度研究

Design of Hibernate-based Object Persistence Layer and Its Improvement;

基于Hibernate的对象持久层的设计和性能的提升

Study on Objects Persistence and Performance Optimization Based on Relational Database;

基于关系数据库的对象持久化及性能优化研究

Persistence of Solutions of A Competition Model with Beddington-DeAngelis Functional Response

一类带有Beddington-DeAngelis功能反应的竞争模型的持久性

permanent failure

永久性故障（持续性故障）

He couldn't sustain his interest.

他的兴趣不能持久。