公开(公告)号：US20210395869A1

公开(公告)日：2021-12-23

申请号：US17343408

申请日：2021-06-09

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Qing WANG ,  Zhenhua WANG ,  Chuang DONG

IPC: C22C38/54 ,  C22C38/50 ,  C22C38/44 ,  C22C38/06 ,  C22C33/04

Abstract: An iron-based superalloy for high temperature 700° C. with coherent precipitation of cuboidal B2 nanoparticles, belongs to the field of heat-resistant stainless steel, including Fe, Cr, Ni, Al, Mo, W, Zr, B elements. C, Si, Mn, S, P, O, N are impurity elements. The weight percent (wt. %) of its alloy composition is Cr: 10.0˜12.0, Ni: 13.0˜15.0, Al: 6.0˜7.0, Mo: 2.0˜3.0, W: 0.3˜0.7, Zr: 0.03˜0.05, B: 0.004˜0.007, C≤0.02, Si≤0.20, Mn≤0.20, S≤0.01, P≤0.02, O≤0.005, N≤0.02, Fe: balance; and the atomic percent ratio of Zr/B is 1:1, the atomic percent ratio of Cr/(Mo+W) is 8:1, and the atomic percent ratio of Mo/W is 8:1. The coherent precipitation of cuboidal B2 nanoparticles in ferritic matrix through the alloy composition design.

公开(公告)号：US20240052459A1

公开(公告)日：2024-02-15

申请号：US18217770

申请日：2023-07-03

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Zhihao ZHU ,  Shuang ZHANG ,  Qing WANG ,  Xiaona LI ,  Chuang DONG

IPC: C22C14/00 ,  C22C1/03

CPC classification number: C22C14/00 ,  C22C1/03

Abstract: The present invention relates to a 600° C./1 GPa high-temperature ultra-high strength Ti alloy and a preparation method therefor, and belongs to an alloy system of Ti—Al—Zr—Sn—Si plus refractory metals. The 600° C./1 GPa high-temperature ultra-high strength Ti alloy comprises the following main components by mass percent: 5.2 wt. %-6.0 wt. % of Al, 6.2 wt. %-12.5 wt. % of Zr, 5.8 wt. %-6.5 wt. % of Sn, 0.3 wt. %-1.5 wt. % of Si and the balance of Ti element, refractory metals and other unavoidable impurities. Firstly, an alloy is prepared after incoming materials quality inspection. Secondly, a high-melting point master alloy and a low-melting point Al—Sn master alloy are respectively prefabricated to inhibit the uneven dissolution of elements and improve the microstructure homogeneity. Finally, the alloy blocks are subjected to vacuum arc melting to prepare an alloy. The present invention is convenient for mass production and can be used as an alternative material for high-temperature structural components of cutting-edge aviation and weapon equipment.

公开(公告)号：US20130136650A1

公开(公告)日：2013-05-30

申请号：US13751142

申请日：2013-01-27

Applicant: Dalian University Of Technology

Inventor： Xiaona LI ,  Xinyi ZHANG ,  Jin ZHU ,  Qing WANG ,  Chuang DONG

IPC: C22C9/00 ,  C23C14/18

CPC classification number: C22C9/00 ,  C22C9/06 ,  C23C14/165 ,  C23C14/185 ,  C23C14/5806

Abstract: A Cu—Ni—Mo alloy thin film, including Ni as a solution element and Mo as a diffusion barrier element. Ni and Mo are co-doped with Cu. The enthalpy of mixing between Mo and Cu is +19 kJ/mol, and the enthalpy of mixing between Mo and Ni is −7 kJ/mol. The atomic fraction of Mo/Ni is within the range of 0.06-0.20 or the weight faction of Mo/Ni within the range of 0.10-0.33. The total amount of Ni and Mo additions is within the range of 0.14-1.02 at. % or wt. %. A method for manufacturing the alloy thin film is also provided.

Abstract translation: Cu-Ni-Mo合金薄膜，其包括Ni作为溶液元素，Mo作为扩散阻挡元件。 Ni和Mo与Cu共掺杂。 Mo和Cu之间的混合焓为+ 19 kJ / mol，Mo和Ni之间的混合焓为-7 kJ / mol。 Mo / Ni的原子分数在0.06-0.20的范围内，Mo / Ni的重量分数在0.10-0.33的范围内。 Ni和Mo添加量的总量在0.14-1.02英寸的范围内。 ％或wt。 ％。 还提供了一种制造合金薄膜的方法。