Glass forming and thermal properties of the Mg65Cu 25Gd10-xNdx(x=0 ∼ 10) amorphous alloys

L. J. Chang; B. C. Yang; P. T. Chiang; J. S.C. Jang; J. C. Huang

doi:10.4028/0-87849-428-6.2106

Glass forming and thermal properties of the Mg₆₅Cu ₂₅Gd_10-xNd_x(x=0 ∼ 10) amorphous alloys

L. J. Chang, B. C. Yang, P. T. Chiang, J. S.C. Jang, J. C. Huang

Graduate Institute of Materials Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Scopus citations

Abstract

The Mg₆₅Cu₂₅Gd_10-xNd_x(x=0 ∼ 10) amorphous alloy rods with 3-6 mm in diameter were prepared by Cu-mold injection method. The thermal properties and mechanical properties of these amorphous alloys have been investigated by DSC, SEM with EDS capability, X-ray diffractometry (XRD) and Vickers hardness test. The XRD revealed that these entire as-quenched Mg₆₅Cu₂₅Gd_10-xNd_x alloy rods exhibit a broaden diffraction pattern of amorphous phase. A clear Ts (glass transition temperature) and supercooled region (about 30-60 K) were revealed for all of those Mg₆₅Cu₂₅Gd_10-xNd _x alloys. In addition, the single stage crystallization of the Mg₆₅Cu₂₅Gd₁₀ alloy was found to change into two stages crystallization when the Nd element was added into this alloy. In parallel, the crystallization temperature (T_x) and supercooled region (ΔT_x) presents a decreasing trend with increasing Nd content, The lowest liquidus temperature (T₁, about 721 K) occurs at the Mg₆₅Cu₂₅Gd₈Nd₂ alloy. In addition, The Mg₆₅Cu₂₅Gd₈Nd₂ alloy exhibits the high y value (0.416, defined as y= T_x/T₈+T ₁), a relatively high T_rg (0.59, defined as T_rg = T_g/T₁/) and the highest hardness in these alloys.

Original language	English
Title of host publication	Supplement to THERMEC 2006, 5th International Conference on PROCESSING and MANUFACTURING OF ADVANCED MATERIALS, THERMEC 2006
Publisher	Trans Tech Publications Ltd
Pages	2106-2110
Number of pages	5
Edition	PART 2
ISBN (Print)	0878494286, 9780878494286
DOIs	https://doi.org/10.4028/0-87849-428-6.2106
State	Published - 2007
Event	5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006 - Vancouver, Canada Duration: 4 Jul 2006 → 8 Jul 2006

Publication series

Name	Materials Science Forum
Number	PART 2
Volume	539-543
ISSN (Print)	0255-5476
ISSN (Electronic)	1662-9752

Conference

Conference	5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006
Country/Territory	Canada
City	Vancouver
Period	4/07/06 → 8/07/06

Keywords

Amorphous
Mechanical properties
Mg-based alloy
Thermal property

Access to Document

10.4028/0-87849-428-6.2106

Cite this

Chang, L. J., Yang, B. C., Chiang, P. T., Jang, J. S. C., & Huang, J. C. (2007). Glass forming and thermal properties of the Mg₆₅Cu ₂₅Gd_10-xNd_x(x=0 ∼ 10) amorphous alloys. In Supplement to THERMEC 2006, 5th International Conference on PROCESSING and MANUFACTURING OF ADVANCED MATERIALS, THERMEC 2006 (PART 2 ed., pp. 2106-2110). (Materials Science Forum; Vol. 539-543, No. PART 2). Trans Tech Publications Ltd. https://doi.org/10.4028/0-87849-428-6.2106

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title = "Glass forming and thermal properties of the Mg65Cu 25Gd10-xNdx(x=0 ∼ 10) amorphous alloys",

abstract = "The Mg65Cu25Gd10-xNdx(x=0 ∼ 10) amorphous alloy rods with 3-6 mm in diameter were prepared by Cu-mold injection method. The thermal properties and mechanical properties of these amorphous alloys have been investigated by DSC, SEM with EDS capability, X-ray diffractometry (XRD) and Vickers hardness test. The XRD revealed that these entire as-quenched Mg65Cu25Gd10-xNdx alloy rods exhibit a broaden diffraction pattern of amorphous phase. A clear Ts (glass transition temperature) and supercooled region (about 30-60 K) were revealed for all of those Mg65Cu25Gd10-xNd x alloys. In addition, the single stage crystallization of the Mg65Cu25Gd10 alloy was found to change into two stages crystallization when the Nd element was added into this alloy. In parallel, the crystallization temperature (Tx) and supercooled region (ΔTx) presents a decreasing trend with increasing Nd content, The lowest liquidus temperature (T1, about 721 K) occurs at the Mg65Cu25Gd8Nd2 alloy. In addition, The Mg65Cu25Gd8Nd2 alloy exhibits the high y value (0.416, defined as y= Tx/T8+T 1), a relatively high Trg (0.59, defined as Trg = Tg/T1/) and the highest hardness in these alloys.",

keywords = "Amorphous, Mechanical properties, Mg-based alloy, Thermal property",

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Chang, LJ, Yang, BC, Chiang, PT, Jang, JSC & Huang, JC 2007, Glass forming and thermal properties of the Mg₆₅Cu ₂₅Gd_10-xNd_x(x=0 ∼ 10) amorphous alloys. in Supplement to THERMEC 2006, 5th International Conference on PROCESSING and MANUFACTURING OF ADVANCED MATERIALS, THERMEC 2006. PART 2 edn, Materials Science Forum, no. PART 2, vol. 539-543, Trans Tech Publications Ltd, pp. 2106-2110, 5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006, Vancouver, Canada, 4/07/06. https://doi.org/10.4028/0-87849-428-6.2106

Glass forming and thermal properties of the Mg₆₅Cu ₂₅Gd_10-xNd_x(x=0 ∼ 10) amorphous alloys. / Chang, L. J.; Yang, B. C.; Chiang, P. T. et al.
Supplement to THERMEC 2006, 5th International Conference on PROCESSING and MANUFACTURING OF ADVANCED MATERIALS, THERMEC 2006. PART 2. ed. Trans Tech Publications Ltd, 2007. p. 2106-2110 (Materials Science Forum; Vol. 539-543, No. PART 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Glass forming and thermal properties of the Mg65Cu 25Gd10-xNdx(x=0 ∼ 10) amorphous alloys

AU - Chang, L. J.

AU - Yang, B. C.

AU - Chiang, P. T.

AU - Jang, J. S.C.

AU - Huang, J. C.

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N2 - The Mg65Cu25Gd10-xNdx(x=0 ∼ 10) amorphous alloy rods with 3-6 mm in diameter were prepared by Cu-mold injection method. The thermal properties and mechanical properties of these amorphous alloys have been investigated by DSC, SEM with EDS capability, X-ray diffractometry (XRD) and Vickers hardness test. The XRD revealed that these entire as-quenched Mg65Cu25Gd10-xNdx alloy rods exhibit a broaden diffraction pattern of amorphous phase. A clear Ts (glass transition temperature) and supercooled region (about 30-60 K) were revealed for all of those Mg65Cu25Gd10-xNd x alloys. In addition, the single stage crystallization of the Mg65Cu25Gd10 alloy was found to change into two stages crystallization when the Nd element was added into this alloy. In parallel, the crystallization temperature (Tx) and supercooled region (ΔTx) presents a decreasing trend with increasing Nd content, The lowest liquidus temperature (T1, about 721 K) occurs at the Mg65Cu25Gd8Nd2 alloy. In addition, The Mg65Cu25Gd8Nd2 alloy exhibits the high y value (0.416, defined as y= Tx/T8+T 1), a relatively high Trg (0.59, defined as Trg = Tg/T1/) and the highest hardness in these alloys.

AB - The Mg65Cu25Gd10-xNdx(x=0 ∼ 10) amorphous alloy rods with 3-6 mm in diameter were prepared by Cu-mold injection method. The thermal properties and mechanical properties of these amorphous alloys have been investigated by DSC, SEM with EDS capability, X-ray diffractometry (XRD) and Vickers hardness test. The XRD revealed that these entire as-quenched Mg65Cu25Gd10-xNdx alloy rods exhibit a broaden diffraction pattern of amorphous phase. A clear Ts (glass transition temperature) and supercooled region (about 30-60 K) were revealed for all of those Mg65Cu25Gd10-xNd x alloys. In addition, the single stage crystallization of the Mg65Cu25Gd10 alloy was found to change into two stages crystallization when the Nd element was added into this alloy. In parallel, the crystallization temperature (Tx) and supercooled region (ΔTx) presents a decreasing trend with increasing Nd content, The lowest liquidus temperature (T1, about 721 K) occurs at the Mg65Cu25Gd8Nd2 alloy. In addition, The Mg65Cu25Gd8Nd2 alloy exhibits the high y value (0.416, defined as y= Tx/T8+T 1), a relatively high Trg (0.59, defined as Trg = Tg/T1/) and the highest hardness in these alloys.

KW - Amorphous

KW - Mechanical properties

KW - Mg-based alloy

KW - Thermal property

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Chang LJ, Yang BC, Chiang PT, Jang JSC, Huang JC. Glass forming and thermal properties of the Mg₆₅Cu ₂₅Gd_10-xNd_x(x=0 ∼ 10) amorphous alloys. In Supplement to THERMEC 2006, 5th International Conference on PROCESSING and MANUFACTURING OF ADVANCED MATERIALS, THERMEC 2006. PART 2 ed. Trans Tech Publications Ltd. 2007. p. 2106-2110. (Materials Science Forum; PART 2). doi: 10.4028/0-87849-428-6.2106