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SCIESCOPUS

A novel specimen geometry for an improved estimation of hydrogen effects on the tensile behavior of face-centered cubic alloys Go to Link

Lee, Si-Yeon; Gao, Zhe; Choi, Jae-Hyeok; Zhao, Yakai; Wang, Pei; Murakami, Kotaro; Komazaki, Shin-ichi; Kim, Hyoung Seop; Ramamurty, Upadrasta; Jang, Jae-il

ArticleIssue Date2026CitationScripta Materialia, v.280, pp 1 - 5PublisherActa Materialia Inc

SCIESCOPUS

Activation energy for plastic flow in nanocrystalline CoCrFeMnNi high-entropy alloy: A high temperature nanoindentation study Go to Link

Lee, Dong-Hyun; Choi, In-Chul; Yang, Guanghui; Lu, Zhaoping; Kawasaki, Megumi; Ramamurty, Upadrasta; Schwaiger, Ruth; Jang, Jae-il

ArticleIssue Date2018CitationSCRIPTA MATERIALIA, v.156, pp.129 - 133PublisherPERGAMON-ELSEVIER SCIENCE LTD

SCISCIESCOPUS

Annealing effect on plastic flow in nanocrystalline CoCrFeMnNi high-entropy alloy: A nanomechanical analysis Go to Link

Lee, Dong-Hyun; Lee, Jung-A; Zhao, Yakai; Lu, Zhaoping; Suh, Jin-Yoo; Kim, Ju-Young; Ramamurty, Upadrasta; Kawasaki, Megumi; Langdon, Terence G.; Jang, Jae-il

ArticleIssue Date2017CitationActa Materialia, v.140, pp 443 - 451PublisherElsevier BV

SCISCIESCOPUS

Decoupling the contributions of constituent layers to the strength and ductility of a multi-layered steel Go to Link

Seok, Moo-Young; Lee, Jung-A; Lee, Dong-Hyun; Ramamurty, Upadrasta; Nambu, Shoichi; Koseki, Toshihiko; Jang, Jae-il

ArticleIssue Date2016CitationActa Materialia, v.121, pp 164 - 172PublisherElsevier BV

SCISCIESCOPUS

Effect of hydrogen on the yielding behavior and shear transformation zone volume in metallic glass ribbons Go to Link

Zhao, Yakai; Choi, In-Chul; Seok, Moo-Young; Kim, Min-Hyun; Kim, Do-Hyang; Ramamurty, Upadrasta; Suh, Jin-Yoo; Jang, Jae-il

ArticleIssue Date2014CitationActa Materialia, v.78, pp 213 - 221PublisherElsevier BV

SCISCIESCOPUS

Estimation of the Hall-Petch strengthening coefficient of steels through nanoindentation Go to Link

Seok, Moo-Young; Choi, In-Chul; Moon, Joonoh; Kim, Sungju; Ramamurty, Upadrasta; Jang, Jae-il

ArticleIssue Date2014CitationScripta Materialia, v.87, pp 49 - 52PublisherPergamon Press Ltd.

SCISCIESCOPUS

Estimation of the shear transformation zone size fin a bulk metallic glass through statistical a analysis of the first pop-in stresses during spherical nanoindentation Go to Link

Choi, In-Chul; Zhao, Yakai; Yoo, Byung-Gil; Kim, Yong-Jae; Suh, Jin-Yoo; Ramamurty, Upadrasta; Jang, Jae-il

ArticleIssue Date2012CitationScripta Materialia, v.66, no.11, pp 923 - 926PublisherPergamon Press Ltd.

SCISCIESCOPUS

Further evidence for room temperature, indentation-induced nanocrystallization in a bulk metallic glass Go to Link

Yoo, Byung-Gil; Choi, In-Chul; Kim, Yong-Jae; Suh, Jin-Yoo; Ramamurty, Upadrasta; Jang, Jae-il

ArticleIssue Date2012CitationMaterials Science and Engineering: A, v.545, pp 225 - 228PublisherElsevier BV

SCIESCOPUS

Hydrogen trapping and micromechanical behavior in additively manufactured CoCrFeNi high-entropy alloy in as-built and pre-strained conditions Go to Link

Gao, Zhe; Lee, Dong-Hyun; Zhao, Yakai; Wang, Pei; Murakami, Kotaro; Komazaki, Shin-ichi; Suh, Jin-Yoo; Kim, Hyoung Seop; Ramamurty, Upadrasta; Jang, Jae-il

ArticleIssue Date2024CitationACTA MATERIALIA, v.271, pp 1 - 11PublisherPERGAMON-ELSEVIER SCIENCE LTD

SCISCIESCOPUS

Hydrogen-induced hardening and softening of Ni-Nb-Zr amorphous alloys: Dependence on the Zr content Go to Link

Zhao, Yakai; Choi, In-Chul; Seok, Moo-Young; Ramamurty, Upadrasta; Suh, Jin-Yoo; Jang, Jae-il

ArticleIssue Date2014CitationScripta Materialia, v.93, pp 56 - 59PublisherPergamon Press Ltd.

SCISCIESCOPUS

Hydrogen-induced nanohardness variations in a CoCrFeMnNi high-entropy alloy Go to Link

Zhao, Yakai; Lee, Dong-Hyun; Lee, Jung-A; Kim, Woo-Jin; Han, Heung Nam; Ramamurty, Upadrasta; Suh, Jin-Yoo; Jang, Jae-il

ArticleIssue Date2017CitationInternational Journal of Hydrogen Energy, v.42, no.16, pp 12015 - 12021PublisherElsevier

SCISCIESCOPUS

Increased time-dependent room temperature plasticity in metallic glass nanopillars and its size-dependency Go to Link

Yoo, Byung-Gil; Kim, Ju-Young; Kim, Yong-Jae; Choi, In-Chul; Shim, Sanghoon; Tsui, Ting Y.; Bei, Hongbin; Ramamurty, Upadrasta; Jang, Jae-il

ArticleIssue Date2012CitationInternational Journal of Plasticity, v.37, pp 108 - 118PublisherPergamon Press Ltd.

SCISCIESCOPUS

Indentation size effect and shear transformation zone size in a bulk metallic glass in two different structural states Go to Link

Choi, In-Chul; Zhao, Yakai; Kim, Yong-Jae; Yoo, Byung-Gil; Suh, Jin-Yoo; Ramamurty, Upadrasta; Jang, Jae-il

ArticleIssue Date2012CitationActa Materialia, v.60, no.19, pp 6862 - 6868PublisherElsevier BV

SCIESCOPUS

Influence of hydrogen on incipient plasticity in CoCrFeMnNi high-entropy alloy Go to Link

Yang, Guanghui; Zhao, Yakai; Lee, Dong-Hyun; Park, Jeong-Min; Seok, Moo-Young; Suh, Jin-Yoo; Ramamurty, Upadrasta; Jang, Jae-il

ArticleIssue Date2019CitationSCRIPTA MATERIALIA, v.161, pp.23 - 27PublisherPERGAMON-ELSEVIER SCIENCE LTD

SCISCIESCOPUS

Influence of pre-strain on the gaseous hydrogen embrittlement resistance of a high-entropy alloy Go to Link

Zhao, Yakai; Lee, Dong-Hyun; Kim, Woo-Jin; Seok, Moo-Young; Kim, Ju-Young; Han, Heung Nam; Suh, Jin-Yoo; Ramamurty, Upadrasta; Jang, Jae-il

ArticleIssue Date2018CitationMaterials Science and Engineering: A, v.718, pp 43 - 47PublisherElsevier BV

SCIESCOPUS

Multimodality of critical strength for incipient plasticity in L12- precipitated (CoCrNi)94Al3Ti3 medium-entropy alloy: Coherent interface-facilitated dislocation nucleation

Zhang, Qian; Qiao, Junwei; Zhao, Yakai; Jang, Jae-il; Ramamurty, Upadrasta

ArticleIssue Date2025CitationActa Materialia, v.288, pp 1 - 12PublisherElsevier BV

SCIESCOPUS

Nano-graining a particle-strengthened high-entropy alloy Go to Link

Lee, Dong-Hyun; Park, Jeong-Min; Yang, Guanghui; He, Junyang; Lu, Zhaoping; Suh, Jin-Yoo; Kawasaki, Megumi; Ramamurty, Upadrasta; Jang, Jae-il

ArticleIssue Date2019CitationSCRIPTA MATERIALIA, v.163, pp.24 - 28PublisherPERGAMON-ELSEVIER SCIENCE LTD

SCISCIESCOPUS

Nanoindentation behavior of nanotwinned Cu: Influence of indenter angle on hardness, strain rate sensitivity and activation volume Go to Link

Choi, In-Chul; Kim, Yong-Jae; Wang, Y. Morris; Ramamurty, Upadrasta; Jang, Jae-il

ArticleIssue Date2013CitationActa Materialia, v.61, no.19, pp 7313 - 7323PublisherElsevier BV

SCISCIESCOPUS

Nanoindentation for probing the mechanical behavior of molecular crystals-a review of the technique and how to use it Go to Link

Ramamurty, Upadrasta; Jang, Jae-il

ArticleIssue Date2014CitationCrystEngComm, v.16, no.1, pp 12 - 23PublisherRoyal Society of Chemistry

SCISCIESCOPUS

On the contributions of different micromechanisms for enhancement in the strength of TI-6Al-4V alloy upon B addition: A nanomechanical analysis Go to Link

Seok, Moo-Young; Zhao, Yakai; Lee, Jung-A; Mohamed, Reda M.; Al-Harbi, Laila M.; Al-Ghamdi, Mohammed S.; Singh, Gaurav; Ramamurty, Upadrasta; Jang, Jae-il

ArticleIssue Date2016CitationMaterials Science and Engineering: A, v.649, pp 123 - 127PublisherElsevier BV

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Browsing by Ramamurty, UpadrastaAuthor

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